3e06538585d04d9e8c848215eedeb5a4 English 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 0508f3dd991144aa80346007a415fb07 dataset Centre for Environmental Data Analysis (CEDA) 01235446432 Rutherford Appleton Laboratory Harwell Oxon OX11 0QX United Kingdom support@ceda.ac.uk pointOfContact 2026-05-06T02:07:15 UK GEMINI 2.3 WGS 84 ESA Greenhouse Gases Climate Change Initiative (GHG CCI): Merged CO2 Level 2 Data Product (CO2_EMMA), version 2.1, generated with the EMMA algorithm 2016-04-11T08:19:42 publication 2016-04-11T08:19:42 creation https://catalogue.ceda.ac.uk/uuid/3e06538585d04d9e8c848215eedeb5a4 3e06538585d04d9e8c848215eedeb5a4 Centre for Environmental Data Analysis (CEDA) Part of the European Space Agency's (ESA) Greenhouse Gases (GHG), the XCO2 EMMA product comprises a level 2, column-averaged dry-air mole fraction (mixing ratio) for carbon dioxide (CO2). The product has been produced by applying the ensemble median algorithm EMMA to level 2 data of 7 XCO2 retrievals from the Japanese Greenhouse gases Observing Satellite (GOSAT) and the SCanning Imaging Absorption spectroMeter for Atmospheric CHartographY (SCIAMACHY) on board the European Space Agency's environmental research satellite ENVISAT. This is therefore a merged SCIAMACHY and GOSAT XCO2 Level 2 product, primarily used as a comparison tool to assess the level of agreement / disagreement of the various input products (for model-independent global comparison, i.e. for comparisons not restricted to TCCON validation sites and independent of global model data). This version of the product covers 4 years. For further information on the product and the EMMA algorithm please see the EMMA website, the GHG-CCI Data Products webpage or the Product Validation and Intercomparison Report (PVIR) in the documentation section. The GHG-CCI team encourage all users of their products to register with them to receive information on any updates or issues regarding the data products and to receive notification of new product releases. To register, please use the following link: http://www.iup.uni-bremen.de/sciamachy/NIR_NADIR_WFM_DOAS/CRDP_REG/ ESA CCI GHG project team author unknown author Centre for Environmental Data Analysis (CEDA) custodian 01235446432 Rutherford Appleton Laboratory Harwell Oxon OX11 0QX United Kingdom support@ceda.ac.uk custodian Centre for Environmental Data Analysis (CEDA) distributor 01235446432 Rutherford Appleton Laboratory Harwell Oxon OX11 0QX United Kingdom support@ceda.ac.uk distributor Centre for Environmental Data Analysis (CEDA) point_of_contact 01235446432 Rutherford Appleton Laboratory Harwell Oxon OX11 0QX United Kingdom support@ceda.ac.uk pointofContact Centre for Environmental Data Analysis (CEDA) publisher 01235446432 Rutherford Appleton Laboratory Harwell Oxon OX11 0QX United Kingdom support@ceda.ac.uk publisher unknown dataset Institute of Environmental Physics greenhouse gases Level 2 column-averaged dry air mole fraction of CO2 VARIOUS satellite orbit frequency ESA GHG CCI CH4 SCIAMACHY WFMD Greenhouse Gas orthoimagery theme GEMET - INSPIRE themes, version 1.0 2008-06-01 publication otherRestrictions Public data: access to these data is available to both registered and non-registered users. otherRestrictions Under the following licence https://artefacts.ceda.ac.uk/licences/specific_licences/esacci_ghg_terms_and_conditions.pdf, appropriate use of these data may fall under any use. This message is intended as guidance, always read the full licence. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record. grid English imageryBaseMapsEarthCover -180.0 180.0 -90.0 90.0 2009-05-31T23:00:00 2013-05-31T22:59:59 Data are in NetCDF format Centre for Environmental Data Analysis (CEDA) Data Center Contact 01235446432 Rutherford Appleton Laboratory Harwell Oxon OX11 0QX United Kingdom support@ceda.ac.uk distributor https://catalogue.ceda.ac.uk/uuid/3e06538585d04d9e8c848215eedeb5a4 CEDA Data Catalogue Page Detail and access information for the resource information http://data.ceda.ac.uk/neodc/esacci/ghg/data/crdp_3/EMMA/CO2/v2.1/ DOWNLOAD Download Data download http://www.iup.uni-bremen.de/~mreuter/emma.php EMMA website No further details. information http://www.esa-ghg-cci.org/sites/default/files/documents/public/documents/GHG-CCI_DATA.html GHG-CCI Data Products webpage No further details. information http://www.atmos-chem-phys.net/13/1771/2013/acp-13-1771-2013.html Reuter et al, 2013,'A joint effort to deliver satellite retrieved atmospheric CO2 concentrations for surface flux inversions: the ensemble median algorithm EMMA' No further details. information http://www.esa-ghg-cci.org/?q=webfm_send/300 Product Validation and Intercomparison Report (PVIRv4) No further details. information http://www.esa-ghg-cci.org/index.php?q=webfm_send/160 Product User Guide No further details. information https://climate.esa.int/projects/ghgs/ ESA CCI Greenhouse Gases project website No further details. information http://data.ceda.ac.uk/neodc/esacci/ghg/metadata/sample_images/ESACCI-GHG-L2-CO2-VARIOUS-EMMA-20100401-fv1.png Sample Image No further details. information dataset Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 Data were processed by the ESA CCI GHG project team and supplied to CEDA as part of the ESA CCI Open Data Portal Project