95b804971495428285e136edaa6ac066 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): SCIAMACHY CO2 Level 2 Data Product (CO2_SCI_WFMD), version 3.9, generated with the WFMD algorithm 2016-04-11T08:20:32 publication 2016-04-11T08:20:32 creation https://catalogue.ceda.ac.uk/uuid/95b804971495428285e136edaa6ac066 95b804971495428285e136edaa6ac066 Centre for Environmental Data Analysis (CEDA) Part of the European Space Agency's (ESA) Greenhouse Gases (GHG) Climate Change Initiative (CCI) project and the Climate Research Data Package Number 3 (CRDP#3), the WFMD XCO2 SCIAMACHY product comprises a level 2, column-averaged dry-air mole fraction (mixing ratio) for carbon dioxide (CO2). The product has been produced using data acquired from the SCanning Imaging Absorption spectroMeter for Atmospheric CHartographY (SCIAMACHY) on board the European Space Agency's environmental research satellite ENVISAT. This product has been derived using the Weighting Function Modified DOAS (WFM-DOAS) algorithm, a least-squares method based on scaling pre-selected atmospheric vertical profiles. Note that this has been designated as an 'alternative' algorithm for the GHG CCI, and another XCO2 product has also been generated from the SCIAMACHY data using the baseline algorithm (the Bremen Optimal Estimation DOAS (BESD) algorithm). It is advised that users who aren't sure whether to use the baseline or alternative product use the product generated with the BESD baseline algorithm. For more information regarding the differences between baseline and alternative algorithms please see the GHG-CCI data products webpage provided in the documentation section. The data product is stored per day in seperate NetCDF-files (NetCDF-4 classic model). The product files contain the key products, i.e. the retrieved column-averaged dry air mole fractions for XCO2, several other useful parameters and additional information relevant to using the data e.g. the averaging kernels. For further information on the product, including details of the WFMD algorithm, the SCIAMACHY instrument and issues associated with the data please see the associated product user guide (PUG) or the Algorithm Theoretical Basis Documents 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 notPlanned dataset University of Bremen greenhouse gases Level 2 Envisat column-averaged dry air mole fraction of CO2 SCIAMACHY SCIAMACHY Environmental Satellite satellite orbit frequency ESA GHG CCI CO2 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 2002-10-01T00:00:00 2012-04-08T23:59:59 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/95b804971495428285e136edaa6ac066 CEDA Data Catalogue Page Detail and access information for the resource information http://data.ceda.ac.uk/neodc/esacci/ghg/data/crdp_3/SCIAMACHY/WFMD_CO2/v3.9/ DOWNLOAD Download Data download http://www.esa-ghg-cci.org/index.php?q=webfm_send/258 Product User Guide No further details. information http://www.iup.uni-bremen.de/sciamachy/NIR_NADIR_WFM_DOAS/products/ Bremen WFMD 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.org/11/2863/2011/acp-11-2863-2011.html Schneising et al, 2011,'Long-term analysis of carbon dioxide and methane column-averaged mole fractions retrieved from SCIAMACHY' No further details. information http://www.esa-ghg-cci.org/index.php?q=webfm_send/260 System Verification Report (SVR) CRDP#3 - SCIAMACHY WFM-DOAS (WFMD) XCO2 and XCH4 No further details. information http://www.esa-ghg-cci.org/index.php?q=webfm_send/280 Comprehensive Error Characterisation Report (CECR) - SCIAMACHY WFM-DOAS (WFMD) XCO2 and XCH4 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 Specification Document Version 3 (PSDv3) No further details. information http://www.esa-ghg-cci.org/index.php?q=webfm_send/259 Algorithm Theoretical Basis Document (ATBD) - SCIAMACHY WFM-DOAS (WFMD) XCO2 and XCH4 No further details. information http://data.ceda.ac.uk/neodc/esacci/ghg/metadata/sample_images/ESACCI-GHG-L2-CO2-SCIAMACHY-WFMD-20100401-fv1.png Sample Image No further details. information https://climate.esa.int/projects/ghgs/ ESA CCI Greenhouse Gases project website 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