About
Carbon dioxide (CO2) and methane (CH4) are the two most important anthropogenic (“human-made”) greenhouse gases (GHG) driving global climate change.
Increasing atmospheric concentrations of these Essential Climate Variables (ECVs) leads to global warming with adverse consequences such as rising sea levels. It is therefore important to monitor the spatial distribution and the time evolution of these gases, and to improve our knowledge of their various natural and anthropogenic sources and sink.
The focus of the previous GHG-CCI project (2010-2018) was to improve retrieval algorithms needed to generate high-quality CO2 and CH4 atmospheric data products from the satellite sensors SCIAMACHY/ENVISAT, GOSAT, and IASI. Since 2018, these products are generated operationally via the Copernicus Climate Change Service and they are available via the Copernicus Climate Data Store for all interested users and free of charge.
The focus of the new GHG-CCI+ project, which started in March 2019, is to perform research and development (R&D) needed to generate new ECV CO2 and CH4 satellite-derived products, which have not been generated in the GHG-CCI pre-cursor project.
Objective
The objective of the GHG-CCI+ project is to further develop retrieval algorithms needed to generate new high quality satellite-derived CO2 and CH4 atmospheric data products. These ECV data products are column-averaged dry-air mole fractions (molecular mixing ratios) of CO2 and CH4, denoted XCO2 and XCH4, respectively. Specifically, the following products are generated:
- XCO2 products:
- CO2_OC2_FOCA: retrieved from OCO-2 using University of Bremen’s FOCAL algorithm
- CO2_TAN_OCFP: retrieved from TanSat using University of Leicester’s OCFP (or UoL-FP) algorithm
- CO2_GO2_SRFP: retrieved from GOSAT-2 using SRON’s SRFP (or RemoTeC full physics) algorithm
- XCH4 products:
- CH4_S5P_WFMD: retrieved from Sentinel-5-Precursor (S5P) using University of Bremen’s WFMD (or WFM-DOAS) algorithm
- CH4_GO2_SRFP and CH4_GO2_SRPR: retrieved from GOSAT-2 using SRON’s RemoTeC algorithm (SRFP for the “full physics” product and SRPR for the “proxy” product)
After validation and initial user assessments, the data products are made available via the CCI Data Portal. Each year, a new data set will be released using improved algorithms and extended data coverage. The planned dates for product release are:
- Data set CRDP5:
- Available via CCI Open Data Portal:
- Products: CO2_OC2_FOCA, CH4_S5P_WFMD, CO2_TAN_OCFP
- Data set CRDP6:
- Available in Feb/Mar 2021
- Products: all (see above)
- Data set CRDP7:
- Available in Feb/Mar 2022
- Products: all (see above)
Video: Within ESA’s Climate Change Initiative Project, expert Michael Buchwitz, of University of Bremen in Germany, explains the importance of greenhouse gases as an ECV to understand our changing world.
Data
The GHG-CCI+ project satellite-derived data products are available via CEDA (click here for search and download).
Data products generated in the GHG-CCI pre-cursor project are now generated operationally via the Copernicus Climate Change Service (C3S) and the corresponding data product are available via the Copernicus Climate Data Store (CDS). Information on these and other satellite-derived CO2 and CH4 data products can also be found HERE.
In the new GHG-CCI+ project we generate new data products (see HERE) which can be obtained from CEDA; see also CCI Open Data Portal. Below we show some images of these new GHG-CCI+ data products.
Below are some first methane maps retrieved using the scientific retrieval algorithm WFM-DOAS (or WFMD) from the radiance spectra measured by the TROPOMI instrument on-board the Sentinel-5-Precursor (S5P) satellite. Details on the retrieval algorithm and on the validation of this data product are presented in Schneising et al., 2019. Also shown is a key figure from our study "Remote sensing of methane leakage from natural gas and petroleum systems revisited" (Schneising et al., 2020).
Atmospheric methane 2021 retrieved from TROPOMI/Sentinel-5-Precursor using the WFMD retrieval algorithm developed at University of Bremen (Schneising et al., 2022). Access to data and documentation.
Key Documents
Team
The GHG team consists of the following organisations.
Project coordination
Institute of Environmental Physics (IUP), University of Bremen (IUP-UB): Dr. Michael Buchwitz is Science Leader, Dr. Maximilian Reuter is Project Manager supported by Dr. Oliver Schneising
Retrieval team
- Institute of Environmental Physics (IUP), University of Bremen (IUP-UB), Germany: Maximilian Reuter, Oliver Schneising, Michael Buchwitz
- SRON, Leiden, The Netherlands: Andrew Barr, Tobias Borsdorff, Jochen Landgraf, Otto Hasekamp (previously: Ilse Aben, Trismono Krisna, Lianghai Wu)
- University of Leicester, UK (until end of phase 1, mid 2022): Hartmut Boesch, Simon Preval, Dongxu Yang
Validation team
- BIRA/IASB, Brussels, Belgium: Lead: Bart Dils
Engineering team
- DLR, Oberpfaffenhofen, Germany: Lead: Guenther Lichtenberg
Climate Research Group (CRG)
- LSCE, Gif-sur-Yvette, France: Lead: Frederic Chevallier
- DLR, Oberpfaffenhofen, Germany (previously MPI-BGC, Jena, Germany): Julia Marshall
Publications
Click on the following links for publications relating to the GHG project.
(*) GHG-CCI funding acknowledged and/or using GHG-CCI data sets.
(*) Agustí-Panareda, A., Barré, J., Massart, S., Inness, A., Aben, I., Ades, M., Baier, B. C., Balsamo, G., Borsdorff, T., Bousserez, N., Boussetta, S., Buchwitz, M., Cantarello, L., Crevoisier, C., Engelen, R., Eskes, H., Flemming, J., Garrigues, S., Hasekamp, O., Huijnen, V., Jones, L., Kipling, Z., Langerock, B., McNorton, J., Meilhac, N., Noël, S., Parrington, M., Peuch, V.-H., Ramonet, M., Razinger, M., Reuter, M., Ribas, R., Suttie, M., Sweeney, C., Tarniewicz, J., and Wu, L.: Technical note: The CAMS greenhouse gas reanalysis from 2003 to 2020, Atmos. Chem. Phys., 23, 3829–3859, https://doi.org/10.5194/acp-23-3829-2023, 2023.
(*) Alexe, M., P. Bergamaschi, A. Segers, R. Detmers, A. Butz, O. Hasekamp, S. Guerlet, R. Parker, H. Boesch, C. Frankenberg, R. A. Scheepmaker, E. Dlugokencky, C. Sweeney, S. C. Wofsy, and E. A. Kort, Inverse modeling of CH4 emissions for 2010–2011 using different satellite retrieval products from GOSAT and SCIAMACHY, Atmos. Chem. Phys., 15, 113–133, doi:10.5194/acp-15-113-2015, 2015.
(*) Balasus, N., Jacob, D. J., Lorente, A., Maasakkers, J. D., Parker, R. J., Boesch, H., Chen, Z., Kelp, M. M., Nesser, H., and Varon, D. J.: A blended TROPOMI+GOSAT satellite data product for atmospheric methane using machine learning to correct retrieval biases, Atmos. Meas. Tech., 16, 3787–3807, https://doi.org/10.5194/amt-16-3787-2023, 2023.
(*) Basu, S., Krol, M., Butz, A., et al., The seasonal variation of the CO2 flux over Tropical Asia estimated from GOSAT, CONTRAIL and IASI, Geophys. Res. Lett., doi: 10.1002/2013GL059105, 2014.
(*) Basu, S., S. Guerlet, A. Butz, S. Houweling, O. Hasekamp, I. Aben, P. Krummel, P. Steele, R. Langenfelds, M. Torn, S. Biraud, B. Stephens, A. Andrews, and D. Worthy, Global CO2 fluxes estimated from GOSAT retrievals of total column CO2, Atmos. Chem. Phys., 13, 8695-8717, 2013.
Bergamaschi, P., Houweling, H., Segers, A., et al., Atmospheric CH4 in the first decade of the 21st century: Inverse modeling analysis using SCIAMACHY satellite retrievals and NOAA surface measurements, J. Geophys. Res., 118, 7350-7369, doi:10.1002/jrgd.50480, 2013.
(*) Borchardt, J., S. J. Harris, J. M. Hacker, M. Lunt, S. Krautwurst, M. Bai, H. Bösch, H. Bovensmann, J. P. Burrows, S. Chakravarty, R. A. Field, K. Gerilowski, O. Huhs, W. Junkermann, B. F. J. Kelly, M. Kumm, W. Lieff, A. McGrath, A. Murphy, J. Schindewolf, and J. Thoböll, Insights into Elevated Methane Emissions from an Australian Open-Cut Coal Mine Using Two Independent Airborne Techniques, Environmental Science & Technology Letters, DOI: 10.1021/acs.estlett.4c01063, https://doi.org/10.1021/acs.estlett.4c01063, 2025.
(*) Buchwitz, M., Reuter, M., Noël, S., Bramstedt, K., Schneising, O., Hilker, M., Fuentes Andrade, B., Bovensmann, H., Burrows, J. P., Di Noia, A., Boesch, H., Wu, L., Landgraf, J., Aben, I., Retscher, C., O'Dell, C. W., and Crisp, D.: Can a regional-scale reduction of atmospheric CO2 during the COVID-19 pandemic be detected from space? A case study for East China using satellite XCO2 retrievals, Atmos. Meas. Tech., 14, 2141–2166, https://doi.org/10.5194/amt-14-2141-2021, 2021.
(*) Buchwitz, M., Reuter, M., Schneising, O., Bovensmann, H., Burrows, J. P., Boesch, H., Anand, J., Parker, R., Detmers, R. G., Aben, I., Hasekamp, O. P., Crevoisier, C., Armante, R., Zehner, C., Schepers, D., Copernicus Climate Change Service (C3S) Global Satellite Observations of Atmospheric Carbon Dioxide and Methane, Adv. Astronaut. Sci. Technol., https://doi.org/10.1007/s42423-018-0004-6, 2018.
(*) Buchwitz, M., Reuter, M., Schneising, O., Noel, S., Gier, B., Bovensmann, H., Burrows, J. P., Boesch, H., Anand, J., Parker, R. J., Somkuti, P., Detmers, R. G., Hasekamp, O. P., Aben, I., Butz, A., Kuze, A., Suto, H., Yoshida, Y., Crisp, D., and O'Dell, C.: Computation and analysis of atmospheric carbon dioxide annual mean growth rates from satellite observations during 2003-2016, Atmos. Chem. Phys., 18, 17355-17370, https://doi.org/10.5194/acp-18-17355-2018, 2018.
(*) Buchwitz, M., Schneising, O., Reuter, M., Heymann, J., Krautwurst, S., Bovensmann, H., Burrows, J. P., Boesch, H., Parker, R. J., Somkuti, P., Detmers, R. G., Hasekamp, O. P., Aben, I., Butz, A., Frankenberg, C., Turner, A. J., Satellite-derived methane hotspot emission estimates using a fast data-driven method, Amos. Chem. Phys., 17, 5751-5774, doi:10.5194/acp-17-5751-2017, 2017.
(*) Buchwitz, M., Reuter, M., Schneising, O., Hewson, W., Detmers, R. G., Boesch, H., Hasekamp, O. P., Aben, I., Bovensmann, H., Burrows, J. P., Butz, A., Chevallier, F., Dils, B., Frankenberg, C., Heymann, J., Lichtenberg, G., De Mazière, M., Notholt, J., Parker, R., Warneke, T., Zehner, C., Griffith, D. W. T., Deutscher, N. M., Kuze, A., Suto, H., and Wunch, D.: Global satellite observations of column-averaged carbon dioxide and methane: The GHG-CCI XCO2 and XCH4 CRDP3 data set, Remote Sensing of Environment 203, 276–295, http://dx.doi.org/10.1016/j.rse.2016.12.027, 2017.
(*) Buchwitz M., M. Reuter, O. Schneising, H. Boesch, I. Aben, M. Alexe, P. Bergamaschi, H. Bovensmann, D. Brunner, B. Buchmann, J. P. Burrows, A. Butz, F. Chevallier, C. D. Crevoisier, M. De Mazière, E. De Wachter, R. Detmers, B. Dils, L. Feng, C. Frankenberg, O. P. Hasekamp, W. Hewson, J. Heymann, S. Houweling, T. Kaminski, A. Laeng, T. T. v. Leeuwen, G. Lichtenberg, J. Marshall, S. Noël, J. Notholt, P. I. Palmer, R. Parker, A.-M. Sundström, M. Scholze, G. P. Stiller, T. Warneke, C. Zehner, THE GHG-CCI PROJECT OF ESA’S CLIMATE CHANGE INITIATIVE: DATA PRODUCTS AND APPLICATION, proceeding ESA Living Planet Symposium, 9-13 May 2016, Prague, Czech Republic, ESA Special Publication SP-740 (CR-ROM), 2016.
(*) Buchwitz, M., M. Reuter, O. Schneising, H. Boesch, I. Aben, M. Alexe, R. Armante, P. Bergamaschi, H. Bovensmann, D. Brunner, B. Buchmann, J. P. Burrows, A. Butz, F. Chevallier, A. Chedin, C. D. Crevoisier, M. De Maziere , E. De Wachter, R. Detmers, B. Dils, C. Frankenberg, S. Gonzi, P. Hahne, O. P. Hasekamp, W. Hewson, J. Heymann, S. Houweling, M. Hilker, T. Kaminski, G. Kuhlmann, A. Laeng, T. T. v. Leeuwen, G. Lichtenberg, J. Marshall, S. Noel, J. Notholt, P. I. Palmer, R. Parker, P. Somkuti, M. Scholze, G. P. Stiller, T. Warneke, C. Zehner, THE GREENHOUSE GAS PROJECT OF ESA's CLIMATE CHANGE INITIATIVE (GHG-CCI): PHASE 2 ACHIEVEMENTS AND FUTURE PLANS, ESA ATMOS 2015 conference proceedings (ESA SP-735), Heraklion, Greece, 8-12 June 2015, 2015.
(*) Buchwitz, M., M. Reuter, O. Schneising H. Boesch, I. Aben, M. Alexe, R. Armante, P. Bergamaschi, H. Bovensmann, D. Brunner, B. Buchmann, J. P. Burrows, A. Butz, F. Chevallier, A. Chedin, C. D. Crevoisier, S. Gonzi, M. De Maziere, E. De Wachter, R. Detmers, B. Dils, C. Frankenberg, P. Hahne, O. P. Hasekamp, W. Hewson, J. Heymann, S. Houweling, M. Hilker, T. Kaminski, G. Kuhlmann, A. Laeng, T. T. v. Leeuwen, G. Lichtenberg, J. Marshall, S. Noel J. Notholt, P. Palmer, R. Parker, M. Scholze, G. P. Stiller, T. Warneke, C. Zehner, The greenhouse gas project of ESA's Climate Change Initiative (GHG-CCI): Overview, achievements and future plans, The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume XL-7/W3, 2015
36th International Symposium on Remote Sensing of Environment, 11–15 May 2015, Berlin, Germany, 2015.
(*) Buchwitz, M., M. Reuter, O. Schneising, H. Boesch, S. Guerlet, B. Dils, I. Aben, R. Armante, P. Bergamaschi, T. Blumenstock, H. Bovensmann, D. Brunner, B. Buchmann, J. P. Burrows, A. Butz, A. Chédin, F. Chevallier, C. D. Crevoisier, N. M. Deutscher, C. Frankenberg, F. Hase, O. P. Hasekamp, J. Heymann, T. Kaminski, A. Laeng, G. Lichtenberg, M. De Mazière, S. Noël, J. Notholt, J. Orphal, C. Popp, R. Parker, M. Scholze, R. Sussmann, G. P. Stiller, T. Warneke, C. Zehner, A. Bril, D. Crisp, D. W. T. Griffith, A. Kuze, C. O’Dell, S. Oshchepkov, V. Sherlock, H. Suto, P. Wennberg, D. Wunch, T. Yokota, Y. Yoshida, The Greenhouse Gas Climate Change Initiative (GHG-CCI): comparison and quality assessment of near-surface-sensitive satellite-derived CO2 and CH4 global data sets, Remote Sensing of Environment, 162, 344-362, doi:10.1016/j.rse.2013.04.024, 2015.
(*) Buchwitz, M., Reuter, M., Schneising, O., Boesch, H., et al., THE GREENHOUSE GAS PROJECT OF ESA’S CLIMATE CHANGE INITIATIVE (GHG-CCI): PHASE 1 ACHIEVEMENTS, Proceedings ESA Living Planet Symposium, 9-13 Sept 2013, Edinburgh, ESA Special Publication SP-722, 2013.
Buchwitz, M., M. Reuter, H. Bovensmann, D. Pillai, J. Heymann, O. Schneising, V. Rozanov, T. Krings, J. P. Burrows, H. Boesch, C. Gerbig, Y. Meijer, and A. Loescher, Carbon Monitoring Satellite (CarbonSat): assessment of atmospheric CO2 and CH4 retrieval errors by error parameterization, Atmos. Meas. Tech., 6, 3477-3500, 2013.
Buchwitz, M., M. Reuter, H. Bovensmann, D. Pillai, J. Heymann, O. Schneising, V. Rozanov, T. Krings, J. P. Burrows, H. Boesch, C. Gerbig, Y. Meijer, and A. Loescher, Carbon Monitoring Satellite (CarbonSat): assessment of scattering related atmospheric CO2 and CH4 retrieval errors and first results on implications for inferring city CO2 emissions, Atmos. Meas. Tech. Discuss., 6, 4769-4850, 2013.
(*) Buchwitz, M., Reuter, M., Schneising, O., Boesch, H., The GHG-CCI project of ESA's Climate Change Initiative: Overview and Status, proceedings of ESA ATMOS 2012 conference, ESA Special Publication SP-708, Bruges, Belgium, 18-22 June 2012.
(*) Butz, A., S. Guerlet, O. Hasekamp, D. Schepers, A. Galli, I. Aben, C. Frankenberg, J.-M. Hartmann, H. Tran, A. Kuze, G. Keppel-Aleks, G. Toon, D. Wunch, P. Wennberg, N. Deutscher, D. Griffith, R. Macatangay, J. Messerschmidt, J. Notholt, T. Warneke, Toward accurate CO2 and CH4 observations from GOSAT, Geophys. Res. Lett., 38, L14812, doi:10.1029/2011GL047888, 2011.
Butz, A., O.P. Hasekamp, C. Frankenberg, J. Vidot, and I. Aben, CH4 retrievals from space-based solar backscatter measurements: performance evaluation against simulated aerosol and cirrus loaded scenes, J. Geophys. Res., doi:10.1029/2010JD014514, 2010.
(*) Chevallier, F., Remaud, M., O'Dell, C. W., Baker, D., Peylin, P., and Cozic, A.: Objective evaluation of surface- and satellite-driven carbon dioxide atmospheric inversions, Atmos. Chem. Phys., 19, 14233–14251, https://doi.org/10.5194/acp-19-14233-2019, 2019.
(*) Chevallier, F., Palmer, P.I., Feng, L., Boesch, H., O'Dell, C.W., Bousquet, P., Towards robust and consistent regional CO2 flux estimates from in situ and space-borne measurements of atmospheric CO2, Geophys. Res. Lett., 41, 1065-1070, DOI: 10.1002/2013GL058772, 2014.
(*) Chevallier, F., and C. W. O'Dell, Error statistics of Bayesian CO2 flux inversion schemes as seen from GOSAT, Geophys. Res. Lett., doi: 10.1002/grl.50228, 2013.
Cogan, A. J., H. Boesch, H., R. J. Parker, L. Feng, P. I. Palmer, J.-F. L. Blavier, N. M. Deutscher, R. Macatangay, J. Notholt, C. Roehl, T. Warneke, D. Wunch, Atmospheric carbon dioxide retrieved from the Greenhouse gases Observing SATellite (GOSAT): Comparison with ground-based TCCON observations and GEOS-Chem model calculations, J. Geophys. Res., 117, D21301, doi:10.1029/2012JD018087, 2012.
Cressot, C., F. Chevallier, P. Bousquet, C. Crevoisier, E. J. Dlugokencky, A. Fortems-Cheiney, C. Frankenberg, R. Parker, I. Pison, R. A. Scheepmaker, S. A. Montzka, P. B. Krummel, L. P. Steele, and R. L. Langenfelds, On the consistency between global and regional methane emissions inferred from SCIAMACHY, TANSO-FTS, IASI and surface measurements, Atmos. Chem. Phys., 14, 577-592, 2014.
(*) Crevoisier, C., D. Nobileau, R. Armante, L. Crépeau, T. Machida, Y. Sawa, H. Matsueda, T. Schuck, T. Thonat, J. Pernin, N. A. Scott, and A. Chédin, The 2007–2011 evolution of tropical methane in the mid-troposphere as seen from space by MetOp-A/IASI, Atmos. Chem. Phys., 13, 4279-4289, 2013.
(*) Detmers, R. G., O. Hasekamp, I. Aben, S. Houweling, T. T. van Leeuwen, A. Butz, J. Landgraf, P. Koehler, L. Guanter, and B. Poulter, Anomalous carbon uptake in Australia as seen by GOSAT, Geophys. Res. Lett., 42, doi:10.1002/2015GL065161, 2015.
(*) Dils, B., M. Buchwitz, M. Reuter, O. Schneising, H. Boesch, R. Parker, S. Guerlet, I. Aben, T. Blumenstock, J. P. Burrows, A. Butz, N. M. Deutscher, C. Frankenberg, F. Hase, O. P. Hasekamp, J. Heymann, M. De Maziere, J. Notholt, R. Sussmann, T. Warneke, D. Griffith, V. Sherlock, and D. Wunch, The Greenhouse Gas Climate Change Initiative (GHG-CCI): comparative validation of GHG-CCI SCIAMACHY/ENVISAT and TANSO-FTS/GOSAT CO2 and CH4 retrieval algorithm products with measurements from the TCCON, Atmos. Meas. Tech., 7, 1723-1744, 2014.
(*) Feng, L., P. I. Palmer, R. J. Parker, N. M. Deutscher, D. G. Feist, R. Kivi, I. Morino, and R. Sussmann, Estimates of European uptake of CO2 inferred from GOSAT XCO2 retrievals: sensitivity to measurement bias inside and outside Europe, Atmos. Chem. Phys., 16, 1289-1302, doi:10.5194/acp-16-1289-2016, 2016.
(*) Feng, L., Palmer, P. I., Bösch, H., Parker, R. J., Webb, A. J., Correia, C. S. C., Deutscher, N. M., Domingues, L. G., Feist, D. G., Gatti, L. V., Gloor, E., Hase, F., Kivi, R., Liu, Y., Miller, J. B., Morino, I., Sussmann, R., Strong, K., Uchino, O., Wang, J., and Zahn, A., Consistent regional fluxes of CH4 and CO2
inferred from GOSAT proxy XCH4:XCO2 retrievals, 2010–2014, Atmos. Chem. Phys. Discuss., doi:10.5194/acp-2016-868, 2016.
Frankenberg, C., I. Aben,P. Bergamaschi, E. J. Dlugokencky, R. van Hees, S. Houweling, P. van der Meer,R. Snel,and P. Tol: Global column-averaged methane mixing ratios from 2003-2009 as derived from SCIAMACHY: Trends and variability, J. Geophys. Res., doi:10.1029/2010JD014849, 2011.
(*) Fraser, A., P. I. Palmer, L. Feng, H. Bösch, R. Parker, E. J. Dlugokencky, P. B. Krummel, and R. L. Langenfelds, Estimating regional fluxes of CO2 and CH4 using space-borne observations of XCH4 : XCO2, Atmos. Chem. Phys., 14, 12883-12895, doi:10.5194/acp-14-12883-2014, 2014.
(*) Fraser, A., Palmer, P. I., Feng, L., Boesch, H., Cogan, A., Parker, R., Dlugokencky, E. J., Fraser, P. J., Krummel, P. B., Langenfelds, R. L., O'Doherty, S., Prinn, R. G., Steele, L. P., van der Schoot, M., and Weiss, R. F.: Estimating regional methane surface fluxes: the relative importance of surface and GOSAT mole fraction measurements, Atmos. Chem. Phys., 13, 5697-5713, doi:10.5194/acp-13-5697-2013, 2013.
Galli, A., Guerlet, S., Butz, A., et al., The impact of spectral resolution on satellite retrieval accuracy of CO2 and CH4, Atmos. Meas. Tech., 7, 1105-1119, 2014.
(*) Ganesan, A. L., M. Rigby, M. F. Lunt, R. J. Parker, H. Boesch, N. Goulding, T. Umezawa, A. Zahn, A. Chatterjee, R. G. Prinn, Y. K. Tiwari, M. van der Schoot, P. B. Krummel, Atmospheric observations show accurate reporting and little growth in India’s methane emissions,
Nature Communicationsvolume 8, Article number: 836, 2017.
(*) Gier, B. K., Buchwitz, M., Reuter, M., Cox, P. M., Friedlingstein, P., and Eyring, V.: Spatially resolved evaluation of Earth system models with satellite column-averaged CO2, Biogeosciences, 17, 6115-6144, https://doi.org/10.5194/bg-17-6115-2020, 2020.
(*) Guerlet, S., S. Basu, A. Butz, M. Krol, P. Hahne, S. Houweling, O. P. Hasekamp and I. Aben, Reduced carbon uptake during the 2010 Northern Hemisphere summer from GOSAT, Geophys. Res. Lett., doi: 10.1002/grl.50402, 2013.
(*) Guerlet, S., A. Butz, D. Schepers, S. Basu, O. P. Hasekamp, A. Kuze, T. Yokota, J.-F. Blavier, N. M. Deutscher, D. W. T. Griffith, F. Hase, E. Kyro, I. Morino, V. Sherlock, R. Sussmann, A. Galli and I. Aben, Impact of aerosol and thin cirrus on retrieving and validating XCO2 from GOSAT shortwave infrared measurements, J. Geophys. Res., doi: 10.1002/jgrd.50332, 2013.
(*) Hachmeister, J., Schneising, O., Buchwitz, M., Lorente, A., Borsdorff, T., Burrows, J. P., Notholt, J., and Buschmann, M.: On the influence of underlying elevation data on Sentinel-5 Precursor TROPOMI satellite methane retrievals over Greenland, Atmos. Meas. Tech., 15, 4063–4074, https://doi.org/10.5194/amt-15-4063-2022, 2022.
(*) Hachmeister, J., Schneising, O., Buchwitz, M., Burrows, J. P., Notholt, J., and Buschmann, M.: Zonal variability of methane trends derived from satellite data, Atmos. Chem. Phys., 24, 577–595, https://doi.org/10.5194/acp-24-577-2024, 2024.
(*) Hayman, G. D., O'Connor, F. M., Dalvi, M., Clark, D. B., Gedney, N., Huntingford, C., Prigent, C., Buchwitz, M., Schneising, O., Burrows, J. P., Wilson, C., Richards, N., Chipperfield, M., Comparison of the HadGEM2 climate-chemistry model against in-situ and SCIAMACHY atmospheric methane data, Atmos. Chem. Phys., 14, 13257-13280, doi:10.5194/acp-14-13257-2014, 2014.
(*) He, Z., Lei, L., Zhang, Y., Sheng, M., Wu, C., Li, L., Zeng, Z.-C., Welp, L.R., Spatio-Temporal Mapping of Multi-Satellite Observed Column Atmospheric CO2 Using Precision-Weighted Kriging Method, Remote Sens., 12, 576, 2020.
(*) Hegglin, M.I., Bastos, A., Bovensmann, H., Buchwitz, M., Fawcett, D., Ghent, D., Kulk, G., Sathyendranath, S., Shepherd, T.G., Quegan, S., Röthlisberger, R., Briggs, S., Buontempo, C., Cazenave, A., Chuvieco, E., Ciais, P., Crisp, D., Engelen, R., Fadnavis, S., Herold, M., Horwath, M., Jonsson, O., Kpaka, G., Merchant, C.J., Mielke, C., Nagler, T., Paul, F., Popp, T., Quaife, T., Rayner, N.A., Robert, C., Schröder, M., Sitch, S., Venturini, S., van der Schalie, R., van der Vliet, M., Wigneron, J.-P. and Woolway, R.I, Space-based Earth observation in support of the UNFCCC Paris Agreement, Front. Environ. Sci. 10:941490, doi: 10.3389/fenvs.2022.941490, 2022
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(*) Schneising, O., Buchwitz, M., Hachmeister, J., Vanselow, S., Reuter, M., Buschmann, M., Bovensmann, H., and Burrows, J. P.: Advances in retrieving XCH4 and XCO from Sentinel-5 Precursor: improvements in the scientific TROPOMI/WFMD algorithm, Atmos. Meas. Tech., 16, 669–694, https://doi.org/10.5194/amt-16-669-2023, 2023.
(*) Schneising, O., Buchwitz, M., Reuter, M., Vanselow, S., Bovensmann, H., and Burrows, J. P.: Remote sensing of methane leakage from natural gas and petroleum systems revisited, Atmos. Chem. Phys., 20, 9169-9182, https://doi.org/10.5194/acp-20-9169-2020, 2020.
(*) Schneising, O., Buchwitz, M., Reuter, M., Bovensmann, H., and Burrows, J. P.: Severe Californian wildfires in November 2018 observed from space: the carbon monoxide perspective, Atmos. Chem. Phys., 20, 3317–3332, https://doi.org/10.5194/acp-20-3317-2020, 2020.
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Contacts
Scientific Leader: Michael Buchwitz
ESA Technical Officer: Christian Retscher
