SRON Aardobservatie publicaties

Aerosol-cloud interactions (ACI) are a major source of uncertainty in climate science, critically affecting our ability to project near-term climate evolution and assess societal risks. These interactions influence effective radiative…

Authors: Im, Samset, Nenes, Thomas, Kokkola, Dubovik, Amiridis, Arola, Bellouin, Benedetti, Bilde, Blichner, Decesari, Ekman, García‐Pando, Gross, Gryspeerdt, Hasekamp, Kahn, Laakso, Lohmann, Marelle, Massling, Myhre, Pöhlker, Quaas, Raatikainen, Riipinen, Schmale, Seifert,…

Bibcode: 2026AGUA....701872I

DOI: 10.1029/2025AV001872

Lees meer

The second-generation Directional Polarization Camera (DPC-2) onboard the GF-5(02) satellite fills the gap of spaceborne multi-angle polarimetric measurements after the discontinuation of the POLDER/PARASOL service. DPC-2/GF-5(02) has great potential for…

Authors: Ji, Li, Zhang, Fu, Hasekamp, Fan, Liu, Leeuw

Bibcode: 2025JGRD..13043908J

DOI: 10.1029/2025JD043908

Lees meer

The NASA Aerosol Cloud Meteorology Interactions over the Western Atlantic Experiment (ACTIVATE) conducted 162 joint flights with two aircraft over the northwest Atlantic to study aerosol-cloud interactions (ACIs), which represent…

Authors: Sorooshian, Siu, Butler, Brunke, Cairns, Chellappan, Chen, Choi, Crosbie, Cutler, DiGangi, Diskin, Ferrare, Hair, Hostetler, Kirschler, Kleb, Li, Liu, McComiskey, Namdari, Painemal, Schlosser, Shingler, Shook, Silva, Sinclair, Smith, Soloff, Stamnes,…

Bibcode: 2025BAMS..106E1517S

DOI: 10.1175/BAMS-D-24-0136.1

Lees meer

Open biomass burning has major impacts globally and regionally on atmospheric composition. Fire emissions include particulate matter, tropospheric ozone precursors, and greenhouse gases, as well as persistent organic pollutants, mercury,…

Authors: Whaley, Butler, Adame, Ambulkar, Arnold, Buchholz, Gaubert, Hamilton, Huang, Hung, Kaiser, Kaminski, Knote, Koren, Kouassi, Lin, Liu, Ma, Manomaiphiboon, Bergas Masso, McCarty, Mertens, Parrington, Peiro, Saxena, Sonwani, Surapipith, Tan, Tang,…

Bibcode: 2025GMD....18.3265W

DOI: 10.5194/gmd-18-3265-2025

Lees meer

Satellite observations of atmospheric methane are a powerful resource for quantifying methane emissions over any region worldwide. The inverse methods needed to infer emissions from these observations require a high…

Authors: Estrada, Varon, Sulprizio, Nesser, Chen, Balasus, Hancock, He, East, Mooring, Oort Alonso, Maasakkers, Aben, Baray, Bowman, Worden, Cardoso-Saldaña, Reidy, Jacob

Bibcode: 2025GMD....18.3311E

DOI: 10.5194/gmd-18-3311-2025

Lees meer

Global atmospheric carbon dioxide concentrations are largely driven by changes in fossil fuel emissions and terrestrial photosynthesis, of which tropical forests account for one-third. Relative to other tropical regions, less…

Authors: Doughty, Wimberly, Wanyama, Peiro, Parazoo, Crowell, Azong Cho

Bibcode: 2025BGeo...22.1985D

DOI: 10.5194/bg-22-1985-2025

Lees meer

The hydroxyl radical (OH) is the main oxidant in the troposphere and controls the lifetime of many atmospheric pollutants, including methane. Global annual-mean tropospheric OH concentrations ([OHoline ]) have been…

Authors: Penn, Jacob, Chen, East, Sulprizio, Bruhwiler, Maasakkers, Nesser, Qu, Zhang, Worden

Bibcode: 2025ACP....25.2947P

DOI: 10.5194/acp-25-2947-2025

Lees meer

We use satellite observations of atmospheric methane from the TROPOMI instrument to estimate total annual methane emissions for 2019–2023 from four large Southeast US landfills with gas collection and control…

Authors: Balasus, Jacob, Maxemin, Jenks, Nesser, Maasakkers, Cusworth, Scarpelli, Varon, Wang

Bibcode: 2025ERL....20b4007B

DOI: 10.1088/1748-9326/ada2b1

Lees meer

We use satellite observations of carbon monoxide (CO) to estimate CO emissions from European integrated iron and steel plants, the continent’s highest-emitting CO point sources. We perform analytical inversions to…

Authors: Leguijt, Maasakkers, Denier van der Gon, Segers, Borsdorff, van der Velde, Aben

Bibcode: 2025ACP....25..555L

DOI: 10.5194/acp-25-555-2025

Lees meer

Monitoring methane (CH4) emissions from terrestrial ecosystems is essential for assessing the relative contributions of natural and anthropogenic factors leading to climate change and shaping global climate goals. Fires are…

Authors: Zhao, Ciais, Chevallier, Canadell, van der Velde, Chuvieco, Chen, Zhang, He, Zheng

Bibcode: 2025NatCo..16..804Z

DOI: 10.1038/s41467-025-56218-w

Lees meer

Satellite observations of tropospheric trace gases and aerosols are evolving rapidly. Recently launched instruments provide increasingly higher spatial resolutions, with footprint diameters in the range of 2–8 km and with…

Authors: Rijsdijk, Eskes, Dingemans, Folkert Boersma, Sekiya, Miyazaki, Houweling

Bibcode: 2025GMD....18..483R

DOI: 10.5194/gmd-18-483-2025

Lees meer

Sea salt is the largest source of natural aerosol in the atmosphere by mass. Formed when ocean waves break and bubbles burst, sea salt aerosols (SSA) influence Earth’s climate via…

Authors: Venugopal, Bhatti, Morgenstern, Williams, Edkins, Hardacre, Jones, Revell

Bibcode: 2025JGRD..13041643V

DOI: 10.1029/2024JD041643

DOI 2: 10.22541/essoar.171691242.27078136/v1

Lees meer

Accurate cloud cover assessment is crucial in several fields, such as weather forecasting, climate science, agriculture, or energy system planning, precipitation pattern forecasting and aiding in early detection of extreme…

Authors: Gtz, Wessel, ayolu, Jahani, Debus, Cermak, Streit

Bibcode: 2025IJSTA..1810674G

DOI: 10.1109/JSTARS.2025.3557931

Lees meer

The amount of methane released to the atmosphere from the Nord Stream subsea pipeline leaks remains uncertain, as reflected in a wide range of estimates1, 2, 3, 4, 5, 6,…

Authors: Harris, Schwietzke, France, Velandia Salinas, Meixus Fernandez, Randles, Guanter, Irakulis-Loitxate, Calcan, Aben, Abrahamsson, Balcombe, Berchet, Biddle, Bittig, Böttcher, Bouvard, Broström, Bruch, Cassiani, Chipperfield, Ciais, Damm, Dammers, Denier van der Gon,…

Bibcode: 2025Natur.637.1124H

DOI: 10.1038/s41586-024-08396-8

Lees meer

We use 2021 TROPOMI and GOSAT satellite observations of atmospheric methane in an analytical inversion to quantify national methane emissions from South America at up to 25 km × 25…

Authors: Hancock, Jacob, Chen, Nesser, Davitt, Varon, Sulprizio, Balasus, Estrada, Cazorla, Dawidowski, Diez, East, Penn, Randles, Worden, Aben, Parker, Maasakkers

Bibcode: 2025ACP....25..797H

DOI: 10.5194/acp-25-797-2025

Lees meer

This study presents a comprehensive investigation of Methane (CH4) emissions in the wetlands of South Sudan, employing an integrated approach that combines TROPOMI satellite data, river altimetry, and hydrological model…

Authors: Albuhaisi, van der Velde, Pandey, Houweling

Bibcode: 2024RemS...16.4744A

DOI: 10.3390/rs16244744

Lees meer

In September 2020, the Western United States experienced anomalously severe wildfires that resulted in carbon monoxide (CO) emissions almost three times the 2001–2019 average. In this study, we investigate the…

Authors: Marey, Drummond, Jones, Worden, Clerbaux, Borsdorff, Gille

Bibcode: 2024JGRD..12939876M

DOI: 10.1029/2023JD039876

Lees meer

Numerous studies have reported in situ monitoring and source analysis in the Tibetan Plateau (TP), a region crucial for climate systems. However, a gap remains in understanding the comprehensive distribution…

Authors: Lin, Tian, Borsdorff, Li, Landgraf, Wu, Xue, Ding, Ye, Zhu, Liu

Bibcode: 2024ScTEn.95275942L

DOI: 10.1016/j.scitotenv.2024.175942

Lees meer

The sensitivity of cloud microphysics to aerosol loading, quantified by the aerosol-cloud interactions (ACI) index, plays a crucial role in calculating the radiative forcing due to ACI (RFaci). However, the…

Authors: Wang, Jia, Zhang, Fang, Li, Zhu, Wang, Wang, Li

Bibcode: 2024AtmRe.30907552W

DOI: 10.1016/j.atmosres.2024.107552

Lees meer

Satellites have been providing spaceborne observations of the total column of CO2 (denoted XCO2) for over two decades now, and, with the need for independent verification of Paris Agreement objectives,…

Authors: Dogniaux, Crevoisier

Bibcode: 2024AMT....17.5373D

DOI: 10.5194/amt-17-5373-2024

Lees meer

In this study we explore aerosol-cloud interactions in liquid-phase clouds over eastern China (EC) and its adjacent ocean (ECO) using the WRF-Chem-SBM model with four-dimensional assimilation. The results show that…

Authors: Zhao, Ma, Quaas, Jia

Bibcode: 2024ACP....24.9101Z

DOI: 10.5194/acp-24-9101-2024

Lees meer

The Arctic and boreal regions are experiencing a rapid increase in temperature, resulting in a changing cryosphere, increasing human activity, and potentially increasing high-latitude methane emissions. Satellite observations from Sentinel-5P…

Authors: Lindqvist, Kivimäki, Häkkilä, Tsuruta, Schneising, Buchwitz, Lorente, Martinez Velarte, Borsdorff, Alberti, Backman, Buschmann, Chen, Dubravica, Hase, Heikkinen, Karppinen, Kivi, McGee, Notholt, Rautiainen, Roche, Simpson, Strong, Tu, Wunch, Aalto, Tamminen

Bibcode: 2024RemS...16.2979L

DOI: 10.3390/rs16162979

Lees meer

Anthropogenic methane (CH4) emissions increases from the period 1850–1900 until 2019 are responsible for around 65% as much warming as carbon dioxide (CO2) has caused to date, and large reductions…

Authors: Shindell, Sadavarte, Aben, Bredariol, Dreyfus, Höglund-Isaksson, Poulter, Saunois, Schmidt, Szopa, Rentz, Parsons, Qu, Faluvegi, Maasakkers

Bibcode: 2024FrSci...249770S

DOI: 10.3389/fsci.2024.1349770

Lees meer

Dimethyl sulfide (DMS) is the largest source of natural sulfur in the atmosphere and undergoes oxidation reactions resulting in gas-to-particle conversion to form sulfate aerosol. Climate models typically use independent…

Authors: Bhatti, Revell, McDonald, Archibald, Schuddeboom, Williams, Hardacre, Mulcahy, Lin

Bibcode: 2024JGRD..12940635B

DOI: 10.1029/2023JD040635

Lees meer

3D effects cause substantial underestimation of cloud optical thickness (COT) in airborne and satellite retrievals based on 1D radiative transfer computations (such as in the case of widely used bispectral…

Authors: Alexandrov, Cairns, Emde, Van Diedenhoven

Bibcode: 2024FrRS....597631A

DOI: 10.3389/frsen.2024.1397631

Lees meer

Venezuela has long been identified as an area with large methane emissions and intensive oil exploitation, especially in the Lake Maracaibo region, but production has strongly decreased in recent years.…

Authors: Nathan, Maasakkers, Naus, Gautam, Omara, Varon, Sulprizio, Estrada, Lorente, Borsdorff, Parker, Aben

Bibcode: 2024ACP....24.6845N

DOI: 10.5194/acp-24-6845-2024

Lees meer

This paper describes a neural network cloud masking scheme from PARASOL (Polarization and Anisotropy of Reflectances for Atmospheric Science coupled with Observations from a Lidar) multi-angle polarimetric measurements. The algorithm…

Authors: Yuan, Fu, van Diedenhoven, Lin, Erisman, Hasekamp

Bibcode: 2024AMT....17.2595Y

DOI: 10.5194/amt-17-2595-2024

Lees meer

Coupled atmosphere and ocean remote sensing retrievals of aerosol, cloud, and oceanic phytoplankton microphysical properties, such as those carried out by the NASA Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) mission,…

Authors: Chemyakin, Stamnes, Allen, Burton, Hair, Hostetler, Chowdhary, van Diedenhoven, Cairns

Bibcode: 2024OptL...49.2453C

DOI: 10.1364/OL.513735

Lees meer

We quantify 2019 annual mean methane emissions in the contiguous US (CONUS) at 0.25° × 0.3125° resolution by inverse analysis of atmospheric methane columns measured by the Tropospheric Monitoring Instrument…

Authors: Nesser, Jacob, Maasakkers, Lorente, Chen, Lu, Shen, Qu, Sulprizio, Winter, Ma, Bloom, Worden, Stavins, Randles

Bibcode: 2024ACP....24.5069N

DOI: 10.5194/acp-24-5069-2024

Lees meer

The Earth’s energy imbalance is the net radiative flux at the top-of-atmosphere. Climate model simulations suggest that the observed positive imbalance trend in the previous two decades is inconsistent with…

Authors: Hodnebrog, Myhre, Jouan, Andrews, Forster, Jia, Loeb, Olivié, Paynter, Quaas, Raghuraman, Schulz

Bibcode: 2024ComEE...5..166H

DOI: 10.1038/s43247-024-01324-8

Lees meer

As a precursor process to cloud formation, aerosol activation over the Tibetan Plateau (TP) plays a pivotal role in regional cloud-precipitation and global climate. However, its characteristics remain unclear due…

Authors: Wang, Li, Fang, Zhang, He, Pöhlker, Henning, Tang, Jia, Wang, Jian, Shi, Huang

Bibcode: 2024npCAS...7...77W

DOI: 10.1038/s41612-024-00629-x

Lees meer

The TROPOMI XCH4 data product requires rigorous cloud filtering to achieve a product accuracy of <1%. To this end, operational XCH4 data processing has been based on SUOMI-NPP VIIRS cloud…

Authors: Borsdorff, Martinez-Velarte, Sneep, ter Linden, Landgraf

Bibcode: 2024RemS...16.1208B

DOI: 10.3390/rs16071208

Lees meer

From a passive satellite remote sensing point of view, the richest set of information on aerosol properties can be obtained from instruments that measure both intensity and polarization of backscattered…

Authors: Hasekamp, Litvinov, Fu, Chen, Dubovik

Bibcode: 2024AMT....17.1497H

DOI: 10.5194/amt-17-1497-2024

Lees meer

The University of Maryland, Baltimore County (UMBC) Hyper-Angular Rainbow Polarimeter (HARP2) will be on board NASA’s Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) mission, scheduled for launch in January 2024. In…

Authors: Gao, Franz, Zhai, Knobelspiesse, Sayer, Xu, Vanderlei Martins, Cairns, Castellanos, Fu, Hannadige, Hasekamp, Hu, Ibrahim, Patt, Puthukkudy, Werdell

Bibcode: 2023AMT....16.5863G

DOI: 10.5194/amt-16-5863-2023

Lees meer

In order to conduct accurate aerosol retrieval over snow, the Remote Sensing of Trace Gases and Aerosol Products (RemoTAP) algorithm developed by SRON Netherlands Institute for Space Research is extended…

Authors: Zhang, Fu, Hasekamp

Bibcode: 2023AMT....16.6051Z

DOI: 10.5194/amt-16-6051-2023

Lees meer

Atmospheric aerosols affect the Earth’s climate in many ways, including acting as the seeds on which cloud droplets form. Since a large fraction of these particles is anthropogenic, the clouds’…

Authors: Rosenfeld, Kokhanovsky, Goren, Gryspeerdt, Hasekamp, Jia, Lopatin, Quaas, Pan, Sourdeval

Bibcode: 2023RvGeo..6100799R

DOI: 10.1029/2022RG000799

Lees meer

Movement restrictions were imposed in 2020 to mitigate the spread of Covid-19. These lock-down episodes provide a unique opportunity to study the sensitivity of urban photochemistry to temporary emission reductions…

Authors: Lama, Houweling, Boersma, Aben, van der Gon, Krol

Bibcode: 2023AtmEn.31220042L

DOI: 10.1016/j.atmosenv.2023.120042

Lees meer

A reduction in anthropogenic methane emissions is vital to limit near-term global warming. A small number of so-called super-emitters is responsible for a disproportionally large fraction of total methane emissions.…

Authors: Schuit, Maasakkers, Bijl, Mahapatra, van den Berg, Pandey, Lorente, Borsdorff, Houweling, Varon, McKeever, Jervis, Girard, Irakulis-Loitxate, Gorroño, Guanter, Cusworth, Aben

Bibcode: 2023ACP....23.9071S

DOI: 10.5194/acp-23-9071-2023

Lees meer

Tropical forests such as the Amazonian rainforests play an important role for climate, are large carbon stores and are a treasure of biodiversity. Amazonian forests have been exposed to large-scale…

Authors: Basso, Wilson, Chipperfield, Tejada, Cassol, Arai, Williams, Smallman, Peters, Naus, Miller, Gloor

Bibcode: 2023ACP....23.9685B

DOI: 10.5194/acp-23-9685-2023

Lees meer

The 2015 Paris Climate Agreement and Global Methane Pledge formalized agreement for countries to report and reduce methane emissions to mitigate near-term climate change. Emission inventories generated through surface activity…

Authors: Worden, Pandey, Zhang, Cusworth, Qu, Bloom, Ma, Maasakkers, Byrne, Duren, Crisp, Gordon, Jacob

Bibcode: 2023AGUA....400871W

DOI: 10.1029/2023AV000871

Lees meer

The NASA Aerosol Cloud meTeorology Interactions oVer the western ATlantic Experiment (ACTIVATE) produced a unique dataset for research into aerosol-cloud-meteorology interactions, with applications extending from process-based studies to multi-scale model…

Authors: Sorooshian, Alexandrov, Bell, Bennett, Betito, Burton, Buzanowicz, Cairns, Chemyakin, Chen, Choi, Collister, Cook, Corral, Crosbie, van Diedenhoven, DiGangi, Diskin, Dmitrovic, Edwards, Fenn, Ferrare, van Gilst, Hair, Harper, Hilario, Hostetler, Jester,…

Bibcode: 2023ESSD...15.3419S

DOI: 10.5194/essd-15-3419-2023

Lees meer

Satellite observations of dry-column methane mixing ratios (XCH4) from shortwave infrared (SWIR) solar backscatter radiation provide a powerful resource to quantify methane emissions in service of climate action. The TROPOspheric…

Authors: Balasus, Jacob, Lorente, Maasakkers, Parker, Boesch, Chen, Kelp, Nesser, Varon

Bibcode: 2023AMT....16.3787B

DOI: 10.5194/amt-16-3787-2023

Lees meer

We apply a local ensemble transform Kalman smoother (LETKS) in combination with the global aerosol-climate model ECHAM-HAM to estimate aerosol emissions from POLDER-3/PARASOL (POLarization and Directionality of the Earth’s Reflectances)…

Authors: Tsikerdekis, Hasekamp, Schutgens, Zhong

Bibcode: 2023ACP....23.9495T

DOI: 10.5194/acp-23-9495-2023

Lees meer

This paper presents the automated plume detection and emission estimation algorithm (APE), developed to detect CO plumes from isolated biomass burning events and to quantify the corresponding CO emission rate.…

Authors: Goudar, Anema, Kumar, Borsdorff, Landgraf

Bibcode: 2023GMD....16.4835G

DOI: 10.5194/gmd-16-4835-2023

Lees meer

Carbon monoxide (CO) is an air pollutant that plays an important role in atmospheric chemistry and is mostly emitted by forest fires and incomplete combustion in, for example, road transport,…

Authors: Leguijt, Maasakkers, Denier van der Gon, Segers, Borsdorff, Aben

Bibcode: 2023ACP....23.8899L

DOI: 10.5194/acp-23-8899-2023

Lees meer

We apply atmospheric methane column retrievals from two different satellite instruments (Greenhouse gases Observing SATellite – GOSAT; TROPOspheric Monitoring Instrument – TROPOMI) to a regional inversion framework to quantify East…

Authors: Liang, Zhang, Chen, Zhang, Liu, Chen, Mao, Shen, Qu, Chen, Zhou, Wang, Parker, Boesch, Lorente, Maasakkers, Aben

Bibcode: 2023ACP....23.8039L

DOI: 10.5194/acp-23-8039-2023

Lees meer

We quantify weekly methane emissions at 0.25∘ × 0.3125∘ (≈25 × 25 km2) resolution from the Permian Basin, the largest oil production basin in the US, by inverse analysis of…

Authors: Varon, Jacob, Hmiel, Gautam, Lyon, Omara, Sulprizio, Shen, Pendergrass, Nesser, Qu, Barkley, Miles, Richardson, Davis, Pandey, Lu, Lorente, Borsdorff, Maasakkers, Aben

Bibcode: 2023ACP....23.7503V

DOI: 10.5194/acp-23-7503-2023

Lees meer

This study investigates atmospheric δ13CH4 trends, as produced by a global atmospheric transport model using CH4 inversions from CarbonTracker-Europe CH4 for 2000-2020, and compares them to observations. The CH4 inversions…

Authors: Mannisenaho, Tsuruta, Backman, Houweling, Segers, Krol, Saunois, Poulter, Zhang, Lan, Dlugokencky, Michel, White, Aalto

Bibcode: 2023Atmos..14.1121M

DOI: 10.3390/atmos14071121

Lees meer

This paper investigates the use of soil moisture data from satellites and a hydrological model as inputs to a simplified CH4 emission model (MeSMOD) for estimating CH4 emissions from boreal…

Authors: Albuhaisi, van der Velde, De Jeu, Zhang, Houweling

Bibcode: 2023RemS...15.3433A

DOI: 10.3390/rs15133433

Lees meer

Since 2017 the Tropospheric Monitoring Instrument (TROPOMI) on board ESA’s Copernicus Sentinel-5 satellite (S5-P) has provided the operational carbon monoxide (CO) data product with daily global coverage on a spatial…

Authors: Borsdorff, Campos, Kille, Zarzana, Volkamer, Landgraf

Bibcode: 2023AMT....16.3027B

DOI: 10.5194/amt-16-3027-2023

Lees meer

We describe the PACE-MAPP algorithm that simultaneously retrieves aerosol and ocean optical parameters using multiangle and multispectral polarimeter measurements from the SPEXone, Hyper-Angular Rainbow Polarimeter 2 (HARP2), and Ocean Color…

Authors: Stamnes, Jones, Allen, Chemyakin, Bell, Chowdhary, Liu, Burton, Van Diedenhoven, Hasekamp, Hair, Hu, Hostetler, Ferrare, Stamnes, Cairns

Bibcode: 2023FrRS....474672S

DOI: 10.3389/frsen.2023.1174672

Lees meer

An important uncertainty in the modeling of methane (CH4) emissions from natural wetlands is the wetland area. It is difficult to model wetlands’ CH4 emissions because of several factors, including…

Authors: Albuhaisi, van der Velde, Houweling

Bibcode: 2023RemS...15.2840A

DOI: 10.3390/rs15112840

Lees meer

We use 2019 TROPOMI satellite observations of atmospheric methane in an analytical inversion to quantify methane emissions from the Middle East and North Africa at up to ∼25 km ×…

Authors: Chen, Jacob, Gautam, Omara, Stavins, Stowe, Nesser, Sulprizio, Lorente, Varon, Lu, Shen, Qu, Pendergrass, Hancock

Bibcode: 2023ACP....23.5945C

DOI: 10.5194/acp-23-5945-2023

Lees meer

Atmospheric aerosols and their impact on cloud properties remain the largest uncertainty in the human forcing of the climate system. By increasing the concentration of cloud droplets (Nd), aerosols reduce…

Authors: Gryspeerdt, Povey, Grainger, Hasekamp, Hsu, Mulcahy, Sayer, Sorooshian

Bibcode: 2023ACP....23.4115G

DOI: 10.5194/acp-23-4115-2023

Lees meer

Even though methane concentrations have contributed an estimated 23% of climate forcing, part of the recent increases in the global methane background concentrations remain unexplained. Satellite remote sensing has been…

Authors: de Foy, Schauer, Lorente, Borsdorff

Bibcode: 2023ERL....18d4004D

DOI: 10.1088/1748-9326/acc118

Lees meer

We interpret space-borne observations from the TROPOspheric Monitoring Instrument (TROPOMI) in a multi-inversion framework to characterize the 2018-2019 global methane budget. Evaluation of the inverse solutions indicates that simultaneous source…

Authors: Yu, Millet, Henze, Turner, Lorente Delgado, Bloom, Sheng

Bibcode: 2023ACP....23.3325Y

DOI: 10.5194/acp-23-3325-2023

Lees meer

The Copernicus Atmosphere Monitoring Service (CAMS) has recently produced a greenhouse gas reanalysis (version egg4) that covers almost 2 decades from 2003 to 2020 and which will be extended in…

Authors: Agustí-Panareda, Barré, Massart, Inness, Aben, Ades, Baier, Balsamo, Borsdorff, Bousserez, Boussetta, Buchwitz, Cantarello, Crevoisier, Engelen, Eskes, Flemming, Garrigues, Hasekamp, Huijnen, Jones, Kipling, Langerock, McNorton, Meilhac, Noël, Parrington, Peuch, Ramonet, Razinger,…

Bibcode: 2023ACP....23.3829A

DOI: 10.5194/acp-23-3829-2023

Lees meer

Satellite remote sensing of methane (CH4) using the TROPOspheric Monitoring Instrument (TROPOMI) aboard the Copernicus Sentinel-5 Precursor (S5-P) satellite is key to monitor and quantify emissions globally. Overall, the S5-P…

Authors: Lorente, Borsdorff, Martinez-Velarte, Landgraf

Bibcode: 2023AMT....16.1597L

DOI: 10.5194/amt-16-1597-2023

Lees meer

This paper provides the theoretical basis and simulated retrievals for the Cloud Height Retrieval from O2 Molecular Absorption (CHROMA) algorithm. Simulations are performed for the Ocean Color Instrument (OCI), which…

Authors: Sayer, Lelli, Cairns, van Diedenhoven, Ibrahim, Knobelspiesse, Korkin, Werdell

Bibcode: 2023AMT....16..969S

DOI: 10.5194/amt-16-969-2023

Lees meer

For aerosol, cloud, land, and ocean remote sensing, the development of accurate cloud detection methods, or cloud masks, is extremely important. For airborne passive remotesensing, it is also important to…

Authors: Nied, Jones, Seaman, Shingler, Hair, Cairns, Gilst, Bucholtz, Schmidt, Chellappan, Zuidema, Van Diedenhoven, Sorooshian, Stamnes

Bibcode: 2023FrRS....418745N

DOI: 10.3389/frsen.2023.1118745

Lees meer

The deep atmosphere of Jupiter is obscured beneath thick clouds. This causes direct observations to be difficult, and thermochemical equilibrium models fill in the observational gaps. This research uses Galileo…

Authors: Rensen, Miguel, Zilinskas, Louca, Woitke, Helling, Herbort

Bibcode: 2023RemS...15..841R

DOI: 10.3390/rs15030841

Lees meer

In early 2020, an international team set out to investigate trade-wind cumulus clouds and their coupling to the large-scale circulation through the field campaign EUREC4A: ElUcidating the RolE of Clouds-Circulation…

Authors: Bailey, Aemisegger, Villiger, Los, Reverdin, Quiñones Meléndez, Acquistapace, Baranowski, Böck, Bony, Bordsdorff, Coffman, de Szoeke, Diekmann, Dütsch, Ertl, Galewsky, Henze, Makuch, Noone, Quinn, Rösch, Schneider, Schneider, Speich, Stevens, Thompson

Bibcode: 2023ESSD...15..465B

DOI: 10.5194/essd-15-465-2023

Lees meer

Combined lidar and polarimeter retrievals of aerosol, cloud, and ocean microphysical properties involve single-scattering cloud calculations that are time consuming. We create a look-up table to speed up these calculations…

Authors: Chemyakin, Stamnes, Hair, Burton, Bell, Hostetler, Ferrare, Chowdhary, Moore, Ziemba, Crosbie, Robinson, Shook, Thornhill, Winstead, Hu, van Diedenhoven, Cairns

Bibcode: 2023OptL...48...13C

DOI: 10.1364/OL.474282

Lees meer

A framework to infer volume water fraction, soluble fraction and dry size distributions of fine-mode aerosol from multi-angle, multi-spectral polarimetry retrievals of column-averaged ambient aerosol properties is presented. The method…

Authors: van Diedenhoven, Hasekamp, Cairns, Schuster, Stamnes, Shook, Ziemba

Bibcode: 2022AMT....15.7411V

DOI: 10.5194/amt-15-7411-2022

Lees meer

A new method is presented for estimating urban hydroxyl radical (OH) concentrations using the downwind decay of the ratio of nitrogen dioxide over carbon monoxide column-mixing ratios (XNO2/XCO) retrieved from…

Authors: Lama, Houweling, Folkert Boersma, Aben, Denier van der Gon, Krol

Bibcode: 2022ACP....2216053L

DOI: 10.5194/acp-22-16053-2022

Lees meer

The TROPOspheric Monitoring Instrument (TROPOMI), due to its wide swath, performs observations over the ocean in every orbit, enhancing the monitoring capabilities of methane from space. In the short-wave-infrared (SWIR)…

Authors: Lorente, Borsdorff, Martinez-Velarte, Butz, Hasekamp, Wu, Landgraf

Bibcode: 2022AMT....15.6585L

DOI: 10.5194/amt-15-6585-2022

Lees meer

Despite the consensus on the overall downward trend in Amazon forest loss in the previous decade, estimates of yearly carbon emissions from deforestation still vary widely. Estimated carbon emissions are…

Authors: Naus, Domingues, Krol, Luijkx, Gatti, Miller, Gloor, Basu, Correia, Koren, Worden, Flemming, Pétron, Peters

Bibcode: 2022ACP....2214735N

DOI: 10.5194/acp-22-14735-2022

Lees meer

The Tropospheric Monitoring Instrument (TROPOMI) on the Copernicus Sentinel 5 Precursor (S5P) satellite, launched in October 2017, provides a wealth of atmospheric composition data, including total columns of carbon monoxide…

Authors: Inness, Aben, Ades, Borsdorff, Flemming, Jones, Landgraf, Langerock, Nedelec, Parrington, Ribas

Bibcode: 2022ACP....2214355I

DOI: 10.5194/acp-22-14355-2022

Lees meer

We use satellite methane observations from the Tropospheric Monitoring Instrument (TROPOMI), for May 2018 to February 2020, to quantify methane emissions from individual oil and natural gas (O/G) basins in…

Authors: Shen, Gautam, Omara, Zavala-Araiza, Maasakkers, Scarpelli, Lorente, Lyon, Sheng, Varon, Nesser, Qu, Lu, Sulprizio, Hamburg, Jacob

Bibcode: 2022ACP....2211203S

DOI: 10.5194/acp-22-11203-2022

Lees meer

AirCore in situ vertical profiles sample the atmosphere from near the surface to the lower stratosphere, making them ideal for the validation of satellite tropospheric trace gas data. Here we…

Authors: Martínez-Alonso, Deeter, Baier, McKain, Worden, Borsdorff, Sweeney, Aben

Bibcode: 2022AMT....15.4751M

DOI: 10.5194/amt-15-4751-2022

Lees meer

As atmospheric methane concentrations increase at record pace, it is critical to identify individual emission sources with high potential for mitigation. Here, we leverage the synergy between satellite instruments with…

Authors: Maasakkers, Varon, Elfarsdóttir, McKeever, Jervis, Mahapatra, Pandey, Lorente, Borsdorff, Foorthuis, Schuit, Tol, van Kempen, van Hees, Aben

Bibcode: 2022SciA....8N9683M

DOI: 10.1126/sciadv.abn9683

DOI 2: 10.31223/x5n33g

Lees meer

The aim of this paper is to highlight how TROPOspheric Monitoring Instrument (TROPOMI) trace gas data can best be used and interpreted to understand event-based impacts on air quality from…

Authors: Levelt, Stein Zweers, Aben, Bauwens, Borsdorff, De Smedt, Eskes, Lerot, Loyola, Romahn, Stavrakou, Theys, Van Roozendael, Pepijn Veefkind, Verhoelst

Bibcode: 2022ACP....2210319L

DOI: 10.5194/acp-22-10319-2022

Lees meer

Hydroelectric reservoirs can emit significant quantities of methane, particularly through degassing at turbine outlets. Improved understanding of processes affecting hydroelectric reservoir CH4 emissions is thus important as the world economy…

Authors: Delwiche, Harrison, Maasakkers, Sulprizio, Worden, Jacob, Sunderland

Bibcode: 2022JGRG..12706908D

DOI: 10.1029/2022JG006908

Lees meer

We quantify methane emissions in China and the contributions from different sectors by inverse analysis of 2019 TROPOMI satellite observations of atmospheric methane. The inversion uses as a prior estimate…

Authors: Chen, Jacob, Nesser, Sulprizio, Lorente, Varon, Lu, Shen, Qu, Penn, Yu

Bibcode: 2022ACP....2210809C

DOI: 10.5194/acp-22-10809-2022

Lees meer

Multi-angle polarimetric (MAP) measurements can enable detailed characterization of aerosol microphysical and optical properties and improve atmospheric correction in ocean color remote sensing. Advanced retrieval algorithms have been developed to…

Authors: Gao, Knobelspiesse, Franz, Zhai, Sayer, Ibrahim, Cairns, Hasekamp, Hu, Martins, Werdell, Xu

Bibcode: 2022AMT....15.4859G

DOI: 10.5194/amt-15-4859-2022

Lees meer

Focusing on satellite remote sensing of fine particulate matter PM2.5 from space, the polarization crossfire (PCF) strategy has been developed, which includes the PCF satellite suite and the particulate matter…

Authors: Li, Hou, Hong, Fan, Wei, Liu, Lei, Qiao, Hasekamp, Fu, Wang, Dubovik, Qie, Zhang, Xu, Xie, Song, Zou, Luo, Wang, Tu

Bibcode: 2022JQSRT.28608217L

DOI: 10.1016/j.jqsrt.2022.108217

Lees meer

Several single-platform satellite missions have been designed during the past decades in order to retrieve the atmospheric concentrations of anthropogenic greenhouse gases (GHG), initiating worldwide efforts towards better monitoring of…

Authors: Dogniaux, Crevoisier, Gousset, Le Coarer, Ferrec, Croizé, Wu, Hasekamp, Sic, Brooker

Bibcode: 2022AMT....15.4835D

DOI: 10.5194/amt-15-4835-2022

Lees meer

The thermal infrared nadir spectra of IASI (Infrared Atmospheric Sounding Interferometer) are successfully used for retrievals of different atmospheric trace gas profiles. However, these retrievals offer generally reduced information about…

Authors: Schneider, Ertl, Tu, Diekmann, Khosrawi, Röhling, Hase, Dubravica, García, Sepúlveda, Borsdorff, Landgraf, Lorente, Butz, Chen, Kivi, Laemmel, Ramonet, Crevoisier, Pernin, Steinbacher, Meinhardt, Strong, Wunch, Warneke, Roehl, Wennberg, Morino, Iraci, Shiomi,…

Bibcode: 2022AMT....15.4339S

DOI: 10.5194/amt-15-4339-2022

Lees meer

The Sentinel-5 Precursor (S5P) mission was launched on October 2017 and has since provided data with high spatio-temporal resolution using its remote sensing instrument, the TROPOspheric Monitoring Instrument (TROPOMI). The…

Authors: Hachmeister, Schneising, Buchwitz, Lorente, Borsdorff, Burrows, Notholt, Buschmann

Bibcode: 2022AMT....15.4063H

DOI: 10.5194/amt-15-4063-2022

Lees meer

We present a user-friendly, cloud-based facility for quantifying methane emissions with 0.25∘ × 0.3125∘ (≈ 25 km × 25 km) resolution by inverse analysis of satellite observations from the TROPOspheric…

Authors: Varon, Jacob, Sulprizio, Estrada, Downs, Shen, Hancock, Nesser, Qu, Penn, Chen, Lu, Lorente, Tewari, Randles

Bibcode: 2022GMD....15.5787V

DOI: 10.5194/gmd-15-5787-2022

Lees meer

Atmospheric inversions are used to constrain emissions of trace gases using atmospheric mole-fraction measurements. The four-dimensional variational (4DVAR) inversion approach allows optimization of emissions at a higher temporal and spatial…

Authors: Pandey, Houweling, Segers

Bibcode: 2022GMD....15.4555P

DOI: 10.5194/gmd-15-4555-2022

Lees meer

Methane (CH4) is a potent greenhouse gas with a warming potential 84 times that of carbon dioxide (CO2) over a 20-year period. Atmospheric CH4 concentrations have been rising since the…

Authors: Shaw, Allen, Barker, Pitt, Pasternak, Bauguitte, Lee, Bower, Daly, Lunt, Ganesan, Vaughan, Chibesakunda, Lambakasa, Fisher, France, Lowry, Palmer, Metzger, Parker, Gedney, Bateson, Cain, Lorente, Borsdorff, Nisbet

Bibcode: 2022GBioC..3607261S

DOI: 10.1029/2021GB007261

Lees meer

The cloud drop effective radius (Re) of the drop size distribution derived from passive satellite sensors is a key variable used in climate research. Validation of these satellite products has…

Authors: Fu, Di Girolamo, Rauber, McFarquhar, Nesbitt, Loveridge, Hong, van Diedenhoven, Cairns, Alexandrov, Lawson, Woods, Tanelli, Schmidt, Hostetler, Scarino

Bibcode: 2022ACP....22.8259F

DOI: 10.5194/acp-22-8259-2022

Lees meer

The European Copernicus programme plans to install a constellation of multiple polar orbiting satellites (Copernicus Anthropogenic CO2 Monitoring Mission, CO2M mission) for observing atmospheric CO2 content with the aim to…

Authors: Kaminski, Scholze, Rayner, Houweling, Voßbeck, Silver, Lama, Buchwitz, Reuter, Knorr, Chen, Kuhlmann, Brunner, Dellaert, Denier van der Gon, Super, Löscher, Meijer

Bibcode: 2022FrRS....3.7456K

DOI: 10.3389/frsen.2022.887456

Lees meer

This study investigates the contribution of different CH4 sources to the seasonal cycle of δ13C during 2000-2012 by using the TM5 atmospheric transport model, including spatially varying information on isotopic…

Authors: Kangasaho, Tsuruta, Backman, Mäkinen, Houweling, Segers, Krol, Dlugokencky, Michel, White, Aalto

Bibcode: 2022Atmos..13..888K

DOI: 10.3390/atmos13060888

Lees meer

We use optimal estimation (OE) to quantify methane fluxes based on total column CH4 data from the Greenhouse Gases Observing Satellite (GOSAT) and the GEOS-Chem global chemistry transport model. We…

Authors: Worden, Cusworth, Qu, Yin, Zhang, Bloom, Ma, Byrne, Scarpelli, Maasakkers, Crisp, Duren, Jacob

Bibcode: 2022ACP....22.6811W

DOI: 10.5194/acp-22-6811-2022

Lees meer

In this study, we propose a simple method to derive vertically resolved aerosol particle number concentration (N a ) using combined polarimetric and lidar remote sensing observations. This method relies…

Authors: Schlosser, Stamnes, Burton, Cairns, Crosbie, Van Diedenhoven, Diskin, Dmitrovic, Ferrare, Hair, Hostetler, Hu, Liu, Moore, Shingler, Shook, Thornhill, Winstead, Ziemba, Sorooshian

Bibcode: 2022FrRS....3.5332S

DOI: 10.3389/frsen.2022.885332

Lees meer

In this study, an extension on the previously reported status of the COllaborative Carbon Column Observing Network’s (COCCON) calibration procedures incorporating refined methods is presented. COCCON is a global network…

Authors: Alberti, Hase, Frey, Dubravica, Blumenstock, Dehn, Castracane, Surawicz, Harig, Baier, Bès, Bi, Boesch, Butz, Cai, Chen, Crowell, Deutscher, Ene, Franklin, García, Griffith, Grouiez, Grutter, Hamdouni, Houweling, Humpage, Jacobs, Jeong, Joly,…

Bibcode: 2022AMT....15.2433A

DOI: 10.5194/amt-15-2433-2022

Lees meer

We present a top-down approach for aerosol emission estimation from Spectropolarimeter for Planetary Exploration (SPEXone) polarimetric retrievals related to the aerosol amount, size, and absorption using a fixed-lag ensemble Kalman…

Authors: Tsikerdekis, Schutgens, Fu, Hasekamp

Bibcode: 2022GMD....15.3253T

DOI: 10.5194/gmd-15-3253-2022

Lees meer

This paper presents an extended scientific HDO/H2O total column data product from short-wave infrared (SWIR) measurements by the Tropospheric Monitoring Instrument (TROPOMI) including clear-sky and cloudy scenes. The retrieval employs…

Authors: Schneider, Borsdorff, aan de Brugh, Lorente, Aemisegger, Noone, Henze, Kivi, Landgraf

Bibcode: 2022AMT....15.2251S

DOI: 10.5194/amt-15-2251-2022

Lees meer

Improvements in air quality and Earth’s climate predictions require improvements of the aerosol speciation in chemical transport models, using observational constraints. Aerosol speciation (e.g., organic aerosols, black carbon, sulfate, nitrate,…

Authors: Kacenelenbogen, Tan, Burton, Hasekamp, Froyd, Shinozuka, Beyersdorf, Ziemba, Thornhill, Dibb, Shingler, Sorooshian, Espinosa, Martins, Jimenez, Campuzano-Jost, Schwarz, Johnson, Redemann, Schuster

Bibcode: 2022ACP....22.3713K

DOI: 10.5194/acp-22-3713-2022

Lees meer

This study develops the use of spectral total and diffuse irradiance measurements, made from a prototype hyperspectral total-diffuse sunshine pyranometer (SPN-S), to retrieve layer fine-mode aerosol (τaer) and total optical…

Authors: Norgren, Wood, Schmidt, van Diedenhoven, Stamnes, Ziemba, Crosbie, Shook, Kittelman, LeBlanc, Broccardo, Freitag, Reid

Bibcode: 2022AMT....15.1373N

DOI: 10.5194/amt-15-1373-2022

Lees meer

Irregular industrial Carbon monoxide (CO) emissions not only deteriorate global atmospheric environment but also add a large uncertainty to CO emission inventory. This work demonstrates the potentiality of the Tropospheric…

Authors: Tian, Liu, Sun, Borsdorff, Landgraf, Lu, Palm, Notholt

Bibcode: 2022GeoRL..4997312T

DOI: 10.1029/2021GL097312

Lees meer

We quantify and characterize methane emissions from a natural gas well blowout in Louisiana, USA in 2019 using TROPOMI (TROPOspheric Monitoring Instrument) methane observations and VIIRS (Visible Infrared Imaging Radiometer…

Authors: Maasakkers, Omara, Gautam, Lorente, Pandey, Tol, Borsdorff, Houweling, Aben

Bibcode: 2022RSEnv.27012755M

DOI: 10.1016/j.rse.2021.112755

Lees meer

Water vapour is the most abundant natural greenhouse gas in the Earth’s atmosphere, and global data sets are required for meteorological applications and climate research. The Tropospheric Monitoring Instrument (TROPOMI)…

Authors: Küchler, Noël, Bovensmann, Burrows, Wagner, Borger, Borsdorff, Schneider

Bibcode: 2022AMT....15..297K

DOI: 10.5194/amt-15-297-2022

Lees meer

This work demonstrates for the first time the capability of routine Tropospheric Monitoring Instrument (TROPOMI) operations to quantify CO emission rates down to industrial point sources. We have quantified the…

Authors: Tian, Sun, Borsdorff, Liu, Liu, Zhu, Yin, Landgraf

Bibcode: 2022ERL....17a4057T

DOI: 10.1088/1748-9326/ac3b1a

Lees meer

Anthropogenic methane emissions from urban centers are important and addressable, yet remain poorly characterized, and the representativeness of studies from individual cities is unknown. A satellite-based approach provides a pathway…

Authors: Plant, Kort, Murray, Maasakkers, Aben

Bibcode: 2022RSEnv.26812756P

DOI: 10.1016/j.rse.2021.112756

Lees meer

The objective of this study is to derive methane (CH4) emissions from three landfills, which are found to be the most significant CH4 sources in the metropolitan area of Madrid…

Authors: Tu, Hase, Schneider, García, Blumenstock, Borsdorff, Frey, Khosrawi, Lorente, Alberti, Bustos, Butz, Carreño, Cuevas, Curcoll, Diekmann, Dubravica, Ertl, Estruch, Fabián León-Luis, Marrero, Morgui, Ramos, Scharun, Schneider, Sepúlveda, Toledano, Torres

Bibcode: 2022ACP....22..295T

DOI: 10.5194/acp-22-295-2022

Lees meer

We quantify methane emissions and their 2010-2017 trends by sector in the contiguous United States (CONUS), Canada, and Mexico by inverse analysis of in situ (GLOBALVIEWplus CH4 ObsPack) and satellite…

Authors: Lu, Jacob, Wang, Maasakkers, Zhang, Scarpelli, Shen, Qu, Sulprizio, Nesser, Bloom, Ma, Worden, Fan, Parker, Boesch, Gautam, Gordon, Moran, Reuland, Octaviano Villasana, Andrews

Bibcode: 2022ACP....22..395L

DOI: 10.5194/acp-22-395-2022

Lees meer

The TROPOspheric Monitoring Instrument (TROPOMI) provides a daily, spatially resolved (initially 7×7 km2, upgraded to 7×5.6 km2 in August 2019) global dataset of CO columns; however, due to the relative…

Authors: Wizenberg, Strong, Walker, Lutsch, Borsdorff, Landgraf

Bibcode: 2021AMT....14.7707W

DOI: 10.5194/amt-14-7707-2021

Lees meer

Methane emissions in Canada have both anthropogenic and natural sources. Anthropogenic emissions are estimated to be 4.1 Tg a-1 from 2010-2015 in the National Inventory Report submitted to the United…

Authors: Baray, Jacob, Maasakkers, Sheng, Sulprizio, Jones, Bloom, McLaren

Bibcode: 2021ACP....2118101B

DOI: 10.5194/acp-21-18101-2021

Lees meer

Atmospheric methane observations are used to test methane emission inventories as the sum of emissions should correspond to observed methane concentrations. Typically, concentrations are inversely projected to a net flux…

Authors: Cusworth, Bloom, Ma, Miller, Bowman, Yin, Maasakkers, Zhang, Scarpelli, Qu, Jacob, Worden

Bibcode: 2021ComEE...2..242C

DOI: 10.1038/s43247-021-00312-6

Lees meer

The Research Scanning Polarimeter (RSP) is an airborne along-track scanner measuring the polarized and total reflectances in 9 spectral channels. The RSP was a prototype for the Aerosol Polarimetery Sensor…

Authors: Alexandrov, Emde, Van Diedenhoven, Cairns

Bibcode: 2021FrRS....2.1130A

DOI: 10.3389/frsen.2021.791130

Lees meer

In this study, the GOSAT Proxy Retrieval (v9.0) data product of column-averaged dry-air mole fractions of atmospheric methane (XCH4) for the period 2009-2019 was analyzed to detect methane (CH4) trends…

Authors: Islam, Jackson, Sweeney, McKain, Frankenberg, Aben, Parker, Boesch, Wunch

Bibcode: 2021JGRD..12633948I

DOI: 10.1029/2020JD033948

Lees meer

Surface observations have recorded large and incompletely understood changes to atmospheric methane (CH4) this century. However, their ability to reveal the responsible surface sources and sinks is limited by their…

Authors: Palmer, Feng, Lunt, Parker, Bösch, Lan, Lorente, Borsdorff

Bibcode: 2021RSPTA.37910106P

DOI: 10.1098/rsta.2021.0106

Lees meer

China’s anthropogenic methane emissions are the largest of any country in the world. A recent study using atmospheric observations suggested that recent policies aimed at reducing emissions of methane due…

Authors: Sheng, Tunnicliffe, Ganesan, Maasakkers, Shen, Prinn, Song, Zhang, Scarpelli, Anthony Bloom, Rigby, Manning, Parker, Boesch, Lan, Zhang, Zhuang, Lu

Bibcode: 2021ERL....16j4018S

DOI: 10.1088/1748-9326/ac24d1

Lees meer

Wetland methane (CH4) emissions comprise about one-third of the global CH4 source. The latitudinal distribution and climate sensitivity of wetland CH4 fluxes are the key determinants of the global CH4-climate…

Authors: Ma, Worden, Bloom, Zhang, Poulter, Cusworth, Yin, Pandey, Maasakkers, Lu, Shen, Sheng, Frankenberg, Miller, Jacob

Bibcode: 2021AGUA....200408M

DOI: 10.1029/2021AV000408

Lees meer

We evaluate the global atmospheric methane column retrievals from the new TROPOMI satellite instrument and apply them to a global inversion of methane sources for 2019 at 2∘ × 2.5∘…

Authors: Qu, Jacob, Shen, Lu, Zhang, Scarpelli, Nesser, Sulprizio, Maasakkers, Bloom, Worden, Parker, Delgado

Bibcode: 2021ACP....2114159Q

DOI: 10.5194/acp-21-14159-2021

Lees meer

Southeast Australia experienced intensive and geographically extensive wildfires during the 2019-2020 summer season1,2. The fires released substantial amounts of carbon dioxide into the atmosphere3. However, existing emission estimates based on…

Authors: van der Velde, van der Werf, Houweling, Maasakkers, Borsdorff, Landgraf, Tol, van Kempen, van Hees, Hoogeveen, Veefkind, Aben

Bibcode: 2021Natur.597..366V

DOI: 10.1038/s41586-021-03712-y

Lees meer

The Sentinel-5 Precursor (S5P) mission with the TROPOspheric Monitoring Instrument (TROPOMI) on board has been measuring solar radiation backscattered by the Earth’s atmosphere and surface since its launch on 13…

Authors: Sha, Langerock, Blavier, Blumenstock, Borsdorff, Buschmann, Dehn, De Mazière, Deutscher, Feist, García, Griffith, Grutter, Hannigan, Hase, Heikkinen, Hermans, Iraci, Jeseck, Jones, Kivi, Kumps, Landgraf, Lorente, Mahieu, Makarova, Mellqvist, Metzger, Morino,…

Bibcode: 2021AMT....14.6249S

DOI: 10.5194/amt-14-6249-2021

Lees meer

Global high-resolution observations of atmospheric composition from satellites can greatly improve our understanding of surface emissions through inverse analyses. Variational inverse methods can optimize surface emissions at any resolution but…

Authors: Nesser, Jacob, Maasakkers, Scarpelli, Sulprizio, Zhang, Rycroft

Bibcode: 2021AMT....14.5521N

DOI: 10.5194/amt-14-5521-2021

Lees meer

The high variability of atmospheric aerosol in space and time poses significant challenges for aerosol observation and simulation, as well as for the design of aerosol monitoring systems. Multi-Angular Polarimeters…

Authors: Chen, Dubovik, Schuster, Fuertes, Meijer, Landgraf, Karol, Li

Bibcode: 2021JQSRT.26807627C

DOI: 10.1016/j.jqsrt.2021.107627

Lees meer

NASA’s Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) mission, scheduled for launch in the timeframe of 2023, will carry a hyperspectral scanning radiometer named the Ocean Color Instrument (OCI) and two…

Authors: Gao, Franz, Knobelspiesse, Zhai, Martins, Burton, Cairns, Ferrare, Gales, Hasekamp, Hu, Ibrahim, McBride, Puthukkudy, Werdell, Xu

Bibcode: 2021AMT....14.4083G

DOI: 10.5194/amt-14-4083-2021

Lees meer

Global measurements of absorbing aerosol optical depth (AAOD) are scarce and mostly provided by the ground network AERONET (AErosol RObotic NETwork). In recent years, several satellite products of AAOD have…

Authors: Schutgens, Dubovik, Hasekamp, Torres, Jethva, Leonard, Litvinov, Redemann, Shinozuka, de Leeuw, Kinne, Popp, Schulz, Stier

Bibcode: 2021ACP....21.6895S

DOI: 10.5194/acp-21-6895-2021

Lees meer

In this study, we present a novel monitoring methodology that combines satellite retrievals and forecasts to detect local CH4 concentration anomalies worldwide. These anomalies are caused by rapidly changing anthropogenic…

Authors: Barré, Aben, Agustí-Panareda, Balsamo, Bousserez, Dueben, Engelen, Inness, Lorente, McNorton, Peuch, Radnoti, Ribas

Bibcode: 2021ACP....21.5117B

DOI: 10.5194/acp-21-5117-2021

Lees meer

We conduct a global inverse analysis of 2010-2018 GOSAT observations to better understand the factors controlling atmospheric methane and its accelerating increase over the 2010-2018 period. The inversion optimizes anthropogenic…

Authors: Zhang, Jacob, Lu, Maasakkers, Scarpelli, Sheng, Shen, Qu, Sulprizio, Chang, Bloom, Ma, Worden, Parker, Boesch

Bibcode: 2021ACP....21.3643Z

DOI: 10.5194/acp-21-3643-2021

Lees meer

We use satellite (GOSAT) and in situ (GLOBALVIEWplus CH4 ObsPack) observations of atmospheric methane in a joint global inversion of methane sources, sinks, and trends for the 2010-2017 period. The…

Authors: Lu, Jacob, Zhang, Maasakkers, Sulprizio, Shen, Qu, Scarpelli, Nesser, Yantosca, Sheng, Andrews, Parker, Boesch, Bloom, Ma

Bibcode: 2021ACP....21.4637L

DOI: 10.5194/acp-21-4637-2021

Lees meer

We use 2010-2015 Greenhouse Gases Observing Satellite (GOSAT) observations of atmospheric methane columns over North America in a high-resolution inversion of methane emissions, including contributions from different sectors and their…

Authors: Maasakkers, Jacob, Sulprizio, Scarpelli, Nesser, Sheng, Zhang, Lu, Bloom, Bowman, Worden, Parker

Bibcode: 2021ACP....21.4339M

DOI: 10.5194/acp-21-4339-2021

Lees meer

The COVID-19 pandemic resulted in reduced anthropogenic carbon dioxide (CO2) emissions during 2020 in large parts of the world. To investigate whether a regional-scale reduction of anthropogenic CO2 emissions during…

Authors: Buchwitz, Reuter, Noël, Bramstedt, Schneising, Hilker, Fuentes Andrade, Bovensmann, Burrows, Di Noia, Boesch, Wu, Landgraf, Aben, Retscher, O'Dell, Crisp

Bibcode: 2021AMT....14.2141B

DOI: 10.5194/amt-14-2141-2021

Lees meer

A data assimilation system for aerosol, based on an ensemble Kalman filter, has been developed for the ECHAM – Hamburg Aerosol Model (ECHAM-HAM) global aerosol model and applied to POLarization…

Authors: Tsikerdekis, Schutgens, Hasekamp

Bibcode: 2021ACP....21.2637T

DOI: 10.5194/acp-21-2637-2021

Lees meer

We developed a fast and accurate polynomial based atmospheric correction (POLYAC) algorithm for hyperspectral radiometric measurements, which parameterizes the atmospheric path radiances using aerosol properties retrieved from co-located multi-wavelength multi-angle…

Authors: Hannadige, Zhai, Gao, Franz, Hu, Knobelspiesse, Jeremy Werdell, Ibrahim, Cairns, Hasekamp

Bibcode: 2021OExpr..29.4504H

DOI: 10.1364/OE.408467

Lees meer

East Africa is a key location for wetland emissions of methane (CH4), driven by variations in rainfall that are in turn influenced by sea-surface temperature gradients over the Indian Ocean.…

Authors: Lunt, Palmer, Lorente, Borsdorff, Landgraf, Parker, Boesch

Bibcode: 2021ERL....16b4021L

DOI: 10.1088/1748-9326/abd8fa

Lees meer

Atmospheric aerosols have been known to be a major source of uncertainties in CO2 concentrations retrieved from space. In this study, we investigate the added value of multi-angle polarimeter (MAP)…

Authors: Rusli, Hasekamp, aan de Brugh, Fu, Meijer, Landgraf

Bibcode: 2021AMT....14.1167R

DOI: 10.5194/amt-14-1167-2021

Lees meer

We use atmospheric observations to quantify methane (CH4) emissions from Mexico’s most important onshore and offshore oil and gas production regions which account for 95% of oil production and 78%…

Authors: Zavala-Araiza, Omara, Gautam, Smith, Pandey, Aben, Almanza-Veloz, Conley, Houweling, Kort, Maasakkers, Molina, Pusuluri, Scarpelli, Schwietzke, Shen, Zavala, Hamburg

Bibcode: 2021ERL....16b4019Z

DOI: 10.1088/1748-9326/abceeb

Lees meer

Coal is a principal source of energy and the combustion of coal supplies around one-third of the global electricity generation. Coal mines are also an important source of CH4 emissions,…

Authors: Madhuanand, Sadavarte, Visschedijk, Denier Van Der Gon, Aben, Osei

Bibcode: 2021EuJRS..54..296M

DOI: 10.1080/22797254.2021.1920341

Lees meer

Measurements of atmospheric column-averaged dry-air mole fractions of carbon dioxide (XCO2), methane (XCH4), and carbon monoxide (XCO) have been collected across the Pacific Ocean during the Measuring Ocean REferences 2…

Authors: Knapp, Kleinschek, Hase, Agustí-Panareda, Inness, Barré, Landgraf, Borsdorff, Kinne, Butz

Bibcode: 2021ESSD...13..199K

DOI: 10.5194/essd-13-199-2021

Lees meer

The global fire emission inventories depend on ground and airborne measurements of species-specific emission factors (EFs), which translate dry matter losses due to fires to actual trace gas and aerosol…

Authors: van der Velde, van der Werf, Houweling, Eskes, Pepijn Veefkind, Borsdorff, Aben

Bibcode: 2021ACP....21..597V

DOI: 10.5194/acp-21-597-2021

Lees meer

Quantifying natural geological sources of methane (CH4) allows to improve the assessment of anthropogenic emissions to the atmosphere from fossil fuel industries. The global CH4 flux of geological gas is,…

Authors: Mazzini, Sciarra, Etiope, Sadavarte, Houweling, Pandey, Husein

Bibcode: 2021NatSR..11.4138M

DOI: 10.1038/s41598-021-83369-9

Lees meer

The TROPOspheric Monitoring Instrument (TROPOMI) on board the Sentinel 5 Precursor (S5-P) satellite provides methane (CH4) measurements with high accuracy and exceptional temporal and spatial resolution and sampling. TROPOMI CH4…

Authors: Lorente, Borsdorff, Butz, Hasekamp, aan de Brugh, Schneider, Wu, Hase, Kivi, Wunch, Pollard, Shiomi, Deutscher, Velazco, Roehl, Wennberg, Warneke, Landgraf

Bibcode: 2021AMT....14..665L

DOI: 10.5194/amt-14-665-2021

Lees meer

The TROPOspheric Monitoring Instrument (TROPOMI) provides observations of atmospheric methane (CH4) at an unprecedented combination of high spatial resolution and daily global coverage. Hu et al. (2018) reported unexpectedly large…

Authors: Pandey, Houweling, Lorente, Borsdorff, Tsivlidou, Bloom, Poulter, Zhang, Aben

Bibcode: 2021BGeo...18..557P

DOI: 10.5194/bg-18-557-2021

Lees meer

The Twomey effect describes the radiative forcing associated with a change in cloud albedo due to an increase in anthropogenic aerosol emissions. It is driven by the perturbation in cloud…

Authors: Quaas, Arola, Cairns, Christensen, Deneke, Ekman, Feingold, Fridlind, Gryspeerdt, Hasekamp, Li, Lipponen, Ma, Mülmenstädt, Nenes, Penner, Rosenfeld, Schrödner, Sinclair, Sourdeval, Stier, Tesche, van Diedenhoven, Wendisch

Bibcode: 2020ACP....2015079Q

DOI: 10.5194/acp-20-15079-2020

Lees meer

The Tropospheric Monitoring Instrument (TROPOMI) on the ESA Copernicus Sentinel-5 satellite (S5-P) measures carbon monoxide (CO) total column concentrations as one of its primary targets. In this study, we analyze…

Authors: Borsdorff, García Reynoso, Maldonado, Mar-Morales, Stremme, Grutter, Landgraf

Bibcode: 2020ACP....2015761B

DOI: 10.5194/acp-20-15761-2020

Lees meer

This work documents and evaluates the tropospheric gas-phase chemical mechanism MOGUNTIA in the three-dimensional chemistry transport model TM5-MP. Compared to the modified CB05 (mCB05) chemical mechanism previously used in the…

Authors: Myriokefalitakis, Daskalakis, Gkouvousis, Hilboll, van Noije, Williams, Le Sager, Huijnen, Houweling, Bergman, Rasmus Nüß, Vrekoussis, Kanakidou, Krol

Bibcode: 2020GMD....13.5507M

DOI: 10.5194/gmd-13-5507-2020

Lees meer

This study investigates the use of co-located nitrogen dioxide (NO2) and carbon monoxide (CO) retrievals from the TROPOMI satellite to improve the quantification of burning efficiency and emission factors (EFs)…

Authors: Lama, Houweling, Folkert Boersma, Eskes, Aben, Denier van der Gon, Krol, Dolman, Borsdorff, Lorente

Bibcode: 2020ACP....2010295L

DOI: 10.5194/acp-20-10295-2020

Lees meer

We have analyzed TROPOspheric Monitoring Instrument (TROPOMI) carbon monoxide (CO) data acquired between November 2017 and March 2019 with respect to other satellite (MOPITT, Measurement Of Pollution In The Troposphere)…

Authors: Martínez-Alonso, Deeter, Worden, Borsdorff, Aben, Commane, Daube, Francis, George, Landgraf, Mao, McKain, Wofsy

Bibcode: 2020AMT....13.4841M

DOI: 10.5194/amt-13-4841-2020

Lees meer

We compare the atmospheric column-averaged dry-air mole fractions of carbon dioxide (XCO2) and methane (XCH4) measured with a pair of COllaborative Carbon Column Observing Network (COCCON) spectrometers at Kiruna and…

Authors: Tu, Hase, Blumenstock, Kivi, Heikkinen, Sha, Raffalski, Landgraf, Lorente, Borsdorff, Chen, Dietrich, Chen

Bibcode: 2020AMT....13.4751T

DOI: 10.5194/amt-13-4751-2020

Lees meer

Understanding and quantifying the global methane (CH4) budget is important for assessing realistic pathways to mitigate climate change. Atmospheric emissions and concentrations of CH4 continue to increase, making CH4 the…

Authors: Saunois, Stavert, Poulter, Bousquet, Canadell, Jackson, Raymond, Dlugokencky, Houweling, Patra, Ciais, Arora, Bastviken, Bergamaschi, Blake, Brailsford, Bruhwiler, Carlson, Carrol, Castaldi, Chandra, Crevoisier, Crill, Covey, Curry, Etiope, Frankenberg, Gedney, Hegglin, Höglund-Isaksson,…

Bibcode: 2020ESSD...12.1561S

DOI: 10.5194/essd-12-1561-2020

Lees meer

Methane (CH4) is an important greenhouse gas, and its atmospheric budget is determined by interacting sources and sinks in a dynamic global environment. Methane observations indicate that after almost a…

Authors: Zimmermann, Brenninkmeijer, Pozzer, Jöckel, Winterstein, Zahn, Houweling, Lelieveld

Bibcode: 2020ACP....20.5787Z

DOI: 10.5194/acp-20-5787-2020

Lees meer

Satellite retrievals of column-averaged dry-air mole fractions of carbon dioxide (CO2) and methane (CH4), denoted XCO2 and XCH4, respectively, have been used in recent years to obtain information on natural…

Authors: Reuter, Buchwitz, Schneising, Noël, Bovensmann, Burrows, Boesch, Di Noia, Anand, Parker, Somkuti, Wu, Hasekamp, Aben, Kuze, Suto, Shiomi, Yoshida, Morino, Crisp, O'Dell, Notholt, Petri, Warneke, Velazco, Deutscher, Griffith, Kivi, Pollard,…

Bibcode: 2020AMT....13..789R

DOI: 10.5194/amt-13-789-2020

Lees meer

In this paper, we present aerosol retrieval results from the ACEPOL (Aerosol Characterization from Polarimeter and Lidar) campaign, which was a joint initiative between NASA and SRON – the Netherlands…

Authors: Fu, Hasekamp, Rietjens, Smit, Di Noia, Cairns, Wasilewski, Diner, Seidel, Xu, Knobelspiesse, Gao, da Silva, Burton, Hostetler, Hair, Ferrare

Bibcode: 2020AMT....13..553F

DOI: 10.5194/amt-13-553-2020

Lees meer

Verifying anthropogenic carbon dioxide (CO2) emissions globally is essential to inform about the progress of institutional efforts to mitigate anthropogenic climate forcing. To monitor localized emission sources, spectroscopic satellite sensors…

Authors: Wilzewski, Roiger, Strandgren, Landgraf, Feist, Velazco, Deutscher, Morino, Ohyama, Té, Kivi, Warneke, Notholt, Dubey, Sussmann, Rettinger, Hase, Shiomi, Butz

Bibcode: 2020AMT....13..731W

DOI: 10.5194/amt-13-731-2020

Lees meer

In light of the proposed space segment of Europe’s future CO2 monitoring system, we investigate the spectral resolution of the CO2 spectrometer, which measures earthshine radiance in the three relevant…

Authors: Wu, aan de Brugh, Meijer, Sierk, Hasekamp, Butz, Landgraf

Bibcode: 2020AMT....13..713W

DOI: 10.5194/amt-13-713-2020

Lees meer

Production of oil and natural gas in North America is at an all-time high due to the development and use of horizontal drilling and hydraulic fracturing. Methane emissions associated with…

Authors: de Gouw, Veefkind, Roosenbrand, Dix, Lin, Landgraf, Levelt

Bibcode: 2020NatSR..10.1379D

DOI: 10.1038/s41598-020-57678-4

Lees meer

Global measurements of atmospheric water vapour isotopologues aid to better understand the hydrological cycle and improve global circulation models. This paper presents a new data set of vertical column densities…

Authors: Schneider, Borsdorff, aan de Brugh, Aemisegger, Feist, Kivi, Hase, Schneider, Landgraf

Bibcode: 2020AMT....13...85S

DOI: 10.5194/amt-13-85-2020

Lees meer

The 2015 Paris Agreement of the United Nations Framework Convention on Climate Change aims to keep global average temperature increases well below 2 °C of preindustrial levels in the Year…

Authors: Ganesan, Schwietzke, Poulter, Arnold, Lan, Rigby, Vogel, van der Werf, Janssens-Maenhout, Boesch, Pandey, Manning, Jackson, Nisbet, Manning

Bibcode: 2019GBioC..33.1475G

DOI: 10.1029/2018GB006065

Lees meer

Carbon monoxide (CO) is an important atmospheric constituent affecting air quality, and methane (CH4) is the second most important greenhouse gas contributing to human-induced climate change. Detailed and continuous observations…

Authors: Schneising, Buchwitz, Reuter, Bovensmann, Burrows, Borsdorff, Deutscher, Feist, Griffith, Hase, Hermans, Iraci, Kivi, Landgraf, Morino, Notholt, Petri, Pollard, Roche, Shiomi, Strong, Sussmann, Velazco, Warneke, Wunch

Bibcode: 2019AMT....12.6771S

DOI: 10.5194/amt-12-6771-2019

Lees meer

Retrievals of methane isotopologues have the potential to differentiate between natural and anthropogenic methane sources types, which can provide much needed information about the current global methane budget. We investigate…

Authors: Malina, Hu, Landgraf, Veihelmann

Bibcode: 2019AMT....12.6273M

DOI: 10.5194/amt-12-6273-2019

Lees meer

Anthropogenic aerosol emissions lead to an increase in the amount of cloud condensation nuclei and consequently an increase in cloud droplet number concentration and cloud albedo. The corresponding negative radiative…

Authors: Hasekamp, Gryspeerdt, Quaas

Bibcode: 2019NatCo..10.5405H

DOI: 10.1038/s41467-019-13372-2

Lees meer

Passive remote sensing of atmospheric carbon dioxide uses spectroscopic measurements of sunlight backscattered by the Earth’s surface and atmosphere. The current state-of-the-art retrieval methods use three different spectral bands, the…

Authors: Wu, Hasekamp, Hu, aan de Brugh, Landgraf, Butz, Aben

Bibcode: 2019AMT....12.6049W

DOI: 10.5194/amt-12-6049-2019

Lees meer

The Plankton, Aerosol, Clouds, ocean Ecosystem (PACE) mission presents new opportunities and new challenges in applying observations of two complementary multi-angle polarimeters for the space-based retrieval of global aerosol properties.Aerosol…

Authors: Purdy, David, Sikder, Reager, Chandanpurkar, Jones, Matin

Bibcode: 2019FrEnS...700155P

DOI: 10.3389/fenvs.2019.00155

Lees meer

On 13 October 2017, the Tropospheric Monitoring Instrument (TROPOMI) was launched on the Copernicus Sentinel-5 Precursor satellite in a sun-synchronous orbit. One of the mission’s operational data products is the…

Authors: Borsdorff, aan de Brugh, Schneider, Lorente, Birk, Wagner, Kivi, Hase, Feist, Sussmann, Rettinger, Wunch, Warneke, Landgraf

Bibcode: 2019AMT....12.5443B

DOI: 10.5194/amt-12-5443-2019

Lees meer

The lack of a comprehensive, up-to-date emission inventory for the Himalayan region is a major challenge in understanding the extensive regional air pollution, including its causes, impacts and mitigation pathways.…

Authors: Sadavarte, Rupakheti, Bhave, Shakya, Lawrence

Bibcode: 2019ACP....1912953S

DOI: 10.5194/acp-19-12953-2019

Lees meer

The Plankton, Aerosol, Clouds, ocean Ecosystem (PACE) mission presents new opportunities and new challenges in applying observations of two complementary multi-angle polarimeters for the space-based retrieval of global aerosol properties.…

Authors: Remer, Knobelspiesse, Zhai, Xu, Kalashnikova, Chowdhary, Hasekamp, Dubovik, Wu, Ahmad, Boss, Cairns, Coddington, Davis, Dierssen, Diner, Franz, Frouin, Gao, Ibrahim, Levy, Martins, Omar, Torres

Bibcode: 2019FrEnS...7...94R

DOI: 10.3389/fenvs.2019.00094

Lees meer

The Plankton, Aerosol, Clouds, ocean Ecosystem (PACE) mission presents new opportunities and new challenges in applying observations of two complementary multi-angle polarimeters for the space-based retrieval of global aerosol properties.Aerosol…

Authors: Remer, Knobelspiesse, Zhai, Xu, Kalashnikova, Chowdhary, Hasekamp, Dubovik, Wu, Ahmad, Boss, Cairns, Coddington, Davis, Dierssen, Diner, Franz, Frouin, Gao, Ibrahim, Levy, Martins, Omar, Torres

Bibcode: 2019FrEnS...700094R

DOI: 10.3389/fenvs.2019.00094

Lees meer

We use 2010-2015 observations of atmospheric methane columns from the GOSAT satellite instrument in a global inverse analysis to improve estimates of methane emissions and their trends over the period,…

Authors: Maasakkers, Jacob, Sulprizio, Scarpelli, Nesser, Sheng, Zhang, Hersher, Bloom, Bowman, Worden, Janssens-Maenhout, Parker

Bibcode: 2019ACP....19.7859M

DOI: 10.5194/acp-19-7859-2019

Lees meer

Passive ocean color images have provided a sustained synoptic view of the distribution of ocean optical properties and color and biogeochemical parameters for the past 20-plus years. These images have…

Authors: Jamet, Ibrahim, Ahmad, Angelini, Babin, Behrenfeld, Boss, Cairns, Churnside, Chowdhary, Davis, Dionisi, Duforê t-Gaurier, Franz, Frouin, Gao, Gray, Hasekamp, He, Hostetler, Kalashnikova, Knobelspiesse, Lacour, Loisel, Martins, Rehm, Remer, Sanhaj, Stamnes,…

Bibcode: 2019FrMaS...600251J

DOI: 10.3389/fmars.2019.00251

Lees meer

Passive ocean color images have provided a sustained synoptic view of the distribution of ocean optical properties and color and biogeochemical parameters for the past 20-plus years. These images have…

Authors: Jamet, Ibrahim, Ahmad, Angelini, Babin, Behrenfeld, Boss, Cairns, Churnside, Chowdhary, Davis, Dionisi, Duforêt-Gaurier, Franz, Frouin, Gao, Gray, Hasekamp, He, Hostetler, Kalashnikova, Knobelspiesse, Lacour, Loisel, Martins, Rehm, Remer, Sanhaj, Stamnes, Stamnes,…

Bibcode: 2019FrMaS...6..251J

DOI: 10.3389/fmars.2019.00251

Lees meer

SPEXone is a Multi-Angle Polarimeter instrument that is baselined to fly on the NASA Plankton, Aerosol, Cloud, and ocean Ecosystem (PACE) mission, to be launched in 2022. It will perform…

Authors: Hasekamp, Fu, Rusli, Wu, Di Noia, Brugh, Landgraf, Martijn Smit, Rietjens, van Amerongen

Bibcode: 2019JQSRT.227..170H

DOI: 10.1016/j.jqsrt.2019.02.006

Lees meer

Methane (CH4) is a potent greenhouse gas with a large temporal variability. To increase the spatial coverage, methane observations are increasingly made from satellites that retrieve the column-averaged dry air…

Authors: Kivimäki, Lindqvist, Hakkarainen, Laine, Sussmann, Tsuruta, Detmers, Deutscher, Dlugokencky, Hase, Hasekamp, Kivi, Morino, Notholt, Pollard, Roehl, Schneider, Sha, Velazco, Warneke, Wunch, Yoshida, Tamminen

Bibcode: 2019RemS...11..882K

DOI: 10.3390/rs11070882

Lees meer

The Tropospheric Monitoring Instrument (TROPOMI) on the Sentinel-5 Precursor satellite provides measurements of carbon monoxide (CO) total column concentrations based on earthshine radiance measurements in the 2.3 µm spectral range…

Authors: Borsdorff, aan de Brugh, Pandey, Hasekamp, Aben, Houweling, Landgraf

Bibcode: 2019ACP....19.3579B

DOI: 10.5194/acp-19-3579-2019

Lees meer

The TROPOspheric Monitoring Instrument (TROPOMI), launched 13 October 2017, has been measuring carbon monoxide (CO) concentrations in the Earth’s atmosphere since early November 2017. In the first measurements, TROPOMI was…

Authors: Dekker, Houweling, Pandey, Krol, Röckmann, Borsdorff, Landgraf, Aben

Bibcode: 2019ACP....19.3433D

DOI: 10.5194/acp-19-3433-2019

Lees meer

This paper describes a neural network algorithm for the estimation of liquid water cloud optical properties from the Polarization and Directionality of Earth’s Reflectances-3 (POLDER-3) instrument aboard the Polarization &…

Authors: Di Noia, Hasekamp, van Diedenhoven, Zhang

Bibcode: 2019AMT....12.1697D

DOI: 10.5194/amt-12-1697-2019

Lees meer

Polarimetry is one of the most promising types of remote sensing for improved characterization of atmospheric aerosol. Indeed, aerosol particles constitute a highly variable atmospheric component characterized by a large…

Authors: Dubovik, Li, Mishchenko, Tanré, Karol, Bojkov, Cairns, Diner, Espinosa, Goloub, Gu, Hasekamp, Hong, Hou, Knobelspiesse, Landgraf, Li, Litvinov, Liu, Lopatin, Marbach, Maring, Martins, Meijer, Milinevsky, Mukai, Parol, Qiao, Remer, Rietjens,…

Bibcode: 2019JQSRT.224..474D

DOI: 10.1016/j.jqsrt.2018.11.024

Lees meer

The annual premature mortality in India attributed to exposure to ambient particulate matter (PM2.5) exceeds 1 million (Cohen et al., 2017, https://doi.org/10.1016/S0140-6736(17)30505-6). Studies have estimated sector-specific premature mortality from ambient…

Authors: David, Ravishankara, Kodros, Pierce, Venkataraman, Sadavarte

Bibcode: 2019GHeal...3....2D

DOI: 10.1029/2018GH000169

Lees meer

Anthropogenic methane emissions from China are likely greater than in any other country in the world. The largest fraction of China’s anthropogenic emissions is attributable to coal mining, but these…

Authors: Miller, Michalak, Detmers, Hasekamp, Bruhwiler, Schwietzke

Bibcode: 2019NatCo..10..303M

DOI: 10.1038/s41467-018-07891-7

Lees meer

Polarimeter retrievals can provide detailed and accurate information on aerosol microphysical and optical properties. The SRON aerosol algorithm is one of the few retrieval approaches that can fully exploit this…

Authors: Fu, Hasekamp

Bibcode: 2018AMT....11.6627F

DOI: 10.5194/amt-11-6627-2018

Lees meer

On 13 October 2017, the European Space Agency (ESA) successfully launched the Sentinel-5 Precursor satellite with the Tropospheric Monitoring Instrument (TROPOMI) as its single payload. TROPOMI is the first of…

Authors: Borsdorff, aan de Brugh, Hu, Hasekamp, Sussmann, Rettinger, Hase, Gross, Schneider, Garcia, Stremme, Grutter, Feist, Arnold, De Mazière, Sha, Pollard, Kiel, Roehl, Wennberg, Toon, Landgraf

Bibcode: 2018AMT....11.5507B

DOI: 10.5194/amt-11-5507-2018

Lees meer

The Tropospheric Monitoring Instrument (TROPOMI) is the single instrument on board the ESA Copernicus Sentinel-5 Precursor satellite. TROPOMI is a nadir-viewing imaging spectrometer with bands in the ultraviolet and visible,…

Authors: van Hees, Tol, Cadot, Krijger, Persijn, van Kempen, Snel, Aben, Hoogeveen

Bibcode: 2018AMT....11.3917V

DOI: 10.5194/amt-11-3917-2018

Lees meer

A new data set of vertical column densities of the water vapour isotopologues H2O and HDO from the SCanning Imaging Absorption spectroMeter for Atmospheric CHartographY (SCIAMACHY) instrument for the whole…

Authors: Schneider, Borsdorff, aan de Brugh, Hu, Landgraf

Bibcode: 2018AMT....11.3339S

DOI: 10.5194/amt-11-3339-2018

Lees meer

This paper discusses the retrieval of atmospheric methane profiles from the thermal infrared band of the Japanese Greenhouse Gases Observing Satellite (GOSAT) between 1210 and 1310 cm-1, using the RemoTeC…

Authors: de Lange, Landgraf

Bibcode: 2018AMT....11.3815D

DOI: 10.5194/amt-11-3815-2018

Lees meer

In the perspective of the upcoming TROPOMI Sentinel-5 Precursor carbon monoxide data product, we discuss the benefit of using CO total column retrievals from cloud-contaminated SCIAMACHY 2.3 µm shortwave infrared…

Authors: Borsdorff, Andrasec, aan de Brugh, Hu, Aben, Landgraf

Bibcode: 2018AMT....11.2553B

DOI: 10.5194/amt-11-2553-2018

Lees meer

In this study we present the retrieval of the column-averaged dry air mole fraction of carbon dioxide (XCO2) from the Orbiting Carbon Observatory-2 (OCO-2) satellite observations using the RemoTeC algorithm,…

Authors: Wu, Hasekamp, Hu, Landgraf, Butz, aan de Brugh, Aben, Pollard, Griffith, Feist, Koshelev, Hase, Toon, Ohyama, Morino, Notholt, Shiomi, Iraci, Schneider, de Mazière, Sussmann, Kivi, Warneke, Goo, Té

Bibcode: 2018AMT....11.3111W

DOI: 10.5194/amt-11-3111-2018

Lees meer

The representation of aerosol-cloud interaction in global climate models (GCMs) remains a large source of uncertainty in climate projections. Due to its complexity, precipitation evaporation is either ignored or taken…

Authors: de Bruine, Krol, van Noije, Le Sager, Röckmann

Bibcode: 2018GMD....11.1443D

DOI: 10.5194/gmd-11-1443-2018

Lees meer

Short-term variations in the atmospheric environment over polar regions are attracting increasing attention with respect to the reliable analysis of ozone loss. Balloon-borne remote sensing instruments with good vertical resolution…

Authors: Xu, Schreier, Wetzel, de Lange, Birk, Trautmann, Doicu, Wagner

Bibcode: 2018RemS...10..315X

DOI: 10.3390/rs10020315

Lees meer

In previous work, we derived the adjoint method as a computationally efficient path to three-dimensional (3D) retrievals of clouds and aerosols. In this paper we will demonstrate the use of…

Authors: Martin, Hasekamp

Bibcode: 2018JQSRT.204..215M

DOI: 10.1016/j.jqsrt.2017.09.031

Lees meer

Several viable but conflicting explanations have been proposed to explain the recent 8 p.p.b. per year increase in atmospheric methane after 2006, equivalent to net emissions increase of 25 Tg…

Authors: Worden, Bloom, Pandey, Jiang, Worden, Walker, Houweling, Röckmann

Bibcode: 2017NatCo...8.2227W

DOI: 10.1038/s41467-017-02246-0

Lees meer

The growth of mega-cities leads to air quality problems directly affecting the citizens. Satellite measurements are becoming of higher quality and quantity, which leads to more accurate satellite retrievals of…

Authors: Dekker, Houweling, Aben, Röckmann, Krol, Martínez-Alonso, Deeter, Worden

Bibcode: 2017ACP....1714675D

DOI: 10.5194/acp-17-14675-2017

Lees meer

Carbon dioxide (CO2) and methane (CH4) are the two most important greenhouse gases emitted by mankind. Better knowledge of the surface sources and sinks of these Essential Climate Variables (ECVs)…

Authors: Buchwitz, Reuter, Schneising, Hewson, Detmers, Boesch, Hasekamp, Aben, Bovensmann, Burrows, Butz, Chevallier, Dils, Frankenberg, Heymann, Lichtenberg, De Mazière, Notholt, Parker, Warneke, Zehner, Griffith, Deutscher, Kuze, Suto, Wunch

Bibcode: 2017RSEnv.203..276B

DOI: 10.1016/j.rse.2016.12.027

Lees meer

In this paper, an algorithm for the retrieval of aerosol and land surface properties from airborne spectropolarimetric measurements – combining neural networks and an iterative scheme based on Phillips-Tikhonov regularization…

Authors: Di Noia, Hasekamp, Wu, van Diedenhoven, Cairns, Yorks

Bibcode: 2017AMT....10.4235D

DOI: 10.5194/amt-10-4235-2017

Lees meer

The MEthane Remote sensing Lidar missioN (MERLIN) aims at demonstrating the spaceborne active measurement of atmospheric methane, a potent greenhouse gas, based on an Integrated Path Differential Absorption (IPDA) nadir-viewing…

Authors: Ehret, Bousquet, Pierangelo, Alpers, Millet, Abshire, Bovensmann, Burrows, Chevallier, Ciais, Crevoisier, Fix, Flamant, Frankenberg, Gibert, Heim, Heimann, Houweling, Hubberten, Jöckel, Law, Löw, Marshall, Agusti-Panareda, Payan, Prigent, Rairoux, Sachs, Scholze, Wirth

Bibcode: 2017RemS....9.1052E

DOI: 10.3390/rs9101052

Lees meer

Climate, land use, and other anthropogenic and natural drivers have the potential to influence fire dynamics in many regions. To develop a mechanistic understanding of the changing role of these…

Authors: van der Werf, Randerson, Giglio, van Leeuwen, Chen, Rogers, Mu, van Marle, Morton, Collatz, Yokelson, Kasibhatla

Bibcode: 2017ESSD....9..697V

DOI: 10.5194/essd-9-697-2017

Lees meer

Following the recent Global Carbon Project (GCP) synthesis of the decadal methane (CH4) budget over 2000-2012 (Saunois et al., 2016), we analyse here the same dataset with a focus on…

Authors: Saunois, Bousquet, Poulter, Peregon, Ciais, Canadell, Dlugokencky, Etiope, Bastviken, Houweling, Janssens-Maenhout, Tubiello, Castaldi, Jackson, Alexe, Arora, Beerling, Bergamaschi, Blake, Brailsford, Bruhwiler, Crevoisier, Crill, Covey, Frankenberg, Gedney, Höglund-Isaksson, Ishizawa, Ito, Joos,…

Bibcode: 2017ACP....1711135S

DOI: 10.5194/acp-17-11135-2017

Lees meer

Data assimilation systems are used increasingly to constrain the budgets of reactive and long-lived gases measured in the atmosphere. Each trace gas has its own lifetime, dominant sources and sinks,…

Authors: van der Laan-Luijkx, van der Velde, van der Veen, Tsuruta, Stanislawska, Babenhauserheide, Zhang, Liu, He, Chen, Masarie, Krol, Peters

Bibcode: 2017GMD....10.2785V

DOI: 10.5194/gmd-10-2785-2017

Lees meer

We discuss the retrieval of carbon monoxide (CO) vertical column densities from clear-sky and cloud contaminated 2311-2338 nm reflectance spectra measured by the Scanning Imaging Absorption Spectrometer for Atmospheric Chartography…

Authors: Borsdorff, aan de Brugh, Hu, Nédélec, Aben, Landgraf

Bibcode: 2017AMT....10.1769B

DOI: 10.5194/amt-10-1769-2017

Lees meer

Methane is an important atmospheric greenhouse gas and an adequate understanding of its emission sources is needed for climate change assessments, predictions, and the development and verification of emission mitigation…

Authors: Buchwitz, Schneising, Reuter, Heymann, Krautwurst, Bovensmann, Burrows, Boesch, Parker, Somkuti, Detmers, Hasekamp, Aben, Butz, Frankenberg, Turner

Bibcode: 2017ACP....17.5751B

DOI: 10.5194/acp-17-5751-2017

Lees meer

Year-to-year variations in the atmospheric methane (CH4) growth rate show significant correlation with climatic drivers. The second half of 2010 and the first half of 2011 experienced the strongest La…

Authors: Pandey, Houweling, Krol, Aben, Monteil, Nechita-Banda, Dlugokencky, Detmers, Hasekamp, Xu, Riley, Poulter, Zhang, McDonald, White, Bousquet, Röckmann

Bibcode: 2017NatSR...745759P

DOI: 10.1038/srep45759

Lees meer

Recent studies have proposed significant increases in CH4 emissions possibly from oil and gas (O&G) production, especially for the U.S. where O&G production has reached historically high levels over the…

Authors: Bruhwiler, Basu, Bergamaschi, Bousquet, Dlugokencky, Houweling, Ishizawa, Kim, Locatelli, Maksyutov, Montzka, Pandey, Patra, Petron, Saunois, Sweeney, Schwietzke, Tans, Weatherhead

Bibcode: 2017JGRD..122.4070B

DOI: 10.1002/2016JD026157

Lees meer

Air mass factor (AMF) calculation is the largest source of uncertainty in NO2 and HCHO satellite retrievals in situations with enhanced trace gas concentrations in the lower troposphere. Structural uncertainty…

Authors: Lorente, Folkert Boersma, Yu, Dörner, Hilboll, Richter, Liu, Lamsal, Barkley, De Smedt, Van Roozendael, Wang, Wagner, Beirle, Lin, Krotkov, Stammes, Wang, Eskes, Krol

Bibcode: 2017AMT....10..759L

DOI: 10.5194/amt-10-759-2017

Lees meer

We present a global distribution of surface methane (CH4) emission estimates for 2000-2012 derived using the CarbonTracker Europe-CH4 (CTE-CH4) data assimilation system. In CTE-CH4, anthropogenic and biospheric CH4 emissions are…

Authors: Tsuruta, Aalto, Backman, Hakkarainen, van der Laan-Luijkx, Krol, Spahni, Houweling, Laine, Dlugokencky, Gomez-Pelaez, van der Schoot, Langenfelds, Ellul, Arduini, Apadula, Gerbig, Feist, Kivi, Yoshida, Peters

Bibcode: 2017GMD....10.1261T

DOI: 10.5194/gmd-10-1261-2017

Lees meer

Accurate portrayal of the aerosol characteristics is crucial to determine aerosol contribution to the Earth’s radiation budget. We employ novel satellite retrievals to make a new measurement-based estimate of the…

Authors: Lacagnina, Hasekamp, Torres

Bibcode: 2017JGRD..122.2366L

DOI: 10.1002/2016JD025706

Lees meer

The aim of this paper is to present an overview of inverse modeling methods that have been developed over the years for estimating the global sources and sinks of CH4.…

Authors: Houweling, Bergamaschi, Chevallier, Heimann, Kaminski, Krol, Michalak, Patra

Bibcode: 2017ACP....17..235H

DOI: 10.5194/acp-17-235-2017

Lees meer

The global methane (CH4) budget is becoming an increasingly important component for managing realistic pathways to mitigate climate change. This relevance, due to a shorter atmospheric lifetime and a stronger…

Authors: Saunois, Bousquet, Poulter, Peregon, Ciais, Canadell, Dlugokencky, Etiope, Bastviken, Houweling, Janssens-Maenhout, Tubiello, Castaldi, Jackson, Alexe, Arora, Beerling, Bergamaschi, Blake, Brailsford, Brovkin, Bruhwiler, Crevoisier, Crill, Covey, Curry, Frankenberg, Gedney, Höglund-Isaksson, Ishizawa,…

Bibcode: 2016ESSD....8..697S

DOI: 10.5194/essd-8-697-2016

Lees meer

Methane is a greenhouse gas emitted by a range of natural and anthropogenic sources. Atmospheric methane has been measured continuously from space since 2003, and new instruments are planned for…

Authors: Jacob, Turner, Maasakkers, Sheng, Sun, Liu, Chance, Aben, McKeever, Frankenberg

Bibcode: 2016ACP....1614371J

DOI: 10.5194/acp-16-14371-2016

Lees meer

We investigate the effect of cloud contamination and 3-D radiative transfer effects on aerosol retrievals from multiangle photopolarimetric measurements in the vicinity of clouds. To this end multiangle, multiwavelength photopolarimetric…

Authors: Stap, Hasekamp, Emde, Röckmann

Bibcode: 2016JGRD..12112914S

DOI: 10.1002/2016JD024787

Lees meer

The Tropospheric Monitoring Instrument (TROPOMI) spectrometer is the single payload of the Copernicus Sentinel 5 Precursor (S5P) mission. It measures Earth radiance spectra in the shortwave infrared spectral range around…

Authors: Landgraf, aan de Brugh, Scheepmaker, Borsdorff, Hu, Houweling, Butz, Aben, Hasekamp

Bibcode: 2016AMT.....9.4955L

DOI: 10.5194/amt-9-4955-2016

Lees meer

Understanding tropical rainforest carbon exchange and its response to heat and drought is critical for quantifying the effects of climate change on tropical ecosystems, including global climate–carbon feedbacks. Of particular…

Authors: Alden, Miller, Gatti, Gloor, Guan, Michalak, Laan-Luijkx, Touma, Andrews, Basso, Correia, Domingues, Joiner, Krol, Lyapustin, Peters, Shiga, Thoning, Velde, Leeuwen, Yadav, Diffenbaugh

Bibcode: 2016GCBio..22.3427A

DOI: 10.1111/gcb.13305

Lees meer

The distribution of methane (CH4) in the stratosphere can be a major driver of spatial variability in the dry-air column-averaged CH4 mixing ratio (XCH4), which is being measured increasingly for…

Authors: Ostler, Sussmann, Patra, Houweling, De Bruine, Stiller, Haenel, Plieninger, Bousquet, Yin, Saunois, Walker, Deutscher, Griffith, Blumenstock, Hase, Warneke, Wang, Kivi, Robinson

Bibcode: 2016AMT.....9.4843O

DOI: 10.5194/amt-9-4843-2016

Lees meer

The TROPOspheric Monitoring Instrument (TROPOMI) on board the European Space Agency Sentinel-5 Precursor mission is scheduled for launch in the last quarter of 2016. As part of its operational processing…

Authors: Scheepmaker, aan de Brugh, Hu, Borsdorff, Frankenberg, Risi, Hasekamp, Aben, Landgraf

Bibcode: 2016AMT.....9.3921S

DOI: 10.5194/amt-9-3921-2016

Lees meer

The Measurements of Pollution in the Troposphere (MOPITT) instrument is the only satellite-borne sensor in operation that uses both thermal (TIR) and near-infrared (NIR) channels to estimate CO profiles. With…

Authors: Fu, Bowman, Worden, Natraj, Worden, Yu, Veefkind, Aben, Landgraf, Strow, Han

Bibcode: 2016AMT.....9.2567F

DOI: 10.5194/amt-9-2567-2016

Lees meer

We present a novel physics-based retrieval method to infer total column mixing ratios of methane (XCH4) and carbon dioxide (XCO2) from space-borne short-wavelength infrared (SWIR) Earth radiance observations over the…

Authors: Schepers, Butz, Hu, Hasekamp, Arnold, Schneider, Feist, Morino, Pollard, Aben, Landgraf

Bibcode: 2016JGRD..121.5031S

DOI: 10.1002/2015JD023389

Lees meer

This study investigates the constraint provided by greenhouse gas measurements from space on surface fluxes. Imperfect knowledge of the light path through the atmosphere, arising from scattering by clouds and…

Authors: Pandey, Houweling, Krol, Aben, Chevallier, Dlugokencky, Gatti, Gloor, Miller, Detmers, Machida, Röckmann

Bibcode: 2016ACP....16.5043P

DOI: 10.5194/acp-16-5043-2016

Lees meer

The thermal And near infrared sensor for carbon observations Fourier transform spectrometer (TANSO-FTS) on board the Greenhouse Gases Observing Satellite (GOSAT) applies the normal nadir mode above the land (“land…

Authors: Zhou, Dils, Wang, Detmers, Yoshida, O'Dell, Feist, Almario Velazco, Schneider, De Mazière

Bibcode: 2016AMT.....9.1415Z

DOI: 10.5194/amt-9-1415-2016

Lees meer

An important challenge in aerosol remote sensing is to retrieve aerosol properties in the vicinity of clouds and in cloud contaminated scenes. Satellite based multi-wavelength, multi-angular, photo-polarimetric instruments are particularly…

Authors: Stap, Hasekamp, Emde, Röckmann

Bibcode: 2016JQSRT.170...54S

DOI: 10.1016/j.jqsrt.2015.10.008

Lees meer

The CH4 growth rate in the atmosphere showed large variations after the Pinatubo eruption in June 1991. A decrease of more than 10 ppb yr-1 in the growth rate over…

Authors: Bândă, Krol, van Weele, van Noije, Le Sager, Röckmann

Bibcode: 2016ACP....16..195B

DOI: 10.5194/acp-16-195-2016

Lees meer

We present a full-mission data product of carbon monoxide (CO) vertical column densities using the 2310-2338 nm SCIAMACHY reflectance measurements over clear-sky land scenes for the period January 2003-April 2012.…

Authors: Borsdorff, Tol, Williams, de Laat, aan de Brugh, Nédélec, Aben, Landgraf

Bibcode: 2016AMT.....9..227B

DOI: 10.5194/amt-9-227-2016

Lees meer

The Geostationary Emission Explorer for Europe (G3E) is a concept for a geostationary satellite sounder that aims to constrain the sources and sinks of greenhouse gases carbon dioxide (CO2) and…

Authors: Butz, Orphal, Checa-Garcia, Friedl-Vallon, von Clarmann, Bovensmann, Hasekamp, Landgraf, Knigge, Weise, Sqalli-Houssini, Kemper

Bibcode: 2015AMT.....8.4719B

DOI: 10.5194/amt-8-4719-2015

DOI 2: 10.5194/amtd-8-6949-2015

Lees meer

Thermal And Near infrared Sensor for carbon Observations Fourier Transform Spectrometer (TANSO-FTS) on board The Greenhouse gases Observing SATellite (GOSAT) applies the normal nadir mode above the land (“land data”)…

Authors: Zhou, Dils, Wang, Detmers, Yoshida, O'Dell, Feist, Velazco, Schneider, De Mazière

Bibcode: 2015AMTD....810897Z

DOI: 10.5194/amtd-8-10897-2015

Lees meer

We present a sensitivity study of the direct fitting approach to retrieve total ozone columns from the clear sky Global Ozone Monitoring Experiment 2/MetOp-A (GOME-2/MetOp-A) measurements between 325 and 335…

Authors: Wassmann, Borsdorff, aan de Brugh, Hasekamp, Aben, Landgraf

Bibcode: 2015AMT.....8.4429W

DOI: 10.5194/amt-8-4429-2015

Lees meer

We present a full-mission data product of carbon monoxide (CO) vertical column densities using the 2310-2338 nm SCIAMACHY reflectance measurements over clear sky land scenes for the period January 2003-April…

Authors: Borsdorff, Tol, Williams, de Laat, aan de Brugh, Nédélec, Aben, Landgraf

Bibcode: 2015AMTD....8.9731B

DOI: 10.5194/amtd-8-9731-2015

Lees meer

Data assimilation systems allow for estimating surface fluxes of greenhouse gases from atmospheric concentration measurements. Good knowledge about fluxes is essential to understand how climate change affects ecosystems and to…

Authors: Babenhauserheide, Basu, Houweling, Peters, Butz

Bibcode: 2015ACP....15.9747B

DOI: 10.5194/acp-15-9747-2015

DOI 2: 10.5194/acpd-15-8883-2015

Lees meer

Sentinel-5 (S5) and its precursor (S5P) are future European satellite missions aiming at global monitoring of methane (CH4) column-average dry air mole fractions (XCH4). The spectrometers to be deployed onboard…

Authors: Checa-Garcia, Landgraf, Galli, Hase, Velazco, Tran, Boudon, Alkemade, Butz

Bibcode: 2015AMT.....8.3617C

DOI: 10.5194/amt-8-3617-2015

DOI 2: 10.5194/amtd-8-1333-2015

Lees meer

The aerosol single-scattering albedo (SSA) over the global ocean is evaluated based on polarimetric measurements by the PARASOL (Polarization and Anisotropy of Reflectances for Atmospheric Sciences coupled with Observations from…

Authors: Lacagnina, Hasekamp, Bian, Curci, Myhre, van Noije, Schulz, Skeie, Takemura, Zhang

Bibcode: 2015JGRD..120.9814L

DOI: 10.1002/2015JD023501

Lees meer

We present a method for assimilating total column CH4 : CO2 ratio measurements from satellites for inverse modeling of CH4 and CO2 fluxes using the variational approach. Unlike conventional approaches,…

Authors: Pandey, Houweling, Krol, Aben, Rockmann

Bibcode: 2015ACP....15.8615P

DOI: 10.5194/acp-15-8615-2015

DOI 2: 10.5194/acpd-15-8801-2015

Lees meer

Two major droughts in the past decade had large impacts on carbon exchange in the Amazon. Recent analysis of vertical profile measurements of atmospheric CO2 and CO by Gatti et…

Authors: van der Laan-Luijkx, van der Velde, Krol, Gatti, Domingues, Correia, Miller, Gloor, van Leeuwen, Kaiser, Wiedinmyer, Basu, Clerbaux, Peters

Bibcode: 2015GBioC..29.1092V

DOI: 10.1002/2014GB005082

Lees meer

The CH4 growth rate in the atmosphere showed large variations after the Pinatubo eruption in June 1991. A decrease of more than 10 ppb yr-1 in the growth rate over…

Authors: Bândă, Krol, van Weele, van Noije, Le Sager, Röckmann

Bibcode: 2015ACPD...1519111B

DOI: 10.5194/acpd-15-19111-2015

Lees meer

We investigated the importance of spectral range and angular resolution for aerosol retrieval from multiangle photopolarimetric measurements over land. For this purpose, we use an extensive set of simulated measurements…

Authors: Wu, Hasekamp, van Diedenhoven, Cairns

Bibcode: 2015AMT.....8.2625W

DOI: 10.5194/amt-8-2625-2015

DOI 2: 10.5194/amtd-8-2793-2015

Lees meer

The GHG-CCI project is one of several projects of the European Space Agency’s (ESA) Climate Change Initiative (CCI). The goal of the CCI is to generate and deliver data sets…

Authors: Buchwitz, Reuter, Schneising, Boesch, Guerlet, Dils, Aben, Armante, Bergamaschi, Blumenstock, Bovensmann, Brunner, Buchmann, Burrows, Butz, Chédin, Chevallier, Crevoisier, Deutscher, Frankenberg, Hase, Hasekamp, Heymann, Kaminski, Laeng, Lichtenberg, De Mazière, Noël, Notholt,…

Bibcode: 2015RSEnv.162..344B

DOI: 10.1016/j.rse.2013.04.024

Lees meer

The review of optical instrumentation, forward modeling, and inverse problem solution for the polarimetric aerosol remote sensing from space is presented. The special emphasis is given to the description of…

Authors: Kokhanovsky, Davis, Cairns, Dubovik, Hasekamp, Sano, Mukai, Rozanov, Litvinov, Lapyonok, Kolomiets, Oberemok, Savenkov, Martin, Wasilewski, Di Noia, Stap, Rietjens, Xu, Natraj, Duan, Cheng, Munro

Bibcode: 2015ESRv..145...85K

DOI: 10.1016/j.earscirev.2015.01.012

Lees meer

Carbon dioxide emissions from wild and anthropogenic fires return the carbon absorbed by plants to the atmosphere, and decrease the sequestration of carbon by land ecosystems. Future climate warming will…

Authors: Yue, Ciais, Cadule, Thonicke, van Leeuwen

Bibcode: 2015GMD.....8.1321Y

DOI: 10.5194/gmd-8-1321-2015

DOI 2: 10.5194/gmdd-7-9017-2014

Lees meer

This study presents the outcome of an inverse modeling intercomparison experiment on the use of total column CO2 retrievals from Greenhouse Gas Observing Satellite (GOSAT) for quantifying global sources and…

Authors: Houweling, Baker, Basu, Boesch, Butz, Chevallier, Deng, Dlugokencky, Feng, Ganshin, Hasekamp, Jones, Maksyutov, Marshall, Oda, O'Dell, Oshchepkov, Palmer, Peylin, Poussi, Reum, Takagi, Yoshida, Zhuravlev

Bibcode: 2015JGRD..120.5253H

DOI: 10.1002/2014JD022962

Lees meer

The GHG-CCI project (http://www.esa-ghg-cci.org/) is one of several projects of the European Space Agency’s (ESA) Climate Change Initiative (CCI). The goal of the CCI is to generate and deliver data…

Authors: Buchwitz, Reuter, Schneising, Boesch, Aben, Alexe, Armante, Bergamaschi, Bovensmann, Brunner, Buchmann, Burrows, Butz, Chevallier, Chedin, Crevoisier, Gonzi, De Maziere, De Wachter, Detmers, Dils, Frankenberg, Hahne, Hasekamp, Hewson, Heymann, Houweling, Hilker,…

Bibcode: 2015ISPAr.XL7..165B

DOI: 10.5194/isprsarchives-XL-7-W3-165-2015

Lees meer

An important problem in satellite remote sensing of aerosols is related to the need to perform an adequate cloud screening. If a cloud screening is applied that is not strict…

Authors: Stap, Hasekamp, Röckmann

Bibcode: 2015AMT.....8.1287S

DOI: 10.5194/amt-8-1287-2015

DOI 2: 10.5194/amtd-7-10673-2014

Lees meer

The eruption of Mount Pinatubo in 1991 injected a large amount of SO2 into the stratosphere, which formed sulfate aerosols. Increased scattering and absorption of UV radiation by the enhanced…

Authors: Bândǎ, Krol, van Noije, van Weele, Williams, Sager, Niemeier, Thomason, Röckmann

Bibcode: 2015JGRD..120.1202B

DOI: 10.1002/2014JD022137

Lees meer

In this paper, the use of a neural network algorithm for the retrieval of the aerosol properties from ground-based spectropolarimetric measurements is discussed. The neural network is able to retrieve…

Authors: Di Noia, Hasekamp, van Harten, Rietjens, Smit, Snik, Henzing, de Boer, Keller, Volten

Bibcode: 2015AMT.....8..281D

DOI: 10.5194/amt-8-281-2015

DOI 2: 10.5194/amtd-7-9047-2014

Lees meer

At the beginning of 2009 new space-borne observations of dry-air column-averaged mole fractions of atmospheric methane (XCH4) became available from the Thermal And Near infrared Sensor for carbon Observations-Fourier Transform…

Authors: Alexe, Bergamaschi, Segers, Detmers, Butz, Hasekamp, Guerlet, Parker, Boesch, Frankenberg, Scheepmaker, Dlugokencky, Sweeney, Wofsy, Kort

Bibcode: 2015ACP....15..113A

DOI: 10.5194/acp-15-113-2015

DOI 2: 10.5194/acpd-14-11493-2014

Lees meer

Radiance measurements of solar radiation that is backscattered by the Earth’s atmosphere or surface contain information about the atmospheric composition and the state of the Earth’s surface. Retrieving such information…

Authors: Schepers, aan de Brugh, Hahne, Butz, Hasekamp, Landgraf

Bibcode: 2014JQSRT.149..347S

DOI: 10.1016/j.jqsrt.2014.08.019

Lees meer

Current knowledge about the European terrestrial biospheric carbon sink, from the Atlantic to the Urals, relies upon bottom-up inventory and surface flux inverse model estimates (e.g. 0.27±0.16 GtC a-1 for…

Authors: Reuter, Buchwitz, Hilker, Heymann, Schneising, Pillai, Bovensmann, Burrows, Bösch, Parker, Butz, Hasekamp, O'Dell, Yoshida, Gerbig, Nehrkorn, Deutscher, Warneke, Notholt, Hase, Kivi, Sussmann, Machida, Matsueda, Sawa

Bibcode: 2014ACP....1413739R

DOI: 10.5194/acp-14-13739-2014

DOI 2: 10.5194/acpd-14-21829-2014

Lees meer

Characterization of atmospheric aerosols is important for understanding their impact on health and climate. A wealth of aerosol parameters can be retrieved from multi-angle, multi-wavelength radiance and polarization measurements of…

Authors: van Harten, de Boer, Rietjens, Di Noia, Snik, Volten, Smit, Hasekamp, Henzing, Keller

Bibcode: 2014AMT.....7.4341V

DOI: 10.5194/amt-7-4341-2014

DOI 2: 10.5194/amtd-7-5741-2014

Lees meer

Classifying observed aerosols into types (e.g., urban-industrial, biomass burning, mineral dust, maritime) helps to understand aerosol sources, transformations, effects, and feedback mechanisms; to improve accuracy of satellite retrievals; and to…

Authors: Russell, Kacenelenbogen, Livingston, Hasekamp, Burton, Schuster, Johnson, Knobelspiesse, Redemann, Ramachandran, Holben

Bibcode: 2014JGRD..119.9838R

DOI: 10.1002/2013JD021411

Lees meer

In this paper we present the first contiguous high-resolution spectra of the Earth’s polarisation observed by a satellite instrument. The measurements of the Stokes fraction Q/I are performed by the…

Authors: Tilstra, Lang, Munro, Aben, Stammes

Bibcode: 2014AMT.....7.2047T

DOI: 10.5194/amt-7-2047-2014

DOI 2: 10.5194/amtd-6-11309-2013

Lees meer

Remote sensing of aerosols provides important information on atmospheric aerosol abundance. However, due to the hygroscopic nature of aerosol particles observed aerosol optical properties are influenced by atmospheric humidity, and…

Authors: van Beelen, Roelofs, Hasekamp, Henzing, Röckmann

Bibcode: 2014ACP....14.5969V

DOI: 10.5194/acp-14-5969-2014

DOI 2: 10.5194/acpd-13-15191-2013

Lees meer

Column-averaged dry-air mole fractions of carbon dioxide and methane have been retrieved from spectra acquired by the TANSO-FTS (Thermal And Near-infrared Sensor for carbon Observations-Fourier Transform Spectrometer) and SCIAMACHY (Scanning…

Authors: Dils, Buchwitz, Reuter, Schneising, Boesch, Parker, Guerlet, Aben, Blumenstock, Burrows, Butz, Deutscher, Frankenberg, Hase, Hasekamp, Heymann, De Mazière, Notholt, Sussmann, Warneke, Griffith, Sherlock, Wunch

Bibcode: 2014AMT.....7.1723D

DOI: 10.5194/amt-7-1723-2014

DOI 2: 10.5194/amtd-6-8679-2013

Lees meer

The Monitoring Atmospheric Composition and Climate Interim Implementation (MACC-II) delayed-mode (DM) system has been producing an atmospheric methane (CH4) analysis 6 months behind real time since June 2009. This analysis…

Authors: Massart, Agusti-Panareda, Aben, Butz, Chevallier, Crevosier, Engelen, Frankenberg, Hasekamp

Bibcode: 2014ACP....14.6139M

DOI: 10.5194/acp-14-6139-2014

DOI 2: 10.5194/acpd-14-2553-2014

Lees meer

The Fourier-transform spectrometer on board the Japanese GOSAT (Greenhouse gases Observing SATellite) satellite offers an excellent opportunity to study the impact of instrument resolution on retrieval accuracy of CO2 and…

Authors: Galli, Guerlet, Butz, Aben, Suto, Kuze, Deutscher, Notholt, Wunch, Wennberg, Griffith, Hasekamp, Landgraf

Bibcode: 2014AMT.....7.1105G

DOI: 10.5194/amt-7-1105-2014

DOI 2: 10.5194/amtd-6-10399-2013

Lees meer

This study investigates the use of total column CH4 (XCH4) retrievals from the SCIAMACHY satellite instrument for quantifying large-scale emissions of methane. A unique data set from SCIAMACHY is available…

Authors: Houweling, Krol, Bergamaschi, Frankenberg, Dlugokencky, Morino, Notholt, Sherlock, Wunch, Beck, Gerbig, Chen, Kort, Röckmann, Aben

Bibcode: 2014ACP....14.3991H

DOI: 10.5194/acp-14-3991-2014

DOI 2: 10.5194/acpd-13-28117-2013

Lees meer

Tropical wetlands are estimated to represent about 50% of the natural wetland methane (CH4) emissions and explain a large fraction of the observed CH4 variability on timescales ranging from glacial-interglacial…

Authors: Ringeval, Houweling, van Bodegom, Spahni, van Beek, Joos, Röckmann

Bibcode: 2014BGeo...11.1519R

DOI: 10.5194/bg-11-1519-2014

DOI 2: 10.5194/bgd-10-16713-2013

Lees meer

Insights are given into Tikhonov regularization and its application to the retrieval of vertical column densities of atmospheric trace gases from remote sensing measurements. The study builds upon the equivalence…

Authors: Borsdorff, Hasekamp, Wassmann, Landgraf

Bibcode: 2014AMT.....7..523B

DOI: 10.5194/amt-7-523-2014

DOI 2: 10.5194/amtd-6-4999-2013

Lees meer

Satellite retrievals of methane weighted atmospheric columns are assimilated within a Bayesian inversion system to infer the global and regional methane emissions and sinks for the period August 2009 to…

Authors: Cressot, Chevallier, Bousquet, Crevoisier, Dlugokencky, Fortems-Cheiney, Frankenberg, Parker, Pison, Scheepmaker, Montzka, Krummel, Steele, Langenfelds

Bibcode: 2014ACP....14..577C

DOI: 10.5194/acp-14-577-2014

DOI 2: 10.5194/acpd-13-8023-2013

Lees meer

Two atmospheric inversions (one fine-resolved and one process-discriminating) and a process-based model for land surface exchanges are brought together to analyse the variations of methane emissions from 1990 to 2009.…

Authors: Pison, Ringeval, Bousquet, Prigent, Papa

Bibcode: 2013ACP....1311609P

DOI: 10.5194/acp-13-11609-2013

DOI 2: 10.5194/acpd-13-9017-2013

Lees meer

A technique characterizing the distribution of cirrus cloud-top occurrences from the Optical Spectrograph and Infrared Imaging System (OSIRIS) limb-scattering radiance profiles is presented. The technique involves computing scattering residual profiles…

Authors: Normand, Wiensz, Bourassa, Degenstein

Bibcode: 2013AMT.....6.3359N

DOI: 10.5194/amt-6-3359-2013

DOI 2: 10.5194/amtd-6-6491-2013

Lees meer

Methane is an important greenhouse gas, responsible for about 20% of the warming induced by long-lived greenhouse gases since pre-industrial times. A compilation of observations and results from chemical transport,…

Authors: Kirschke, Bousquet, Ciais, Saunois, Canadell, Dlugokencky, Bergamaschi, Bergmann, Blake, Bruhwiler, Cameron-Smith, Castaldi, Chevallier, Feng, Fraser, Heimann, Hodson, Houweling, Josse, Fraser, Krummel, Lamarque, Langenfelds, Le Quéré, Naik, O'Doherty, Palmer, Pison, Plummer,…

Bibcode: 2013NatGe...6..813K

DOI: 10.1038/ngeo1955

Lees meer

Over the past decade the development of Scanning Imaging Absorption Spectrometer for Atmospheric Chartography (SCIAMACHY) retrievals has increased the interest in the use of satellite measurements for studying the global…

Authors: Monteil, Houweling, Butz, Guerlet, Schepers, Hasekamp, Frankenberg, Scheepmaker, Aben, Röckmann

Bibcode: 2013JGRD..11811807M

DOI: 10.1002/2013JD019760

Lees meer

A modelling experiment has been conceived to assess the impact of transport model errors on methane emissions estimated in an atmospheric inversion system. Synthetic methane observations, obtained from 10 different…

Authors: Locatelli, Bousquet, Chevallier, Fortems-Cheney, Szopa, Saunois, Agusti-Panareda, Bergmann, Bian, Cameron-Smith, Chipperfield, Gloor, Houweling, Kawa, Krol, Patra, Prinn, Rigby, Saito, Wilson

Bibcode: 2013ACP....13.9917L

DOI: 10.5194/acp-13-9917-2013

DOI 2: 10.5194/acpd-13-10961-2013

Lees meer

Two independently derived SCIAMACHY total water vapour column (WVC) products are compared with integrated water vapour data calculated from radiosonde measurements, and with each other. The two SCIAMACHY WVC products…

Authors: du Piesanie, Piters, Aben, Schrijver, Wang, Noël

Bibcode: 2013AMT.....6.2925D

DOI: 10.5194/amt-6-2925-2013

DOI 2: 10.5194/amtd-6-665-2013

Lees meer

We present one of the first estimates of the global distribution of CO2 surface fluxes using total column CO2 measurements retrieved by the SRON-KIT RemoTeC algorithm from the Greenhouse gases…

Authors: Basu, Guerlet, Butz, Houweling, Hasekamp, Aben, Krummel, Steele, Langenfelds, Torn, Biraud, Stephens, Andrews, Worthy

Bibcode: 2013ACP....13.8695B

DOI: 10.5194/acp-13-8695-2013

DOI 2: 10.5194/acpd-13-4535-2013

Lees meer

Spectroscopic measurements of sunlight backscattered by the Earth’s surface is a technique widely used for remote sensing of atmospheric constituent concentrations from space. Thereby, remote sensing of greenhouse gases poses…

Authors: Butz, Guerlet, Hasekamp, Kuze, Suto

Bibcode: 2013AMT.....6.2509B

DOI: 10.5194/amt-6-2509-2013

DOI 2: 10.5194/amtd-6-4371-2013

Lees meer

causes of renewed growth in the atmospheric CH4 burden since 2007 are still poorly understood and subject of intensive scientific discussion. We present a reanalysis of global CH4 emissions during…

Authors: Bergamaschi, Houweling, Segers, Krol, Frankenberg, Scheepmaker, Dlugokencky, Wofsy, Kort, Sweeney, Schuck, Brenninkmeijer, Chen, Beck, Gerbig

Bibcode: 2013JGRD..118.7350B

DOI: 10.1002/jgrd.50480

Lees meer

Biomass burning is a major source of trace gases and aerosols, influencing atmospheric chemistry and climate. To quantitatively assess its impact, an accurate representation of fire emissions is crucial for…

Authors: van Leeuwen, Peters, Krol, van der Werf

Bibcode: 2013JGRD..118.6797V

DOI: 10.1002/jgrd.50478

Lees meer

The fires around Moscow in July and August 2010 emitted a large amount of pollutants to the atmosphere. Here we estimate the carbon monoxide (CO) source strength of the Moscow…

Authors: Krol, Peters, Hooghiemstra, George, Clerbaux, Hurtmans, McInerney, Sedano, Bergamaschi, El Hajj, Kaiser, Fisher, Yershov, Muller

Bibcode: 2013ACP....13.4737K

DOI: 10.5194/acp-13-4737-2013

DOI 2: 10.5194/acpd-12-28705-2012

Lees meer

Inadequate treatment of aerosol scattering can be a significant source of error when retrieving column-averaged dry-air mole fractions of CO2 (XCO2) from space-based measurements of backscattered solar shortwave radiation. We…

Authors: Guerlet, Butz, Schepers, Basu, Hasekamp, Kuze, Yokota, Blavier, Deutscher, Griffith, Hase, Kyro, Morino, Sherlock, Sussmann, Galli, Aben

Bibcode: 2013JGRD..118.4887G

DOI: 10.1002/jgrd.50332

Lees meer

To assess horizontal and vertical transports of methane (CH4) concentrations at different heights within the troposphere, we analyzed simulations by 12 chemistry transport models (CTMs) that participated in the TransCom-CH4…

Authors: Saito, Patra, Sweeney, Machida, Krol, Houweling, Bousquet, Agusti-Panareda, Belikov, Bergmann, Bian, Cameron-Smith, Chipperfield, Fortems-Cheiney, Fraser, Gatti, Gloor, Hess, Kawa, Law, Locatelli, Loh, Maksyutov, Meng, Miller, Palmer, Prinn, Rigby, Wilson

Bibcode: 2013JGRD..118.3891S

DOI: 10.1002/jgrd.50380

Lees meer

This report is the second in a series of companion papers describing the effects of atmospheric light scattering in observations of atmospheric carbon dioxide (CO2) by the Greenhouse gases Observing…

Authors: Oshchepkov, Bril, Yokota, Wennberg, Deutscher, Wunch, Toon, Yoshida, O'Dell, Crisp, Miller, Frankenberg, Butz, Aben, Guerlet, Hasekamp, Boesch, Cogan, Parker, Griffith, Macatangay, Notholt, Sussmann, Rettinger, Sherlock, Robinson, Kyrö, Heikkinen, Feist, Morino,…

Bibcode: 2013JGRD..118.1493O

DOI: 10.1002/jgrd.50146

Lees meer

A modified cumulus convection parametrisation scheme is presented. This scheme computes the mass of air transported upward in a cumulus cell using conservation of moisture and a detailed distribution of…

Authors: Belikov, Maksyutov, Krol, Fraser, Rigby, Bian, Agusti-Panareda, Bergmann, Bousquet, Cameron-Smith, Chipperfield, Fortems-Cheiney, Gloor, Haynes, Hess, Houweling, Kawa, Law, Loh, Meng, Palmer, Patra, Prinn, Saito, Wilson

Bibcode: 2013ACP....13.1093B

DOI: 10.5194/acp-13-1093-2013

DOI 2: 10.5194/acpd-12-20239-2012

Lees meer

The global methane (CH4) growth rate showed large variations after the eruption of Mount Pinatubo in June 1991. Both sources and sinks of tropospheric CH4 were altered following the eruption,…

Authors: Bândă, Krol, van Weele, van Noije, Röckmann

Bibcode: 2013ACP....13.2267B

DOI: 10.5194/acp-13-2267-2013

DOI 2: 10.5194/acpd-12-18029-2012

Lees meer

Atmospheric carbon monoxide (CO) distributions are controlled by anthropogenic emissions, biomass burning, transport and oxidation by reaction with the hydroxyl radical (OH). Quantifying trends in CO is therefore important for…

Authors: Worden, Deeter, Frankenberg, George, Nichitiu, Worden, Aben, Bowman, Clerbaux, Coheur, de Laat, Detweiler, Drummond, Edwards, Gille, Hurtmans, Luo, Martínez-Alonso, Massie, Pfister, Warner

Bibcode: 2013ACP....13..837W

DOI: 10.5194/acp-13-837-2013

DOI 2: 10.5194/acpd-12-25703-2012

Lees meer

We present a technique for estimating the optical thickness of subvisual cirrus clouds detected by OSIRIS (Optical Spectrograph and Infrared Imaging System), a limb-viewing satellite instrument that measures scattered radiances…

Authors: Wiensz, Degenstein, Lloyd, Bourassa

Bibcode: 2013AMT.....6..105W

DOI: 10.5194/amt-6-105-2013

DOI 2: 10.5194/amtd-5-5313-2012

Lees meer

For land surfaces and atmospheric aerosol characterization on the basis of satellite and airborne measurements models for surface reflection description are required. At present time for visible and infrared spectral…

Authors: Litvinov, Hasekamp, Dubovik, Cairns

Bibcode: 2012JQSRT.113.2023L

DOI: 10.1016/j.jqsrt.2012.06.027

Lees meer

Methane is an important greenhouse gas that is emitted from multiple natural and anthropogenic sources. Atmospheric methane concentrations have varied on a number of timescales in the past, but what…

Authors: Sapart, Monteil, Prokopiou, van de Wal, Kaplan, Sperlich, Krumhardt, van der Veen, Houweling, Krol, Blunier, Sowers, Martinerie, Witrant, Dahl-Jensen, Röckmann

Bibcode: 2012Natur.490...85S

DOI: 10.1038/nature11461

Lees meer

This paper presents a validation study of SCanning Imaging Absorption SpectroMeter for Atmospheric CartograpHY (SCIAMACHY) carbon monoxide (CO) total column measurements from the Iterative Maximum Likelihood Method (IMLM) algorithm using…

Authors: de Laat, Dijkstra, Schrijver, Nédélec, Aben

Bibcode: 2012AMT.....5.2133D

DOI: 10.5194/amt-5-2133-2012

DOI 2: 10.5194/amtd-5-1985-2012

Lees meer

We present the first inverse modeling study to estimate CO emissions constrained by both surface and satellite observations. Our 4D-Var system assimilates National Oceanic and Atmospheric Administration Earth System Research…

Authors: Hooghiemstra, Krol, van Leeuwen, van der Werf, Novelli, Deeter, Aben, Röckmann

Bibcode: 2012JGRD..11715308H

DOI: 10.1029/2012JD017758

Lees meer

Tropical regions, especially the Amazon region, account for large emissions of methane (CH4). Here, we present CH4 observations from two airborne campaigns conducted within the BARCA (Balanço Atmosférico Regional de…

Authors: Beck, Chen, Gerbig, Bergamaschi, Bruhwiler, Houweling, Röckmann, Kolle, Steinbach, Koch, Sapart, van der Veen, Frankenberg, Andreae, Artaxo, Longo, Wofsy

Bibcode: 2012JGRD..11715310B

DOI: 10.1029/2011JD017345

Lees meer

New generations of space-borne spectrometers for the retrieval of atmospheric abundances of greenhouse gases require unprecedented accuracies as atmospheric variability of long-lived gases is very low. These instruments, such as…

Authors: Frankenberg, Hasekamp, O'Dell, Sanghavi, Butz, Worden

Bibcode: 2012AMT.....5.1809F

DOI: 10.5194/amt-5-1809-2012

DOI 2: 10.5194/amtd-5-2857-2012

Lees meer

A simple empirical CO2 model (SECM) is presented to estimate column-average dry-air mole fractions of atmospheric CO2 (XCO2) as well as mixing ratio profiles. SECM is based on a simple…

Authors: Reuter, Buchwitz, Schneising, Hase, Heymann, Guerlet, Cogan, Bovensmann, Burrows

Bibcode: 2012AMT.....5.1349R

DOI: 10.5194/amt-5-1349-2012

DOI 2: 10.5194/amtd-5-1293-2012

Lees meer

This report describes a validation study of Greenhouse gases Observing Satellite (GOSAT) data processing using ground-based measurements of the Total Carbon Column Observing Network (TCCON) as reference data for column-averaged…

Authors: Oshchepkov, Bril, Yokota, Morino, Yoshida, Matsunaga, Belikov, Wunch, Wennberg, Toon, O'Dell, Butz, Guerlet, Cogan, Boesch, Eguchi, Deutscher, Griffith, Macatangay, Notholt, Sussmann, Rettinger, Sherlock, Robinson, Kyrö, Heikkinen, Feist, Nagahama, Kadygrov, Maksyutov,…

Bibcode: 2012JGRD..11712305O

DOI: 10.1029/2012JD017505

Lees meer

The TROPOspheric Monitoring Instrument (TROPOMI) will be part of ESA’s Sentinel-5 Precursor (S5P) satellite platform scheduled for launch in 2015. TROPOMI will monitor methane and carbon monoxide concentrations in the…

Authors: Galli, Butz, Scheepmaker, Hasekamp, Landgraf, Tol, Wunch, Deutscher, Toon, Wennberg, Griffith, Aben

Bibcode: 2012AMT.....5.1387G

DOI: 10.5194/amt-5-1387-2012

DOI 2: 10.5194/amtd-5-2131-2012

Lees meer

The GMES atmospheric services include global and European air quality monitoring and forecasting which require near real time delivery of atmospheric CO abundances. To achieve this, a numerically efficient retrieval…

Authors: Vidot, Landgraf, Hasekamp, Butz, Galli, Tol, Aben

Bibcode: 2012RSEnv.120..255V

DOI: 10.1016/j.rse.2011.09.032

Lees meer

Due to the well-defined vertical profile of O2 in the atmosphere, the strong A-band (757-774 nm) has long been used to estimate vertical distributions of aerosol/cloud from space. We extend…

Authors: Sanghavi, Martonchik, Landgraf, Platt

Bibcode: 2012AMT.....5.1099S

DOI: 10.5194/amt-5-1099-2012

DOI 2: 10.5194/amtd-4-6779-2011

Lees meer

The ESA (European Space Agency) Sentinel-5 Precursor (S-5 P) is a low Earth orbit polar satellite to provide information and services on air quality, climate and the ozone layer in…

Authors: Veefkind, Aben, McMullan, Förster, de Vries, Otter, Claas, Eskes, de Haan, Kleipool, van Weele, Hasekamp, Hoogeveen, Landgraf, Snel, Tol, Ingmann, Voors, Kruizinga, Vink, Visser, Levelt

Bibcode: 2012RSEnv.120...70V

DOI: 10.1016/j.rse.2011.09.027

Lees meer

We compare two conceptually different methods for determining methane column-averaged mixing ratios ? from Greenhouse Gases Observing Satellite (GOSAT) shortwave infrared (SWIR) measurements. These methods account differently for light scattering…

Authors: Schepers, Guerlet, Butz, Landgraf, Frankenberg, Hasekamp, Blavier, Deutscher, Griffith, Hase, Kyro, Morino, Sherlock, Sussmann, Aben

Bibcode: 2012JGRD..11710307S

DOI: 10.1029/2012JD017549

Lees meer

The TROPOspheric Monitoring Instrument (TROPOMI) will be part of ESA’s Sentinel-5 Precursor satellite platform scheduled for launch in late 2014. One of TROPOMI’s primary goals will be to accurately monitor…

Authors: Butz, Galli, Hasekamp, Landgraf, Tol, Aben

Bibcode: 2012RSEnv.120..267B

DOI: 10.1016/j.rse.2011.05.030

Lees meer

This paper compares two global inversions to estimate carbon monoxide (CO) emissions for 2004. Either surface flask observations from the National Oceanic and Atmospheric Administration Earth System Research Laboratory (NOAA/ESRL)…

Authors: Hooghiemstra, Krol, Bergamaschi, de Laat, van der Werf, Novelli, Deeter, Aben, Röckmann

Bibcode: 2012JGRD..117.6309H

DOI: 10.1029/2011JD017043

Lees meer

In this paper we study the close relationship between the radiometric calibration of a satellite instrument and the Absorbing Aerosol Index (AAI) derived from the observed Earth reflectance. Instrument degradation…

Authors: Tilstra, de Graaf, Aben, Stammes

Bibcode: 2012JGRD..117.6209T

DOI: 10.1029/2011JD016957

Lees meer

CO2 surface fluxes that are statistically consistent with surface layer measurements of CO2, when propagated forward in time by atmospheric transport models, underestimate the seasonal cycle amplitude of total column…

Authors: Basu, Houweling, Peters, Sweeney, Machida, Maksyutov, Patra, Saito, Chevallier, Niwa, Matsueda, Sawa

Bibcode: 2011JGRD..11623306B

DOI: 10.1029/2011JD016124

Lees meer

A chemistry-transport model (CTM) intercomparison experiment (TransCom-CH4) has been designed to investigate the roles of surface emissions, transport and chemical loss in simulating the global methane distribution. Model simulations were…

Authors: Patra, Houweling, Krol, Bousquet, Belikov, Bergmann, Bian, Cameron-Smith, Chipperfield, Corbin, Fortems-Cheiney, Fraser, Gloor, Hess, Ito, Kawa, Law, Loh, Maksyutov, Meng, Palmer, Prinn, Rigby, Saito, Wilson

Bibcode: 2011ACP....1112813P

DOI: 10.5194/acp-11-12813-2011

DOI 2: 10.5194/acpd-11-18767-2011

Lees meer

A model-based three-dimensional (3-D) climatology of atmospheric CO2 concentrations has been constructed for the analysis of satellite observations, as a priori information in retrieval calculations, and for preliminary evaluation of…

Authors: Saito, Houweling, Patra, Belikov, Lokupitiya, Niwa, Chevallier, Saeki, Maksyutov

Bibcode: 2011JGRD..11621120S

DOI: 10.1029/2011JD016033

Lees meer

In this work we discuss the retrieval of ozone profiles from Infrared Atmospheric Sounding Interferometer (IASI) thermal infrared measurements in the presence of thin cirrus. An algorithm is presented which…

Authors: Wassmann, Landgraf, Aben

Bibcode: 2011JGRD..11622302W

DOI: 10.1029/2011JD016066

Lees meer

In this paper we present an approach to retrieve stratospheric aerosol number densities in the altitude range 10-40 km from SCIAMACHY limb radiance measurements in the spectral range of the…

Authors: Ovigneur, Landgraf, Snel, Aben

Bibcode: 2011AMT.....4.2359O

DOI: 10.5194/amt-4-2359-2011

DOI 2: 10.5194/amtd-4-1795-2011

Lees meer

In the ultra-violet, visible and near infra-red wavelength range the presence of clouds can strongly affect the satellite-based passive remote sensing observation of constituents in the troposphere, because clouds effectively…

Authors: Krijger, Tol, Istomina, Schlundt, Schrijver, Aben

Bibcode: 2011AMT.....4.2213K

DOI: 10.5194/amt-4-2213-2011

DOI 2: 10.5194/amtd-4-1113-2011

Lees meer

The availability δ13C-CH4 measurements from atmospheric samples has significantly improved in recent years, which allows the construction of time series spanning up to about 2 decades. We have used these…

Authors: Monteil, Houweling, Dlugockenky, Maenhout, Vaughn, White, Rockmann

Bibcode: 2011ACP....11.9141M

DOI: 10.5194/acp-11-9141-2011

DOI 2: 10.5194/acpd-11-6771-2011

Lees meer

In order to make full use of the capability of satellite instruments that measure intensity and polarization properties of reflected light at multiple viewing angles and multiple wavelengths, algorithms are…

Authors: Hasekamp, Litvinov, Butz

Bibcode: 2011JGRD..11614204H

DOI: 10.1029/2010JD015469

Lees meer

A novel limb scanning mini-DOAS spectrometer for the detection of UV/vis absorbing radicals (e.g., O3, BrO, IO, HONO) was deployed on the DLR-Falcon (Deutsches Zentrum für Luft- und Raumfahrt) aircraft…

Authors: Prados-Roman, Butz, Deutschmann, Dorf, Kritten, Minikin, Platt, Schlager, Sihler, Theys, van Roozendael, Wagner, Pfeilsticker

Bibcode: 2011AMT.....4.1241P

DOI: 10.5194/amt-4-1241-2011

DOI 2: 10.5194/amtd-3-3925-2010

Lees meer

Natural methane (CH4) emissions from wet ecosystems are an important part of today’s global CH4 budget. Climate affects the exchange of CH4 between ecosystems and the atmosphere by influencing CH4…

Authors: Spahni, Wania, Neef, van Weele, Pison, Bousquet, Frankenberg, Foster, Joos, Prentice, van Velthoven

Bibcode: 2011BGeo....8.1643S

DOI: 10.5194/bg-8-1643-2011

DOI 2: 10.5194/bgd-8-221-2011

Lees meer

We apply a four-dimensional variational (4D-VAR) data assimilation system to optimize carbon monoxide (CO) emissions for 2003 and 2004 and to reduce the uncertainty of emission estimates from individual sources…

Authors: Hooghiemstra, Krol, Meirink, Bergamaschi, van der Werf, Novelli, Aben, Röckmann

Bibcode: 2011ACP....11.4705H

DOI: 10.5194/acp-11-4705-2011

DOI 2: 10.5194/acpd-11-341-2011

Lees meer

After a decade of stable or slightly decreasing global methane concentrations, ground-based in situ data show that CH4 began increasing again in 2007 and that this increase continued through 2009.…

Authors: Frankenberg, Aben, Bergamaschi, Dlugokencky, van Hees, Houweling, van der Meer, Snel, Tol

Bibcode: 2011JGRD..116.4302F

DOI: 10.1029/2010JD014849

Lees meer

In this paper, we investigate the surface-atmosphere radiative interaction in application to the problem of aerosol satellite remote sensing over land. First, we test different models of the Bidirectional Reflectance…

Authors: Litvinov, Hasekamp, Cairns

Bibcode: 2011RSEnv.115..781L

DOI: 10.1016/j.rse.2010.11.005

Lees meer

Monitoring of atmospheric methane (CH4) concentrations from space-based instruments such as the Scanning Imaging Absorption Spectrometer for Atmospheric Chartography (SCIAMACHY) and the Greenhouse Gases Observing Satellite (GOSAT) relies on observations…

Authors: Butz, Hasekamp, Frankenberg, Vidot, Aben

Bibcode: 2010JGRD..11524302B

DOI: 10.1029/2010JD014514

Lees meer

This paper presents a validation study of SCanning Imaging Absorption spectroMeter for Atmospheric CHartographY (SCIAMACHY) carbon monoxide (CO) total column measurements from the Iterative Maximum Likelihood Method (IMLM) algorithm using…

Authors: de Laat, Gloudemans, Schrijver, Aben, Nagahama, Suzuki, Mahieu, Jones, Paton-Walsh, Deutscher, Griffith, de Mazière, Mittermeier, Fast, Notholt, Palm, Hawat, Blumenstock, Hase, Schneider, Rinsland, Dzhola, Grechko, Poberovskii, Makarova, Mellqvist, Strandberg, Sussmann,…

Bibcode: 2010AMT.....3.1457D

DOI: 10.5194/amt-3-1457-2010

DOI 2: 10.5194/amtd-3-2891-2010

Lees meer

This study presents a synthetic model intercomparison to investigate the importance of transport model errors for estimating the sources and sinks of CO2 using satellite measurements. The experiments were designed…

Authors: Houweling, Aben, Breon, Chevallier, Deutscher, Engelen, Gerbig, Griffith, Hungershoefer, Macatangay, Marshall, Notholt, Peters, Serrar

Bibcode: 2010ACP....10.9981H

DOI: 10.5194/acp-10-9981-2010

DOI 2: 10.5194/acpd-10-14737-2010

Lees meer

We present a comprehensive description and benchmark evaluation of the tropospheric chemistry version of the global chemistry transport model TM5 (Tracer Model 5, version TM5-chem-v3.0). A full description is given…

Authors: Huijnen, Williams, van Weele, van Noije, Krol, Dentener, Segers, Houweling, Peters, de Laat, Boersma, Bergamaschi, van Velthoven, Le Sager, Eskes, Alkemade, Scheele, Nédélec, Pätz

Bibcode: 2010GMD.....3..445H

DOI: 10.5194/gmd-3-445-2010

DOI 2: 10.5194/gmdd-3-1009-2010

Lees meer

Total column concentrations of methane have been retrieved from ground-based solar absorption FTIR spectra in the near-infrared recorded in Paramaribo (Suriname). The methane FTIR observations are compared with TM5 model…

Authors: Petersen, Warneke, Frankenberg, Bergamaschi, Gerbig, Notholt, Buchwitz, Schneising, Schrems

Bibcode: 2010ACP....10.7231P

DOI: 10.5194/acp-10-7231-2010

DOI 2: 10.5194/acpd-10-2303-2010

Lees meer

An important new challenge in the field of multi-angle photo-polarimetric satellite remote sensing is the retrieval of aerosol properties under cloudy conditions. In this paper the possibility has been explored…

Authors: Hasekamp

Bibcode: 2010AMT.....3..839H

DOI: 10.5194/amt-3-839-2010

DOI 2: 10.5194/amtd-3-1229-2010

Lees meer

We analyzed the magnitude, the trends and the uncertainties of fossil-fuel CO2 emissions in the European Union 25 member states (hereafter EU-25), based on emission inventories from energy-use statistics. The…

Authors: Ciais, Paris, Marland, Peylin, Piao, Levin, Pregger, Scholz, Friedrich, Rivier, Houwelling, Schulze

Bibcode: 2010GCBio..16.1395C

DOI: 10.1111/j.1365-2486.2009.02098.x

Lees meer

We present an estimate of net ecosystem exchange (NEE) of CO2 in Europe for the years 2001–2007. It is derived with a data assimilation that uses a large set of…

Authors: Peters, Krol, van der Werf, Houweling, Jones, Hughes, Schaefer, Masarie, Jacobson, Miller, Cho, Ramonet, Schmidt, Ciattaglia, Apadula, Heltai, Meinhardt, di Sarra, Piacentino, Sferlazzo, Aalto, Hatakka, Ström, Haszpra, Meijer, van der…

Bibcode: 2010GCBio..16.1317P

DOI: 10.1111/j.1365-2486.2009.02078.x

Lees meer

Our understanding of the global black carbon (BC) cycle is essentially qualitative due to uncertainties in our knowledge of its properties. This work investigates two source of uncertainties in modelling…

Authors: Vignati, Karl, Krol, Wilson, Stier, Cavalli

Bibcode: 2010ACP....10.2595V

DOI: 10.5194/acp-10-2595-2010

DOI 2: 10.5194/acpd-9-24317-2009

Lees meer

The link between the African Monsoon systems and aerosol loading in Africa is studied using multi-year satellite observations of UV-absorbing aerosols and rain gauge measurements. The main aerosol types occurring…

Authors: de Graaf, Tilstra, Aben, Stammes

Bibcode: 2010AtmEn..44.1274D

DOI: 10.1016/j.atmosenv.2009.12.038

Lees meer

This paper presents a detailed global comparison of Scanning Imaging Absorption Spectrometer for Atmospheric Cartography (SCIAMACHY) and Measurement of Pollution in the Troposphere (MOPITT) carbon monoxide (CO) column measurements for…

Authors: de Laat, Gloudemans, Aben, Schrijver

Bibcode: 2010JGRD..115.6307D

DOI: 10.1029/2009JD012698

Lees meer

Inverse modeling is widely employed to provide “top-down” emission estimates using atmospheric measurements. Here, we analyze the dependence of derived CH4 emissions on the sampling frequency and density of the…

Authors: Villani, Bergamaschi, Krol, Meirink, Dentener

Bibcode: 2010ACP....10.1249V

DOI: 10.5194/acp-10-1249-2010

DOI 2: 10.5194/acpd-9-21073-2009

Lees meer

Wetlands are the largest individual source of methane (CH4), but the magnitude and distribution of this source are poorly understood on continental scales. We isolated the wetland and rice paddy…

Authors: Bloom, Palmer, Fraser, Reay, Frankenberg

Bibcode: 2010Sci...327..322B

DOI: 10.1126/science.1175176

Lees meer

Methane retrievals from the Scanning Imaging Absorption Spectrometer for Atmospheric Chartography (SCIAMACHY) instrument onboard ENVISAT provide important information on atmospheric CH4 sources, particularly in tropical regions which are poorly monitored…

Authors: Bergamaschi, Frankenberg, Meirink, Krol, Villani, Houweling, Dentener, Dlugokencky, Miller, Gatti, Engel, Levin

Bibcode: 2009JGRD..11422301B

DOI: 10.1029/2009JD012287

Lees meer

The potential of the shortwave infrared channel of the atmospheric spectrometer SCIAMACHY on Envisat to provide accurate measurements of total atmospheric water vapour columns is explored. It is shown that…

Authors: Schrijver, Gloudemans, Frankenberg, Aben

Bibcode: 2009AMT.....2..561S

DOI: 10.5194/amt-2-561-2009

DOI 2: 10.5194/amtd-2-1453-2009

Lees meer

We present a new method to obtain accurate SCIAMACHY CO columns over clouded ocean scenes. Based on an improved version of the Iterative Maximum Likelihood Method (IMLM) retrieval algorithm, we…

Authors: Gloudemans, de Laat, Schrijver, Aben, Meirink, van der Werf

Bibcode: 2009ACP.....9.3799G

DOI: 10.5194/acp-9-3799-2009

DOI 2: 10.5194/acpd-9-5583-2009

Lees meer

Presented is a detailed comparison of CH4 and δ13C─CH4 measurements with simulations of the global transport model TM3. Experimental data were obtained during campaigns along the Trans-Siberian railroad in the…

Authors: Tarasova, Houweling, Elansky, Brenninkmeijer

Bibcode: 2009JAtC...63...49T

DOI: 10.1007/s10874-010-9157-y

Lees meer

Terrestrial wetland emissions are the largest single source of the greenhouse gas methane1. Northern high-latitude wetlands contribute significantly to the overall methane emissions from wetlands, but the relative source distribution…

Authors: Mastepanov, Sigsgaard, Dlugokencky, Houweling, Ström, Tamstorf, Christensen

Bibcode: 2008Natur.456..628M

DOI: 10.1038/nature07464

Lees meer

A four-dimensional variational (4D-Var) data assimilation system for inverse modelling of atmospheric methane emissions is presented. The system is based on the TM5 atmospheric transport model. It can be used…

Authors: Meirink, Bergamaschi, Krol

Bibcode: 2008ACP.....8.6341M

DOI: 10.5194/acp-8-6341-2008

DOI 2: 10.5194/acpd-8-12023-2008

Lees meer

A new generation of UV/vis/near-IR satellite instruments like GOME (since 1995), SCIAMACHY (since 2002), OMI (since 2004), and GOME-2 (since 2006) have allowed one to measure backscattered solar radiance from…

Authors: Wagner, Beirle, Deutschmann, Eigemeier, Frankenberg, Grzegorski, Liu, Marbach, Platt, Penning de Vries

Bibcode: 2008JOptA..10j4019W

DOI: 10.1088/1464-4258/10/10/104019

Lees meer

We present a method for the efficient calculation of moderate- and high-resolution spectra of intensity and polarization in absorption bands. This linear-k method explicitly accounts for the vertical distribution of…

Authors: Hasekamp, Butz

Bibcode: 2008JGRD..11320309H

DOI: 10.1029/2008JD010379

Lees meer

A forward atmospheric transport modeling experiment has been coordinated by the TransCom group to investigate synoptic and diurnal variations in CO2. Model simulations were run for biospheric, fossil, and air-sea…

Authors: Law, Peters, RöDenbeck, Aulagnier, Baker, Bergmann, Bousquet, Brandt, Bruhwiler, Cameron-Smith, Christensen, Delage, Denning, Fan, Geels, Houweling, Imasu, Karstens, Kawa, Kleist, Krol, Lin, Lokupitiya, Maki, Maksyutov, Niwa, Onishi, Parazoo, Patra, Pieterse,…

Bibcode: 2008GBioC..22.3009L

DOI: 10.1029/2007GB003050

Lees meer

Recent observations from the Scanning Imaging Absorption Spectrometer for Atmospheric Chartography (SCIAMACHY) instrument aboard ENVISAT have brought new insights in the global distribution of atmospheric methane. In particular, the observations…

Authors: Meirink, Bergamaschi, Frankenberg, D'Amelio, Dlugokencky, Gatti, Houweling, Miller, RöCkmann, Villani, Krol

Bibcode: 2008JGRD..11317301M

DOI: 10.1029/2007JD009740

Lees meer

N2-broadened half widths and pressure shifts were obtained for transitions in the 2ν3 methane band. Laboratory measurements recorded at 0.011 cm-1 resolution with a Bruker 120 HR Fouriertransform spectrometer were…

Authors: Frankenberg, Warneke, Butz, Aben, Hase, Spietz, Brown

Bibcode: 2008ACP.....8.5061F

DOI: 10.5194/acp-8-5061-2008

DOI 2: 10.5194/acpd-8-10021-2008

Lees meer

We evaluated a new approach to take clouds into account in ozone profile retrievals from backscattered ultraviolet radiance measurements as performed by the Global Ozone Monitoring Experiment (GOME). In this…

Authors: van Diedenhoven, Hasekamp, Landgraf

Bibcode: 2008JGRD..11315311V

DOI: 10.1029/2008JD009850

Lees meer

A detailed sensitivity analysis of the Iterative Maximum Likelihood Method (IMLM) algorithm and its application to the SCIAMACHY 2.3 μm spectra is presented. The sensitivity analysis includes a detailed assessment…

Authors: Gloudemans, Schrijver, Hasekamp, Aben

Bibcode: 2008ACP.....8.3999G

DOI: 10.5194/acp-8-3999-2008

DOI 2: 10.5194/acpd-8-5183-2008

Lees meer

In this study, we investigate the capability to retrieve cloud parameters from near-ultraviolet, visible, and near-infrared satellite-based reflectivity measurements. These parameters are essential to enable trace gas retrievals for cloud-contaminated…

Authors: van Deelen, Hasekamp, van Diedenhoven, Landgraf

Bibcode: 2008JGRD..11312204V

DOI: 10.1029/2007JD009129

Lees meer

This study presents a new hypothesis to explain the observed variation of CH4 and δ13C-CH4 over the last millennium. It was originally proposed that the observed minimum of δ13C-CH4 prior…

Authors: Houweling, van der Werf, Klein Goldewijk, RöCkmann, Aben

Bibcode: 2008GBioC..22.1002H

DOI: 10.1029/2007GB002961

Lees meer

An accurate knowledge of the 3-D water vapor (WV) field is still limited, because of the limited capabilities of sensors in the past to cover the whole Earth’s surface and…

Authors: Lang, Casadio, Maurellis, Lawrence

Bibcode: 2007JGRD..11217110L

DOI: 10.1029/2006JD008246

Lees meer

We show that the intensity vector of light reflected by a plane-parallel atmosphere is discontinuous if the directions of incidence and reflection are both horizontal. An exact expression describing the…

Authors: Hovenier, Stam

Bibcode: 2007JQSRT.107...83H

DOI: 10.1016/j.jqsrt.2007.01.056

Lees meer

We present a new method for the retrieval of cloud fraction, cloud optical thickness and cloud top pressure from measurements of the Global Ozone Monitoring Experiment (GOME) and Scanning Imaging…

Authors: van Diedenhoven, Hasekamp, Landgraf

Bibcode: 2007JGRD..11215208V

DOI: 10.1029/2006JD008155

Lees meer

This paper presents a detailed statistical analysis of one year (September 2003 to August 2004) of global Scanning Imaging Absorption Spectrometer for Atmospheric Chartography (SCIAMACHY) carbon monoxide (CO) total column…

Authors: de Laat, Gloudemans, Aben, Krol, Meirink, van der Werf, Schrijver

Bibcode: 2007JGRD..11212310D

DOI: 10.1029/2006JD008256

Lees meer

Air quality and surface emission inversions are likely to be focal points for future satellite missions on atmospheric composition. Most important for these applications is sensitivity to the atmospheric composition…

Authors: Krijger, van Weele, Aben, Frey

Bibcode: 2007ACP.....7.2881K

DOI: 10.5194/acp-7-2881-2007

DOI 2: 10.5194/acpd-6-4465-2006

Lees meer

During the next decade satellites may be expected to provide a promising new source of CO2 data. However, in order for the column-integrated CO2 measurements to be useful for sources/sinks…

Authors: Aben, Hasekamp, Hartmann

Bibcode: 2007JQSRT.104..450A

DOI: 10.1016/j.jqsrt.2006.09.013

Lees meer

Reflectance spectra from 280-1750 nm of typical desert dust aerosol (DDA) and biomass burning aerosol (BBA) scenes over oceans are presented, measured by the space-borne spectrometer Scanning Imaging Absorption Spectrometer…

Authors: de Graaf, Stammes, Aben

Bibcode: 2007JGRD..112.2206D

DOI: 10.1029/2006JD007249

Lees meer

We extend the analysis of a global CH4 data set retrieved from SCIAMACHY (Frankenberg et al., 2006) by making a detailed comparison with inverse TM5 model simulations for 2003 that…

Authors: Bergamaschi, Frankenberg, Meirink, Krol, Dentener, Wagner, Platt, Kaplan, KöRner, Heimann, Dlugokencky, Goede

Bibcode: 2007JGRD..112.2304B

DOI: 10.1029/2006JD007268

Lees meer

Laboratory experiments have been carried out to elucidate the role of surfactants on the primary marine aerosol production of submicron marine aerosols. A synthetic surfactant SDS was used in conjunction…

Authors: Sellegri, O'Dowd, Yoon, Jennings, de Leeuw

Bibcode: 2006JGRD..11122215S

DOI: 10.1029/2005JD006658

Lees meer

We analyze present-day and future carbon monoxide (CO) simulations in 26 state-of-the-art atmospheric chemistry models run to study future air quality and climate change. In comparison with near-global satellite observations…

Authors: Shindell, Faluvegi, Stevenson, Krol, Emmons, Lamarque, PéTron, Dentener, Ellingsen, Schultz, Wild, Amann, Atherton, Bergmann, Bey, Butler, Cofala, Collins, Derwent, Doherty, Drevet, Eskes, Fiore, Gauss, Hauglustaine, Horowitz, Isaksen, Lawrence, Montanaro, Müller,…

Bibcode: 2006JGRD..11119306S

DOI: 10.1029/2006JD007100

Lees meer

The single-scattering properties of Gaussian random spheres are calculated using the discrete dipole approximation. The ensemble of model particles is assumed to be representative for a feldspar dust sample that…

Authors: Veihelmann, Nousiainen, Kahnert, van der Zande

Bibcode: 2006JQSRT.100..393V

DOI: 10.1016/j.jqsrt.2005.11.053

Lees meer

Total column amounts of CO, CH4, CO2 and N2O retrieved from SCIAMACHY nadir observations in its near-infrared channels have been compared to data from a ground-based quasi-global network of Fourier-transform…

Authors: Dils, de Mazière, Müller, Blumenstock, Buchwitz, de Beek, Demoulin, Duchatelet, Fast, Frankenberg, Gloudemans, Griffith, Jones, Kerzenmacher, Kramer, Mahieu, Mellqvist, Mittermeier, Notholt, Rinsland, Schrijver, Smale, Strandberg, Straume, Stremme, Strong, Sussmann, Taylor,…

Bibcode: 2006ACP.....6.1953D

DOI: 10.5194/acp-6-1953-2006

DOI 2: 10.5194/acpd-5-2677-2005

Lees meer

Global Ozone Monitoring Experiment (GOME) Absorbing Aerosol Index (AAI) and AAI-related residue data were used to investigate areas with UV-absorbing aerosols. Time series of regionally averaged residues show the seasonal…

Authors: de Graaf, Stammes, Aben

Bibcode: 2006ACPD....6.1321D

DOI: 10.5194/acpd-6-1321-2006

Lees meer

In August/September of 2001, the R/P FLIP and CIRPAS Twin Otter research aircraft were deployed to the eastern coast of Oahu, Hawaii, as part of the Rough Evaporation Duct (RED)…

Authors: Reid, Brooks, Crahan, Hegg, Eck, O'Neill, de Leeuw, Reid, Anderson

Bibcode: 2006JGRD..111.2202R

DOI: 10.1029/2005JD006200

Lees meer

We present a data assimilation system to estimate surface fluxes of CO2 and other trace gases from observations of their atmospheric abundances. The system is based on ensemble data assimilation…

Authors: Peters, Miller, Whitaker, Denning, Hirsch, Krol, Zupanski, Bruhwiler, Tans

Bibcode: 2005JGRD..11024304P

DOI: 10.1029/2005JD006157

Lees meer

SCIAMACHY CO2 measurements show a large variability in total column CO2 over the Sahara desert of up to 10%, which is not anticipated from in situ measurements and cannot be…

Authors: Houweling, Hartmann, Aben, Schrijver, Skidmore, Roelofs, Breon

Bibcode: 2005ACP.....5.3003H

DOI: 10.5194/acp-5-3003-2005

DOI 2: 10.5194/acpd-5-3313-2005

Lees meer

We present a novel approach to the retrieval of aerosol properties from multiple-wavelength single-viewing-angle measurements of intensity as well as polarization. Instead of assuming a number of standard aerosol models,…

Authors: Hasekamp, Landgraf

Bibcode: 2005JGRD..11020207H

DOI: 10.1029/2005JD006212

Lees meer

SCIAMACHY on ENVISAT allows measurement of different trace gases including those most abundant in the troposphere (e.g. CO2, NO2, CH4, BrO, SO2). However, clouds in the observed scenes can severely…

Authors: Krijger, Aben, Schrijver

Bibcode: 2005ACP.....5.2729K

DOI: 10.5194/acp-5-2729-2005

DOI 2: 10.5194/acpd-5-815-2005

Lees meer

The near-infrared spectra measured with the SCIAMACHY instrument on board the ENVISAT satellite suffer from several instrument calibration problems. The effects of three important instrument calibration issues on the retrieved…

Authors: Gloudemans, Schrijver, Kleipool, van den Broek, Straume, Lichtenberg, van Hees, Aben, Meirink

Bibcode: 2005ACP.....5.2369G

DOI: 10.5194/acp-5-2369-2005

DOI 2: 10.5194/acpd-5-1733-2005

Lees meer

We perform surface pressure retrievals from cloud-free Oxygen A band measurements of SCIAMACHY. These retrievals can be well validated because surface pressure is a quantity that is, in general, accurately…

Authors: van Diedenhoven, Hasekamp, Aben

Bibcode: 2005ACP.....5.2109V

DOI: 10.5194/acp-5-2109-2005

DOI 2: 10.5194/acpd-5-1469-2005

Lees meer

A method is presented for validation of space-based polarization measurements. The method is based on a determination of limits in the (fractional) polarization of reflected solar light as measured by…

Authors: Krijger, Tanzi, Aben, Paul

Bibcode: 2005JGRD..110.7305K

DOI: 10.1029/2004JD005184

Lees meer

We present a plane parallel radiative transfer model for polarized light that provides the intensity vector field as well as analytical derivatives of the four Stokes parameters at the top…

Authors: Hasekamp, Landgraf

Bibcode: 2005JGRD..110.4203H

DOI: 10.1029/2004JD005260

Lees meer

Currently two polar orbiting satellite instruments measure CO2 concentrations in the Earth’s atmosphere, while other missions are planned for the coming years. In the future such instruments might become powerful…

Authors: Houweling, Breon, Aben, Rödenbeck, Gloor, Heimann, Ciais

Bibcode: 2004ACP.....4..523H

DOI: 10.5194/acp-4-523-2004

DOI 2: 10.5194/acpd-3-5237-2003

Lees meer

We have compared satellite and balloon observations of methane (CH4) and hydrogen fluoride (HF) during the Arctic winter 1999/2000 with results from the MA-ECHAM4 middle atmospheric general circulation model (GCM).…

Authors: van Aalst, van den Broek, Bregman, Brühl, Steil, Toon, Garcelon, Hansford, Jones, Gardiner, Roelofs, Lelieveld, Crutzen

Bibcode: 2004ACP.....4...81V

DOI: 10.5194/acp-4-81-2004

DOI 2: 10.5194/acpd-3-2465-2003

Lees meer