Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-7/W3, 165-172, 2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
28 Apr 2015
The greenhouse gas project of ESA’s climate change initiative (GHG-CCI): overview, achievements and future plans
M. Buchwitz1, M. Reuter1, O. Schneising1, H. Boesch2, I. Aben3, M. Alexe4, R. Armante5, P. Bergamaschi4, H. Bovensmann1, D. Brunner6, B. Buchmann6, J. P. Burrows1, A. Butz7, F. Chevallier8, A. Chédin5, C. D. Crevoisier5, S. Gonzi9, M. De Mazière10, E. De Wachter10, R. Detmers3, B. Dils10, C. Frankenberg11, P. Hahne7, O. P. Hasekamp3, W. Hewson2, J. Heymann1, S. Houweling3, M. Hilker1, T. Kaminski12, G. Kuhlmann6, A. Laeng7, T. T. v. Leeuwen3, G. Lichtenberg13, J. Marshall14, S. Noël1, J. Notholt1, P. Palmer9, R. Parker2, M. Scholze15, G. P. Stiller7, T. Warneke1, and C. Zehner16 1Institute of Environmental Physics (IUP), University of Bremen, Bremen, Germany
2University of Leicester, Leicester, United Kingdom
3SRON Netherlands Institute for Space Research, Utrecht, Netherlands
4European Commission Joint Research Centre (EC-JRC), Institute for Environment and Sustainability (IES), Air and Climate Unit, Ispra, Italy
5Laboratoire de Météorologie Dynamique (LMD), Palaiseau, France
6Swiss Federal Laboratories for Materials Science and Technology (Empa), Dübendorf, Switzerland
7Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
8Laboratoire des Sciences du Climat et de l'Environnement (LSCE), Gif-sur-Yvette, France
9University of Edinburgh, Edinburgh, UK
10Belgian Institute for Space Aeronomy (BIRA), Brussels, Belgium
11Jet Propulsion Laboratory (JPL), Pasadena, California, USA
12The Inversion Lab, Hamburg, Germany
13Deutsches Zentrum für Luft- und Raumfahrt (DLR), Oberpfaffenhofen, Germany
14Max-Planck-Institute for Biogeochemistry (MPI-BGC), Jena, Germany
15Lund University, Lund, Sweden
16European Space Agency (ESA), ESRIN, Frascati, Italy
Keywords: Climate change, carbon cycle, greenhouse gases, emissions, satellites, remote sensing, SCIAMACHY, GOSAT Abstract. 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 of various satellite-derived Essential Climate Variables (ECVs) in line with GCOS (Global Climate Observing System) requirements. The “ECV Greenhouse Gases” (ECV GHG) is the global distribution of important climate relevant gases – namely atmospheric CO2 and CH4 - with a quality sufficient to obtain information on regional CO2 and CH4 sources and sinks. The main goal of GHG-CCI is to generate long-term highly accurate and precise time series of global near-surface-sensitive satellite observations of CO2 and CH4, i.e., XCO2 and XCH4, starting with the launch of ESA’s ENVISAT satellite. These products are currently retrieved from SCIAMACHY/ENVISAT (2002-2012) and TANSO-FTS/GOSAT (2009-today) nadir mode observations in the near-infrared/shortwave-infrared spectral region. In addition, other sensors (e.g., IASI and MIPAS) and viewing modes (e.g., SCIAMACHY solar occultation) are also considered and in the future also data from other satellites. The GHG-CCI data products and related documentation are freely available via the GHG-CCI website and yearly updates are foreseen. Here we present an overview about the latest data set (Climate Research Data Package No. 2 (CRDP#2)) and summarize key findings from using satellite CO2 and CH4 retrievals to improve our understanding of the natural and anthropogenic sources and sinks of these important atmospheric greenhouse gases. We also shortly mention ongoing activities related to validation and initial user assessment of CRDP#2 and future plans.
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Citation: Buchwitz, M., Reuter, M., Schneising, O., Boesch, H., Aben, I., Alexe, M., Armante, R., Bergamaschi, P., Bovensmann, H., Brunner, D., Buchmann, B., Burrows, J. P., Butz, A., Chevallier, F., Chédin, A., Crevoisier, C. D., Gonzi, S., De Mazière, M., De Wachter, E., Detmers, R., Dils, B., Frankenberg, C., Hahne, P., Hasekamp, O. P., Hewson, W., Heymann, J., Houweling, S., Hilker, M., Kaminski, T., Kuhlmann, G., Laeng, A., v. Leeuwen, T. T., Lichtenberg, G., Marshall, J., Noël, S., Notholt, J., Palmer, P., Parker, R., Scholze, M., Stiller, G. P., Warneke, T., and Zehner, C.: The greenhouse gas project of ESA’s climate change initiative (GHG-CCI): overview, achievements and future plans, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-7/W3, 165-172,, 2015.

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