9ed2813d2eda4d958e92ab3ce1ab1fe6 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 2026-05-10T02:15:07 UK GEMINI 2.3 WGS 84 ESA Greenhouse Gases Climate Change Initiative (GHG_cci): Column-averaged CH4 Merged Product generated with the EMMA algorithm (CH4_EMMA), version 1.2 2018-03-19T21:05:17 publication 2018-03-19T21:05:17 creation https://catalogue.ceda.ac.uk/uuid/9ed2813d2eda4d958e92ab3ce1ab1fe6 9ed2813d2eda4d958e92ab3ce1ab1fe6 Centre for Environmental Data Analysis (CEDA) esacci.GHG.satellite-orbit-frequency.L2.CH4.TANSO-FTS.GOSAT.EMMA.ch4_v1-2.r1.v20180702 alternative.identifier The CH4_EMMA dataset is comprised of level 2, column-averaged dry-air mole fractions (mixing ratios) for methane (XCH4). It has been produced using the ensemble median algorithm EMMA to several different versions of the Japanes Greenhouse gases Observing Satellite (GOSAT) XCH4 data, as part of the ESA Greenhouse Gases Climate Change Initiative (GHG_cci) project. This version of the product is v1.2, and forms part of the Climate Research Data Package 4. The ensemble median algorithm EMMA has been applied to level 2 data of several different retrieval products from the Japanese Greenhouse gases Observing Satellite (GOSAT) This is therefore a merged GOSAT XCH4 Level 2 product, which is 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). 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). 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 Reuter, M. 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 GOSAT greenhouse gases column-averaged dry air mole fraction of CH4 GOSAT Thermal And Near-infrared Sensor for Carbon Observation - Fourier Transform Spectrometer column-averaged dry air mole fraction of CH4 greenhouse gases satellite orbit frequency Institute of Environmental Physics GOSAT GOSAT-Programme Level 2 EMMA TANSO-FTS ESA GHG CCI CH4 EMMA 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 2009-06-01T00:00:00 2014-05-30T22:59:59 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/9ed2813d2eda4d958e92ab3ce1ab1fe6 CEDA Data Catalogue Page Detail and access information for the resource information http://data.ceda.ac.uk/neodc/esacci/ghg/data/crdp_4/EMMA/CH4/v1.2/ DOWNLOAD Download Data download http://www.esa-ghg-cci.org/index.php?q=webfm_send/160 Product Specification Document Version 3 (PSDv3) 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/sites/default/files/documents/public/documents/GHG-CCI_DATA.html GHG-CCI Data Products webpage No further details. information http://www.iup.uni-bremen.de/~mreuter/emma_ch4.php EMMA CH4 website No further details. information http://www.esa-ghg-cci.org/?q=webfm_send/352 Product Validation and Intercomparison Report (PVIRv5) 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