8f5623a85d2e4b9b8ab5313f65a7c994 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 2026-05-06T02:17:10 UK GEMINI 2.3 WGS 84 ESA Greenhouse Gases Climate Change Initiative (GHG_cci): Column-averaged CH4 from SCIAMACHY generated with the IMAP-DOAS algorithm (CH4_SCI_IMAP), v7.2 2018-03-19T21:16:29 publication 2018-03-19T21:16:29 creation https://catalogue.ceda.ac.uk/uuid/8f5623a85d2e4b9b8ab5313f65a7c994 8f5623a85d2e4b9b8ab5313f65a7c994 Centre for Environmental Data Analysis (CEDA) esacci.GHG.satellite-orbit-frequency.L2.CH4.SCIAMACHY.Envisat.IMAP.v7-2.r1.v20180702 alternative.identifier The CH4_SCI_IMAP dataset is comprised of level 2, column-averaged dry-air mole fractions (mixing ratios) of methane (CH4). It has been produced using data acquired from the SWIR spectra (channel 6) of the SCanning Imaging Absorption spectroMeter for Atmospheric CHartographY (SCIAMACHY) on board the European Space Agency's (ESA's) environmental research satellite ENVISAT using the IMAP-DOAS algorithm. It has been generated as part of ESA Greenhouse Gases Climate Change Initiative (GHG_cci) project. This version of the dataset is v7.2 and forms part of the Climate Research Data Package 4. The IMAP-DOAS algorithm has been developed at the University of Heidelberg and SRON, and has been applied here to the SCIAMACHY data. This procedure and the algorithms validity are thoroughly described in Frankenberg et al (2011). A second product is also available which has been generated using the Weighting Function Modified DOAS (WFM-DOAS) algorithm. The data product is stored per orbit in a single NetCDF4 file. Retrieval results are provided for the individual SCIAMACHY spatial footprints, no averaging having been applied. The product file contains the key products and information relevant to using the data, such as the vertical layering and averaging kernels. For further details on the product, including the IMAP algorithm and the SCIAMACHY instrument, please see the associated product user guide (PUG) or the Algorithm Theoretical Basis Document. 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 Frankenberg, C. Unavailable point_of_contact Unavailable 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 greenhouse gases SCIAMACHY column-averaged dry air mole fraction of CH4 SCIAMACHY SCanning Imaging Absorption spectroMeter for Atmospheric CHartographY column-averaged dry air mole fraction of CH4 greenhouse gases satellite orbit frequency Netherlands Institute for Space Research Envisat Environmental Satellite Level 2 IMAP SCIAMACHY ESA GHG CCI CH4 IMAP 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 2003-01-08T00:00:00 2012-04-08T22:59:59 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/8f5623a85d2e4b9b8ab5313f65a7c994 CEDA Data Catalogue Page Detail and access information for the resource information http://data.ceda.ac.uk/neodc/esacci/ghg/data/crdp_4/SCIAMACHY/CH4_SCI_IMAP/v7.2/ DOWNLOAD Download Data download http://data.ceda.ac.uk/neodc/esacci/ghg/metadata/sample_images/ESACCI-GHG-L2-CH4-SCIAMACHY-IMAP-20100401-fv1.png Sample Image No further details. information http://www.esa-ghg-cci.org/?q=webfm_send/375 Product User Guide 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://onlinelibrary.wiley.com/doi/10.1029/2010JD014849/abstract Frankenberg et al. 2011, 'Global column-averaged methane mixing ratios from 2003 to 2009 as derived from SCIAMACHY: Trends and variability' 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 https://climate.esa.int/projects/ghgs/ ESA CCI Greenhouse Gases project website No further details. information http://www.esa-ghg-cci.org/?q=webfm_send/376 System Verification Report (SVR) GHG-CCI Phase 2 CRDP#4 for sub-system CH4_SCI_IMAP No further details. information http://www.esa-ghg-cci.org/?q=webfm_send/352 Product Validation and Intercomparison Report (PVIRv5) No further details. information http://www.esa-ghg-cci.org/?q=webfm_send/377 Algorithm Theoretical Basis Document Version 4 (ATBDv4) - The SRON IMAP-DOAS algorithm for the retrieval of XCH4, v7.2 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