18ef8247f52a4cb6a14013f8235cc1eb English 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 82b29f96b8c94db28ecc51a479f8c9c6 dataset Centre for Environmental Data Analysis (CEDA) 01235446432 Rutherford Appleton Laboratory Harwell Oxon OX11 0QX United Kingdom support@ceda.ac.uk pointOfContact 2026-05-10T02:19:39 UK GEMINI 2.3 WGS 84 University of Leicester GOSAT Proxy XCH4 v9.0 2020-05-07T16:04:50 publication 2020-05-07T16:04:50 creation https://catalogue.ceda.ac.uk/uuid/18ef8247f52a4cb6a14013f8235cc1eb 18ef8247f52a4cb6a14013f8235cc1eb Centre for Environmental Data Analysis (CEDA) 10.5285/18ef8247f52a4cb6a14013f8235cc1eb doi The University of Leicester GOSAT Proxy XCH4 v9.0 data set contains column-averaged dry-air mole fraction of methane (XCH4) generated from the Greenhouse Gas Observing Satellite (GOSAT) Level 1B data using the University of Leicester Full-Physics retrieval scheme (UoL-FP) using the Proxy retrieval approach. This data is an NCEO funded update/extension to the European Space Agency Climate Change Initiative (CCI) CH4_GOS_OCPR V7.0. and the Copernicus Climate Change Service (C3S) CH_4 v7.2 data sets. It's a full reprocessing, based on different underlying L1B radiance data with additional changes. The latest version of the GOSAT Level 1B files (version 210.210) was acquired directly from the National Institute for Environmental Studies (NIES) GOSAT Data Archive Service (GDAS) Data Server and are processed with the Leicester Retrieval Preparation Toolset to extract the measured radiances along with all required sounding-specific ancillary information such as the measurement time, location and geometry. These measured radiances have the recommended radiometric calibration and degradation corrections applied as per Yoshida et al., 2013 with an estimate of the spectral noise derived from the standard deviation of the out-of-band signal. The spectral data were then inputted into the UoL-FP retrieval algorithm where the Proxy retrieval approach is used to obtain the column-averaged dry-air mole fraction of methane (XCH4). Post-filtering and bias correction against the Total Carbon Column Observing Network is then performed. See process information and documentation for further details. Parker, Robert Unavailable author Unavailable author Boesch, Hartmut Unavailable author Unavailable author Centre for Environmental Data Analysis (CEDA) custodian 01235446432 Rutherford Appleton Laboratory Harwell Oxon OX11 0QX United Kingdom support@ceda.ac.uk custodian National Centre for Earth Observation (NCEO) data_owner +44 (0)116 2522016 United Kingdom info@nceo.ac.uk owner Centre for Environmental Data Analysis (CEDA) distributor 01235446432 Rutherford Appleton Laboratory Harwell Oxon OX11 0QX United Kingdom support@ceda.ac.uk distributor Natural Environment Research Council (NERC) principal_investigator 01793 411500 Polaris House North Star Avenue Swindon SN2 1EU United Kingdom unknown principalInvestigator Centre for Environmental Data Analysis (CEDA) point_of_contact 01235446432 Rutherford Appleton Laboratory Harwell Oxon OX11 0QX United Kingdom support@ceda.ac.uk pointofContact Parker, Robert 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 CH4 Methane 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 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/, 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 2009-04-23T00:00:00 2021-12-31T23:59:59 CF compliant NetCDF 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/18ef8247f52a4cb6a14013f8235cc1eb CEDA Data Catalogue Page Detail and access information for the resource information http://data.ceda.ac.uk/neodc/gosat/data/ch4/nceov1.0/CH4_GOS_OCPR/ DOWNLOAD Download Data download https://data2.gosat.nies.go.jp/doc/documents/SAM-170118_NC_GOSAT_FTS_L1_Product_Description_Document_V210.pdf Input data product description GOSAT Level 1B files (version 210.210) No further details. information https://doi.org/10.5194/amt-6-1533-2013 Improvement of the retrieval algorithm for GOSAT SWIR XCO2 and XCH4 and their validation using TCCON data No further details. information https://cds.climate.copernicus.eu/cdsapp#!/dataset/satellite-methane?tab=overview C3S CH4 v7.2 data No further details. information https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2011GL047871 Methane observations from the Greenhouse Gases Observing SATellite: Comparison to ground‐based TCCON data and model calculations No further details. information https://www.atmos-meas-tech.net/8/4785/2015/amt-8-4785-2015.pdf Assessing 5 years of GOSAT Proxy XCH4data andassociated uncertainties 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 produced by the University of Leicester project team and delivered to Centre for Environmental Data Analysis (CEDA) for archival and publication. The data was produce under NCEO grant nceo020005