<?xml version="1.0" encoding="UTF-8"?>
<gmd:MD_Metadata xmlns:gmd="http://www.isotc211.org/2005/gmd"
                 xmlns:gsr="http://www.isotc211.org/2005/gsr"
                 xmlns:xlink="http://www.w3.org/1999/xlink"
                 xmlns:gss="http://www.isotc211.org/2005/gss"
                 xmlns:gts="http://www.isotc211.org/2005/gts"
                 xmlns:gml="http://www.opengis.net/gml/3.2"
                 xmlns:gmx="http://www.isotc211.org/2005/gmx"
                 xmlns:gco="http://www.isotc211.org/2005/gco"
                 xmlns:srv="http://www.isotc211.org/2005/srv"
                 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                 xsi:schemaLocation="http://www.isotc211.org/2005/gmd http://inspire.ec.europa.eu/draft-schemas/inspire-md-schemas-temp/apiso-inspire/apiso-inspire.xsd">
  <gmd:fileIdentifier>
      <gco:CharacterString>4774bc5719754c44add5c6f209fc25ae</gco:CharacterString>
  </gmd:fileIdentifier>
  <gmd:language>
      <gmd:LanguageCode codeList="http://www.loc.gov/standards/iso639-2/php/code_list.php"
                        codeListValue="eng">English</gmd:LanguageCode>
  </gmd:language>
  <gmd:characterSet>
      <gmd:MD_CharacterSetCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/codelist/gmxCodelists.xml#MD_CharacterSetCode"
                               codeListValue="utf8">8-bit variable size UCS Transfer Format, based on ISO/IEC 10646</gmd:MD_CharacterSetCode>
  </gmd:characterSet>
  <gmd:parentIdentifier>
      <gco:CharacterString>0508f3dd991144aa80346007a415fb07</gco:CharacterString>
  </gmd:parentIdentifier>
  <gmd:hierarchyLevelName gco:nilReason="inapplicable"/>
  <gmd:hierarchyLevel>
      <gmd:MD_ScopeCode codeListValue="dataset"
                        codeList="https://schemas.isotc211.org/schemas/19139/resources/codelist/gmxCodelists.xml#MD_ScopeCode">dataset</gmd:MD_ScopeCode>
  </gmd:hierarchyLevel>
  <gmd:contact>
      <gmd:CI_ResponsibleParty>
         <gmd:organisationName>
            <gco:CharacterString>Centre for Environmental Data Analysis (CEDA)</gco:CharacterString>
         </gmd:organisationName>
         <gmd:contactInfo>
            <gmd:CI_Contact>
               <gmd:phone>
                  <gmd:CI_Telephone>
                     <gmd:voice>
                        <gco:CharacterString>01235446432</gco:CharacterString>
                     </gmd:voice>
                  </gmd:CI_Telephone>
               </gmd:phone>
               <gmd:address>
                  <gmd:CI_Address>
                     <gmd:deliveryPoint>
                        <gco:CharacterString>Rutherford Appleton Laboratory</gco:CharacterString>
                     </gmd:deliveryPoint>
                     <gmd:deliveryPoint>
                        <gco:CharacterString>Harwell</gco:CharacterString>
                     </gmd:deliveryPoint>
                     <gmd:city>
                        <gco:CharacterString>Oxon</gco:CharacterString>
                     </gmd:city>
                     <gmd:postalCode>
                        <gco:CharacterString>OX11 0QX</gco:CharacterString>
                     </gmd:postalCode>
                     <gmd:country>
                        <gco:CharacterString>United Kingdom</gco:CharacterString>
                     </gmd:country>
                     <gmd:electronicMailAddress>
                        <gco:CharacterString>support@ceda.ac.uk</gco:CharacterString>
                     </gmd:electronicMailAddress>
                  </gmd:CI_Address>
               </gmd:address>
            </gmd:CI_Contact>
         </gmd:contactInfo>
         <gmd:role>
            <gmd:CI_RoleCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/codelist/gmxCodelists.xml#CI_RoleCode"
                             codeListValue="pointOfContact">pointOfContact</gmd:CI_RoleCode>
         </gmd:role>
      </gmd:CI_ResponsibleParty>
  </gmd:contact>
  <gmd:dateStamp>
      <gco:DateTime>2026-05-06T02:07:13</gco:DateTime>
  </gmd:dateStamp>
  <gmd:metadataStandardName>
      <gmx:Anchor xlink:href="http://vocab.nerc.ac.uk/collection/M25/current/GEMINI/">UK GEMINI</gmx:Anchor>
  </gmd:metadataStandardName>
  <gmd:metadataStandardVersion>
      <gco:CharacterString>2.3</gco:CharacterString>
  </gmd:metadataStandardVersion>
  <gmd:referenceSystemInfo>
      <gmd:MD_ReferenceSystem>
         <gmd:referenceSystemIdentifier>
            <gmd:RS_Identifier>
               <gmd:code>
                  <gmx:Anchor xlink:href="http://www.opengis.net/def/crs/OGC/1.3/CRS84">WGS 84</gmx:Anchor>
               </gmd:code>
            </gmd:RS_Identifier>
         </gmd:referenceSystemIdentifier>
      </gmd:MD_ReferenceSystem>
  </gmd:referenceSystemInfo>
  <gmd:identificationInfo>
      <gmd:MD_DataIdentification>
         <gmd:citation>
            <gmd:CI_Citation>
               <gmd:title>
                  <gco:CharacterString>ESA Greenhouse Gases Climate Change Initiative (GHG CCI): GOSAT CH4 Proxy Level 2 Data Product, (CH4_GOS_OCPR), version 6.0, generated with the OCPR (UoL-PR) algorithm</gco:CharacterString>
               </gmd:title>
               <gmd:date>
                  <gmd:CI_Date>
                     <gmd:date>
                        <gco:DateTime>2016-04-11T08:25:36</gco:DateTime>
                     </gmd:date>
                     <gmd:dateType>
                        <gmd:CI_DateTypeCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/codelist/gmxCodelists.xml#CI_DateTypeCode"
                                             codeListValue="publication">publication</gmd:CI_DateTypeCode>
                     </gmd:dateType>
                  </gmd:CI_Date>
               </gmd:date>
               <gmd:date>
                  <gmd:CI_Date>
                     <gmd:date>
                        <gco:DateTime>2016-04-11T08:25:36</gco:DateTime>
                     </gmd:date>
                     <gmd:dateType>
                        <gmd:CI_DateTypeCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/codelist/gmxCodelists.xml#CI_DateTypeCode"
                                             codeListValue="creation">creation</gmd:CI_DateTypeCode>
                     </gmd:dateType>
                  </gmd:CI_Date>
               </gmd:date>
               <gmd:identifier>
                  <gmd:MD_Identifier>
                     <gmd:code>
                        <gco:CharacterString>https://catalogue.ceda.ac.uk/uuid/4774bc5719754c44add5c6f209fc25ae</gco:CharacterString>
                     </gmd:code>
                  </gmd:MD_Identifier>
               </gmd:identifier>
               <gmd:identifier>
                  <gmd:RS_Identifier>
                     <gmd:code>
                        <gco:CharacterString>4774bc5719754c44add5c6f209fc25ae</gco:CharacterString>
                     </gmd:code>
                     <gmd:codeSpace>
                        <gco:CharacterString>Centre for Environmental Data Analysis (CEDA)</gco:CharacterString>
                     </gmd:codeSpace>
                  </gmd:RS_Identifier>
               </gmd:identifier>
            </gmd:CI_Citation>
         </gmd:citation>
         <gmd:abstract>
            <gco:CharacterString>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 XCH4 GOS PR (Proxy) product comprises a level 2, column-averaged dry-air mole fraction (mixing ratio) for methane (CH4). The product has been produced using data acquired from the Thermal and Near Infrared Sensor for Carbon Observations (TANSO-FTS) NIR and SWIR spectra, onboard the Japanese Greenhouse gases Observing Satellite (GOSAT). 

This version of the proxy product (version 6.0) has been generated using the OCPR University of Leicester  Full-Physics Retrieval Algorithm, based on the original Orbiting Carbon Observatory (OCO) Full Physics Retrieval Algorithm and modified for use on GOSAT spectra baseline algorithm. This algorithm has been designated the baseline algorithm for the GHG CCI proxy methane retrievals.  A second product has also been generated from the TANSO-FTS data using an alternative algorithm, the RemoTeC Proxy algorithm. It is advised that users who aren't sure whether to use the baseline or alternative product use this product generated with the OCPR baseline algorithm. For more information regarding the differences between baseline and alternative algorithms please see the GHG-CCI data products webpage.

The product is stored in NetCDF format with all GOSAT soundings on a single day stored in one file. For further details on the product, including the UoL-PR algorithm and the TANSO-FTS instrument, 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/</gco:CharacterString>
         </gmd:abstract>
         <gmd:pointOfContact>
            <gmd:CI_ResponsibleParty>
               <gmd:organisationName>
                  <gco:CharacterString>ESA CCI GHG project team</gco:CharacterString>
               </gmd:organisationName>
               <gmd:positionName>
                  <gco:CharacterString>author</gco:CharacterString>
               </gmd:positionName>
               <gmd:contactInfo>
                  <gmd:CI_Contact>
                     <gmd:address>
                        <gmd:CI_Address>
                           <gmd:electronicMailAddress>
                              <gco:CharacterString>unknown</gco:CharacterString>
                           </gmd:electronicMailAddress>
                        </gmd:CI_Address>
                     </gmd:address>
                  </gmd:CI_Contact>
               </gmd:contactInfo>
               <gmd:role>
                  <gmd:CI_RoleCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/codelist/gmxCodelists.xml#CI_RoleCode"
                                   codeListValue="author">author</gmd:CI_RoleCode>
               </gmd:role>
            </gmd:CI_ResponsibleParty>
         </gmd:pointOfContact>
         <gmd:pointOfContact>
            <gmd:CI_ResponsibleParty>
               <gmd:organisationName>
                  <gco:CharacterString>Centre for Environmental Data Analysis (CEDA)</gco:CharacterString>
               </gmd:organisationName>
               <gmd:positionName>
                  <gco:CharacterString>custodian</gco:CharacterString>
               </gmd:positionName>
               <gmd:contactInfo>
                  <gmd:CI_Contact>
                     <gmd:phone>
                        <gmd:CI_Telephone>
                           <gmd:voice>
                              <gco:CharacterString>01235446432</gco:CharacterString>
                           </gmd:voice>
                        </gmd:CI_Telephone>
                     </gmd:phone>
                     <gmd:address>
                        <gmd:CI_Address>
                           <gmd:deliveryPoint>
                              <gco:CharacterString>Rutherford Appleton Laboratory</gco:CharacterString>
                           </gmd:deliveryPoint>
                           <gmd:deliveryPoint>
                              <gco:CharacterString>Harwell</gco:CharacterString>
                           </gmd:deliveryPoint>
                           <gmd:city>
                              <gco:CharacterString>Oxon</gco:CharacterString>
                           </gmd:city>
                           <gmd:postalCode>
                              <gco:CharacterString>OX11 0QX</gco:CharacterString>
                           </gmd:postalCode>
                           <gmd:country>
                              <gco:CharacterString>United Kingdom</gco:CharacterString>
                           </gmd:country>
                           <gmd:electronicMailAddress>
                              <gco:CharacterString>support@ceda.ac.uk</gco:CharacterString>
                           </gmd:electronicMailAddress>
                        </gmd:CI_Address>
                     </gmd:address>
                  </gmd:CI_Contact>
               </gmd:contactInfo>
               <gmd:role>
                  <gmd:CI_RoleCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/codelist/gmxCodelists.xml#CI_RoleCode"
                                   codeListValue="custodian">custodian</gmd:CI_RoleCode>
               </gmd:role>
            </gmd:CI_ResponsibleParty>
         </gmd:pointOfContact>
         <gmd:pointOfContact>
            <gmd:CI_ResponsibleParty>
               <gmd:organisationName>
                  <gco:CharacterString>Centre for Environmental Data Analysis (CEDA)</gco:CharacterString>
               </gmd:organisationName>
               <gmd:positionName>
                  <gco:CharacterString>distributor</gco:CharacterString>
               </gmd:positionName>
               <gmd:contactInfo>
                  <gmd:CI_Contact>
                     <gmd:phone>
                        <gmd:CI_Telephone>
                           <gmd:voice>
                              <gco:CharacterString>01235446432</gco:CharacterString>
                           </gmd:voice>
                        </gmd:CI_Telephone>
                     </gmd:phone>
                     <gmd:address>
                        <gmd:CI_Address>
                           <gmd:deliveryPoint>
                              <gco:CharacterString>Rutherford Appleton Laboratory</gco:CharacterString>
                           </gmd:deliveryPoint>
                           <gmd:deliveryPoint>
                              <gco:CharacterString>Harwell</gco:CharacterString>
                           </gmd:deliveryPoint>
                           <gmd:city>
                              <gco:CharacterString>Oxon</gco:CharacterString>
                           </gmd:city>
                           <gmd:postalCode>
                              <gco:CharacterString>OX11 0QX</gco:CharacterString>
                           </gmd:postalCode>
                           <gmd:country>
                              <gco:CharacterString>United Kingdom</gco:CharacterString>
                           </gmd:country>
                           <gmd:electronicMailAddress>
                              <gco:CharacterString>support@ceda.ac.uk</gco:CharacterString>
                           </gmd:electronicMailAddress>
                        </gmd:CI_Address>
                     </gmd:address>
                  </gmd:CI_Contact>
               </gmd:contactInfo>
               <gmd:role>
                  <gmd:CI_RoleCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/codelist/gmxCodelists.xml#CI_RoleCode"
                                   codeListValue="distributor">distributor</gmd:CI_RoleCode>
               </gmd:role>
            </gmd:CI_ResponsibleParty>
         </gmd:pointOfContact>
         <gmd:pointOfContact>
            <gmd:CI_ResponsibleParty>
               <gmd:organisationName>
                  <gco:CharacterString>Centre for Environmental Data Analysis (CEDA)</gco:CharacterString>
               </gmd:organisationName>
               <gmd:positionName>
                  <gco:CharacterString>point_of_contact</gco:CharacterString>
               </gmd:positionName>
               <gmd:contactInfo>
                  <gmd:CI_Contact>
                     <gmd:phone>
                        <gmd:CI_Telephone>
                           <gmd:voice>
                              <gco:CharacterString>01235446432</gco:CharacterString>
                           </gmd:voice>
                        </gmd:CI_Telephone>
                     </gmd:phone>
                     <gmd:address>
                        <gmd:CI_Address>
                           <gmd:deliveryPoint>
                              <gco:CharacterString>Rutherford Appleton Laboratory</gco:CharacterString>
                           </gmd:deliveryPoint>
                           <gmd:deliveryPoint>
                              <gco:CharacterString>Harwell</gco:CharacterString>
                           </gmd:deliveryPoint>
                           <gmd:city>
                              <gco:CharacterString>Oxon</gco:CharacterString>
                           </gmd:city>
                           <gmd:postalCode>
                              <gco:CharacterString>OX11 0QX</gco:CharacterString>
                           </gmd:postalCode>
                           <gmd:country>
                              <gco:CharacterString>United Kingdom</gco:CharacterString>
                           </gmd:country>
                           <gmd:electronicMailAddress>
                              <gco:CharacterString>support@ceda.ac.uk</gco:CharacterString>
                           </gmd:electronicMailAddress>
                        </gmd:CI_Address>
                     </gmd:address>
                  </gmd:CI_Contact>
               </gmd:contactInfo>
               <gmd:role>
                  <gmd:CI_RoleCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/codelist/gmxCodelists.xml#CI_RoleCode"
                                   codeListValue="pointofContact">pointofContact</gmd:CI_RoleCode>
               </gmd:role>
            </gmd:CI_ResponsibleParty>
         </gmd:pointOfContact>
         <gmd:pointOfContact>
            <gmd:CI_ResponsibleParty>
               <gmd:organisationName>
                  <gco:CharacterString>Centre for Environmental Data Analysis (CEDA)</gco:CharacterString>
               </gmd:organisationName>
               <gmd:positionName>
                  <gco:CharacterString>publisher</gco:CharacterString>
               </gmd:positionName>
               <gmd:contactInfo>
                  <gmd:CI_Contact>
                     <gmd:phone>
                        <gmd:CI_Telephone>
                           <gmd:voice>
                              <gco:CharacterString>01235446432</gco:CharacterString>
                           </gmd:voice>
                        </gmd:CI_Telephone>
                     </gmd:phone>
                     <gmd:address>
                        <gmd:CI_Address>
                           <gmd:deliveryPoint>
                              <gco:CharacterString>Rutherford Appleton Laboratory</gco:CharacterString>
                           </gmd:deliveryPoint>
                           <gmd:deliveryPoint>
                              <gco:CharacterString>Harwell</gco:CharacterString>
                           </gmd:deliveryPoint>
                           <gmd:city>
                              <gco:CharacterString>Oxon</gco:CharacterString>
                           </gmd:city>
                           <gmd:postalCode>
                              <gco:CharacterString>OX11 0QX</gco:CharacterString>
                           </gmd:postalCode>
                           <gmd:country>
                              <gco:CharacterString>United Kingdom</gco:CharacterString>
                           </gmd:country>
                           <gmd:electronicMailAddress>
                              <gco:CharacterString>support@ceda.ac.uk</gco:CharacterString>
                           </gmd:electronicMailAddress>
                        </gmd:CI_Address>
                     </gmd:address>
                  </gmd:CI_Contact>
               </gmd:contactInfo>
               <gmd:role>
                  <gmd:CI_RoleCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/codelist/gmxCodelists.xml#CI_RoleCode"
                                   codeListValue="publisher">publisher</gmd:CI_RoleCode>
               </gmd:role>
            </gmd:CI_ResponsibleParty>
         </gmd:pointOfContact>
         <gmd:resourceMaintenance>
            <gmd:MD_MaintenanceInformation>
               <gmd:maintenanceAndUpdateFrequency>
                  <gmd:MD_MaintenanceFrequencyCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/codelist/gmxCodelists.xml#MD_MaintenanceFrequencyCode"
                                                   codeListValue="unknown">unknown</gmd:MD_MaintenanceFrequencyCode>
               </gmd:maintenanceAndUpdateFrequency>
               <gmd:updateScope>
                  <gmd:MD_ScopeCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/codelist/gmxCodelists.xml#MD_ScopeCode"
                                    codeListValue="dataset">dataset</gmd:MD_ScopeCode>
               </gmd:updateScope>
            </gmd:MD_MaintenanceInformation>
         </gmd:resourceMaintenance>
         <gmd:descriptiveKeywords>
            <gmd:MD_Keywords>
               <gmd:keyword>
                  <gmx:Anchor xlink:href="http://vocab-test.ceda.ac.uk/collection/cci/org/org65"
                              xlink:title="University of Leicester">University of Leicester</gmx:Anchor>
               </gmd:keyword>
               <gmd:keyword>
                  <gmx:Anchor xlink:href="http://vocab-test.ceda.ac.uk/collection/cci/platform/plat_gosat"
                              xlink:title="GOSAT">GOSAT</gmx:Anchor>
               </gmd:keyword>
               <gmd:keyword>
                  <gmx:Anchor xlink:href="http://vocab-test.ceda.ac.uk/collection/cci/sensor/sens_tansoFts"
                              xlink:title="TANSO-FTS">TANSO-FTS</gmx:Anchor>
               </gmd:keyword>
               <gmd:keyword>
                  <gmx:Anchor xlink:href="http://vocab-test.ceda.ac.uk/collection/cci/ecv/cciecv_ghg"
                              xlink:title="greenhouse gases">greenhouse gases</gmx:Anchor>
               </gmd:keyword>
               <gmd:keyword>
                  <gmx:Anchor xlink:href="http://vocab-test.ceda.ac.uk/collection/cci/procLev/proc_level2"
                              xlink:title="Level 2">Level 2</gmx:Anchor>
               </gmd:keyword>
               <gmd:keyword>
                  <gmx:Anchor xlink:href="http://vocab-test.ceda.ac.uk/collection/cci/dataType/dtype_ch4"
                              xlink:title="column-averaged dry air mole fraction of CH4">column-averaged dry air mole fraction of CH4</gmx:Anchor>
               </gmd:keyword>
               <gmd:keyword>
                  <gmx:Anchor xlink:href="http://vocab-test.ceda.ac.uk/collection/cci/product/prod_gosat"
                              xlink:title="GOSAT">GOSAT</gmx:Anchor>
               </gmd:keyword>
               <gmd:keyword>
                  <gmx:Anchor xlink:href="http://vocab-test.ceda.ac.uk/collection/cci/platformProg/plat_gosat_prog"
                              xlink:title="GOSAT-Programme">GOSAT-Programme</gmx:Anchor>
               </gmd:keyword>
               <gmd:keyword>
                  <gmx:Anchor xlink:href="http://vocab-test.ceda.ac.uk/collection/cci/freq/freq_sat_orb"
                              xlink:title="satellite orbit frequency">satellite orbit frequency</gmx:Anchor>
               </gmd:keyword>
               <gmd:keyword>
                  <gco:CharacterString>ESA</gco:CharacterString>
               </gmd:keyword>
               <gmd:keyword>
                  <gco:CharacterString>GHG</gco:CharacterString>
               </gmd:keyword>
               <gmd:keyword>
                  <gco:CharacterString>CCI</gco:CharacterString>
               </gmd:keyword>
               <gmd:keyword>
                  <gco:CharacterString>CH4</gco:CharacterString>
               </gmd:keyword>
               <gmd:keyword>
                  <gco:CharacterString>Proxy</gco:CharacterString>
               </gmd:keyword>
               <gmd:keyword>
                  <gco:CharacterString>Greenhouse Gas</gco:CharacterString>
               </gmd:keyword>
            </gmd:MD_Keywords>
         </gmd:descriptiveKeywords>
         <gmd:descriptiveKeywords>
            <gmd:MD_Keywords>
               <gmd:keyword>
                  <gco:CharacterString>orthoimagery</gco:CharacterString>
               </gmd:keyword>
               <gmd:type>
                  <gmd:MD_KeywordTypeCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/codelist/gmxCodelists.xml#MD_KeywordTypeCode"
                                          codeListValue="theme">theme</gmd:MD_KeywordTypeCode>
               </gmd:type>
               <gmd:thesaurusName>
                  <gmd:CI_Citation>
                     <gmd:title>
                        <gco:CharacterString>GEMET - INSPIRE themes, version 1.0</gco:CharacterString>
                     </gmd:title>
                     <gmd:date>
                        <gmd:CI_Date>
                           <gmd:date>
                              <gco:Date>2008-06-01</gco:Date>
                           </gmd:date>
                           <gmd:dateType>
                              <gmd:CI_DateTypeCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/codelist/gmxCodelists.xml#CI_DateTypeCode"
                                                   codeListValue="publication">publication</gmd:CI_DateTypeCode>
                           </gmd:dateType>
                        </gmd:CI_Date>
                     </gmd:date>
                  </gmd:CI_Citation>
               </gmd:thesaurusName>
            </gmd:MD_Keywords>
         </gmd:descriptiveKeywords>
         <gmd:resourceConstraints>
            <gmd:MD_LegalConstraints>
               <gmd:accessConstraints>
                  <gmd:MD_RestrictionCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/codelist/gmxCodelists.xml#MD_RestrictionCode"
                                          codeListValue="otherRestrictions">otherRestrictions</gmd:MD_RestrictionCode>
               </gmd:accessConstraints>
               <gmd:otherConstraints>
                  <gmx:Anchor xlink:href="http://inspire.ec.europa.eu/metadata-codelist/LimitationsOnPublicAccess/noLimitations">Public data: access to these data is available to both registered and non-registered users.</gmx:Anchor>
               </gmd:otherConstraints>
            </gmd:MD_LegalConstraints>
         </gmd:resourceConstraints>
         <gmd:resourceConstraints>
            <gmd:MD_LegalConstraints>
               <gmd:useConstraints>
                  <gmd:MD_RestrictionCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/codelist/gmxCodelists.xml#MD_RestrictionCode"
                                          codeListValue="otherRestrictions">otherRestrictions</gmd:MD_RestrictionCode>
               </gmd:useConstraints>
               <gmd:otherConstraints>
                  <gmx:Anchor xlink:title="Licence file link."
                              xlink:href="https://artefacts.ceda.ac.uk/licences/specific_licences/esacci_ghg_terms_and_conditions.pdf">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.</gmx:Anchor>
               </gmd:otherConstraints>
            </gmd:MD_LegalConstraints>
         </gmd:resourceConstraints>
         <gmd:spatialRepresentationType>
            <gmd:MD_SpatialRepresentationTypeCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/codelist/gmxCodelists.xml#MD_SpatialRepresentationTypeCode"
                                                  codeListValue="grid">grid</gmd:MD_SpatialRepresentationTypeCode>
         </gmd:spatialRepresentationType>
         <gmd:spatialResolution>
            <gmd:MD_Resolution>
               <gmd:distance gco:nilReason="inapplicable"/>
            </gmd:MD_Resolution>
         </gmd:spatialResolution>
         <gmd:language>
            <gmd:LanguageCode codeList="http://www.loc.gov/standards/iso639-2/php/code_list.php"
                              codeListValue="eng">English</gmd:LanguageCode>
         </gmd:language>
         <gmd:topicCategory>
            <gmd:MD_TopicCategoryCode>imageryBaseMapsEarthCover</gmd:MD_TopicCategoryCode>
         </gmd:topicCategory>
         <gmd:extent>
            <gmd:EX_Extent>
               <gmd:geographicElement>
                  <gmd:EX_GeographicBoundingBox>
                     <gmd:westBoundLongitude>
                        <gco:Decimal>-180.0</gco:Decimal>
                     </gmd:westBoundLongitude>
                     <gmd:eastBoundLongitude>
                        <gco:Decimal>180.0</gco:Decimal>
                     </gmd:eastBoundLongitude>
                     <gmd:southBoundLatitude>
                        <gco:Decimal>-90.0</gco:Decimal>
                     </gmd:southBoundLatitude>
                     <gmd:northBoundLatitude>
                        <gco:Decimal>90.0</gco:Decimal>
                     </gmd:northBoundLatitude>
                  </gmd:EX_GeographicBoundingBox>
               </gmd:geographicElement>
            </gmd:EX_Extent>
         </gmd:extent>
         <gmd:extent>
            <gmd:EX_Extent>
               <gmd:temporalElement>
                  <gmd:EX_TemporalExtent>
                     <gmd:extent>
                        <gml:TimePeriod gml:id="CEDA01">
                           <gml:beginPosition>2009-04-22T23:00:00</gml:beginPosition>
                           <gml:endPosition>2014-12-14T23:59:59</gml:endPosition>
                        </gml:TimePeriod>
                     </gmd:extent>
                  </gmd:EX_TemporalExtent>
               </gmd:temporalElement>
            </gmd:EX_Extent>
         </gmd:extent>
      </gmd:MD_DataIdentification>
  </gmd:identificationInfo>
  <gmd:distributionInfo>
      <gmd:MD_Distribution>
         <gmd:distributionFormat>
            <gmd:MD_Format>
               <gmd:name>
                  <gco:CharacterString>Data is in NetCDF format</gco:CharacterString>
               </gmd:name>
               <gmd:version gco:nilReason="unknown"/>
            </gmd:MD_Format>
         </gmd:distributionFormat>
         <gmd:distributor>
            <gmd:MD_Distributor>
               <gmd:distributorContact>
                  <gmd:CI_ResponsibleParty>
                     <gmd:organisationName>
                        <gco:CharacterString>Centre for Environmental Data Analysis (CEDA)</gco:CharacterString>
                     </gmd:organisationName>
                     <gmd:positionName>
                        <gco:CharacterString>Data Center Contact</gco:CharacterString>
                     </gmd:positionName>
                     <gmd:contactInfo>
                        <gmd:CI_Contact>
                           <gmd:phone>
                              <gmd:CI_Telephone>
                                 <gmd:voice>
                                    <gco:CharacterString>01235446432</gco:CharacterString>
                                 </gmd:voice>
                              </gmd:CI_Telephone>
                           </gmd:phone>
                           <gmd:address>
                              <gmd:CI_Address>
                                 <gmd:deliveryPoint>
                                    <gco:CharacterString>Rutherford Appleton Laboratory</gco:CharacterString>
                                 </gmd:deliveryPoint>
                                 <gmd:deliveryPoint>
                                    <gco:CharacterString>Harwell</gco:CharacterString>
                                 </gmd:deliveryPoint>
                                 <gmd:city>
                                    <gco:CharacterString>Oxon</gco:CharacterString>
                                 </gmd:city>
                                 <gmd:postalCode>
                                    <gco:CharacterString>OX11 0QX</gco:CharacterString>
                                 </gmd:postalCode>
                                 <gmd:country>
                                    <gco:CharacterString>United Kingdom</gco:CharacterString>
                                 </gmd:country>
                                 <gmd:electronicMailAddress>
                                    <gco:CharacterString>support@ceda.ac.uk</gco:CharacterString>
                                 </gmd:electronicMailAddress>
                              </gmd:CI_Address>
                           </gmd:address>
                        </gmd:CI_Contact>
                     </gmd:contactInfo>
                     <gmd:role>
                        <gmd:CI_RoleCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/codelist/gmxCodelists.xml#CI_RoleCode"
                                         codeListValue="distributor">distributor</gmd:CI_RoleCode>
                     </gmd:role>
                  </gmd:CI_ResponsibleParty>
               </gmd:distributorContact>
            </gmd:MD_Distributor>
         </gmd:distributor>
         <gmd:transferOptions>
            <gmd:MD_DigitalTransferOptions>
               <gmd:onLine>
                  <gmd:CI_OnlineResource>
                     <gmd:linkage>
                        <gmd:URL>https://catalogue.ceda.ac.uk/uuid/4774bc5719754c44add5c6f209fc25ae</gmd:URL>
                     </gmd:linkage>
                     <gmd:name>
                        <gco:CharacterString>CEDA Data Catalogue Page</gco:CharacterString>
                     </gmd:name>
                     <gmd:description>
                        <gco:CharacterString>Detail and access information for the resource</gco:CharacterString>
                     </gmd:description>
                     <gmd:function>
                        <gmd:CI_OnLineFunctionCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/codelist/gmxCodelists.xml#CI_OnLineFunctionCode"
                                                   codeListValue="information">information</gmd:CI_OnLineFunctionCode>
                     </gmd:function>
                  </gmd:CI_OnlineResource>
               </gmd:onLine>
            </gmd:MD_DigitalTransferOptions>
         </gmd:transferOptions>
         <gmd:transferOptions>
            <gmd:MD_DigitalTransferOptions>
               <gmd:onLine>
                  <gmd:CI_OnlineResource>
                     <gmd:linkage>
                        <gmd:URL>http://data.ceda.ac.uk/neodc/esacci/ghg/data/crdp_3/GOSAT/CH4_GOS_OCPR/6.0</gmd:URL>
                     </gmd:linkage>
                     <gmd:name>
                        <gco:CharacterString>DOWNLOAD</gco:CharacterString>
                     </gmd:name>
                     <gmd:description>
                        <gco:CharacterString>Download Data</gco:CharacterString>
                     </gmd:description>
                     <gmd:function>
                        <gmd:CI_OnLineFunctionCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/codelist/gmxCodelists.xml#CI_OnLineFunctionCode"
                                                   codeListValue="download">download</gmd:CI_OnLineFunctionCode>
                     </gmd:function>
                  </gmd:CI_OnlineResource>
               </gmd:onLine>
            </gmd:MD_DigitalTransferOptions>
         </gmd:transferOptions>
         <gmd:transferOptions>
            <gmd:MD_DigitalTransferOptions>
               <gmd:onLine>
                  <gmd:CI_OnlineResource>
                     <gmd:linkage>
                        <gmd:URL>http://www.esa-ghg-cci.org/?q=webfm_send/300</gmd:URL>
                     </gmd:linkage>
                     <gmd:name>
                        <gco:CharacterString>Product Validation and Intercomparison Report (PVIRv4)</gco:CharacterString>
                     </gmd:name>
                     <gmd:description>
                        <gco:CharacterString>No further details.</gco:CharacterString>
                     </gmd:description>
                     <gmd:function>
                        <gmd:CI_OnLineFunctionCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode"
                                                   codeListValue="information">information</gmd:CI_OnLineFunctionCode>
                     </gmd:function>
                  </gmd:CI_OnlineResource>
               </gmd:onLine>
            </gmd:MD_DigitalTransferOptions>
         </gmd:transferOptions>
         <gmd:transferOptions>
            <gmd:MD_DigitalTransferOptions>
               <gmd:onLine>
                  <gmd:CI_OnlineResource>
                     <gmd:linkage>
                        <gmd:URL>http://www.esa-ghg-cci.org/sites/default/files/documents/public/documents/GHG-CCI_DATA.html</gmd:URL>
                     </gmd:linkage>
                     <gmd:name>
                        <gco:CharacterString>GHG-CCI Data Products webpage</gco:CharacterString>
                     </gmd:name>
                     <gmd:description>
                        <gco:CharacterString>No further details.</gco:CharacterString>
                     </gmd:description>
                     <gmd:function>
                        <gmd:CI_OnLineFunctionCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode"
                                                   codeListValue="information">information</gmd:CI_OnLineFunctionCode>
                     </gmd:function>
                  </gmd:CI_OnlineResource>
               </gmd:onLine>
            </gmd:MD_DigitalTransferOptions>
         </gmd:transferOptions>
         <gmd:transferOptions>
            <gmd:MD_DigitalTransferOptions>
               <gmd:onLine>
                  <gmd:CI_OnlineResource>
                     <gmd:linkage>
                        <gmd:URL>http://onlinelibrary.wiley.com/doi/10.1029/2011GL047871/abstract</gmd:URL>
                     </gmd:linkage>
                     <gmd:name>
                        <gco:CharacterString>Parker et al., 2011,'Methane observations from the Greenhouse Gases Observing SATellite: Comparison to ground-based TCCON data and model calculations'</gco:CharacterString>
                     </gmd:name>
                     <gmd:description>
                        <gco:CharacterString>No further details.</gco:CharacterString>
                     </gmd:description>
                     <gmd:function>
                        <gmd:CI_OnLineFunctionCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode"
                                                   codeListValue="information">information</gmd:CI_OnLineFunctionCode>
                     </gmd:function>
                  </gmd:CI_OnlineResource>
               </gmd:onLine>
            </gmd:MD_DigitalTransferOptions>
         </gmd:transferOptions>
         <gmd:transferOptions>
            <gmd:MD_DigitalTransferOptions>
               <gmd:onLine>
                  <gmd:CI_OnlineResource>
                     <gmd:linkage>
                        <gmd:URL>http://www.esa-ghg-cci.org/index.php?q=webfm_send/282</gmd:URL>
                     </gmd:linkage>
                     <gmd:name>
                        <gco:CharacterString>Comprehensive Error Characterisation Report: University of Leicester proxy XCH4 retrieval algorithm for CRDP3 – OCPR v6.0</gco:CharacterString>
                     </gmd:name>
                     <gmd:description>
                        <gco:CharacterString>No further details.</gco:CharacterString>
                     </gmd:description>
                     <gmd:function>
                        <gmd:CI_OnLineFunctionCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode"
                                                   codeListValue="information">information</gmd:CI_OnLineFunctionCode>
                     </gmd:function>
                  </gmd:CI_OnlineResource>
               </gmd:onLine>
            </gmd:MD_DigitalTransferOptions>
         </gmd:transferOptions>
         <gmd:transferOptions>
            <gmd:MD_DigitalTransferOptions>
               <gmd:onLine>
                  <gmd:CI_OnlineResource>
                     <gmd:linkage>
                        <gmd:URL>http://www.leos.le.ac.uk/GHG/data/</gmd:URL>
                     </gmd:linkage>
                     <gmd:name>
                        <gco:CharacterString>University of Leicester GHG website</gco:CharacterString>
                     </gmd:name>
                     <gmd:description>
                        <gco:CharacterString>No further details.</gco:CharacterString>
                     </gmd:description>
                     <gmd:function>
                        <gmd:CI_OnLineFunctionCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode"
                                                   codeListValue="information">information</gmd:CI_OnLineFunctionCode>
                     </gmd:function>
                  </gmd:CI_OnlineResource>
               </gmd:onLine>
            </gmd:MD_DigitalTransferOptions>
         </gmd:transferOptions>
         <gmd:transferOptions>
            <gmd:MD_DigitalTransferOptions>
               <gmd:onLine>
                  <gmd:CI_OnlineResource>
                     <gmd:linkage>
                        <gmd:URL>http://www.esa-ghg-cci.org/index.php?q=webfm_send/160</gmd:URL>
                     </gmd:linkage>
                     <gmd:name>
                        <gco:CharacterString>Product Specification Document Version 3 (PSDv3)</gco:CharacterString>
                     </gmd:name>
                     <gmd:description>
                        <gco:CharacterString>No further details.</gco:CharacterString>
                     </gmd:description>
                     <gmd:function>
                        <gmd:CI_OnLineFunctionCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode"
                                                   codeListValue="information">information</gmd:CI_OnLineFunctionCode>
                     </gmd:function>
                  </gmd:CI_OnlineResource>
               </gmd:onLine>
            </gmd:MD_DigitalTransferOptions>
         </gmd:transferOptions>
         <gmd:transferOptions>
            <gmd:MD_DigitalTransferOptions>
               <gmd:onLine>
                  <gmd:CI_OnlineResource>
                     <gmd:linkage>
                        <gmd:URL>http://www.esa-ghg-cci.org/?q=webfm_send/303</gmd:URL>
                     </gmd:linkage>
                     <gmd:name>
                        <gco:CharacterString>Product User Guide</gco:CharacterString>
                     </gmd:name>
                     <gmd:description>
                        <gco:CharacterString>No further details.</gco:CharacterString>
                     </gmd:description>
                     <gmd:function>
                        <gmd:CI_OnLineFunctionCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode"
                                                   codeListValue="information">information</gmd:CI_OnLineFunctionCode>
                     </gmd:function>
                  </gmd:CI_OnlineResource>
               </gmd:onLine>
            </gmd:MD_DigitalTransferOptions>
         </gmd:transferOptions>
         <gmd:transferOptions>
            <gmd:MD_DigitalTransferOptions>
               <gmd:onLine>
                  <gmd:CI_OnlineResource>
                     <gmd:linkage>
                        <gmd:URL>http://data.ceda.ac.uk/neodc/esacci/ghg/metadata/sample_images/ESACCI-GHG-L2-CH4-GOSAT-OCPR-20100401-fv52.png</gmd:URL>
                     </gmd:linkage>
                     <gmd:name>
                        <gco:CharacterString>Sample Image</gco:CharacterString>
                     </gmd:name>
                     <gmd:description>
                        <gco:CharacterString>No further details.</gco:CharacterString>
                     </gmd:description>
                     <gmd:function>
                        <gmd:CI_OnLineFunctionCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode"
                                                   codeListValue="information">information</gmd:CI_OnLineFunctionCode>
                     </gmd:function>
                  </gmd:CI_OnlineResource>
               </gmd:onLine>
            </gmd:MD_DigitalTransferOptions>
         </gmd:transferOptions>
         <gmd:transferOptions>
            <gmd:MD_DigitalTransferOptions>
               <gmd:onLine>
                  <gmd:CI_OnlineResource>
                     <gmd:linkage>
                        <gmd:URL>https://climate.esa.int/projects/ghgs/</gmd:URL>
                     </gmd:linkage>
                     <gmd:name>
                        <gco:CharacterString>ESA CCI Greenhouse Gases project website</gco:CharacterString>
                     </gmd:name>
                     <gmd:description>
                        <gco:CharacterString>No further details.</gco:CharacterString>
                     </gmd:description>
                     <gmd:function>
                        <gmd:CI_OnLineFunctionCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode"
                                                   codeListValue="information">information</gmd:CI_OnLineFunctionCode>
                     </gmd:function>
                  </gmd:CI_OnlineResource>
               </gmd:onLine>
            </gmd:MD_DigitalTransferOptions>
         </gmd:transferOptions>
      </gmd:MD_Distribution>
  </gmd:distributionInfo>
  <gmd:dataQualityInfo>
      <gmd:DQ_DataQuality>
         <gmd:scope>
            <gmd:DQ_Scope>
               <gmd:level>
                  <gmd:MD_ScopeCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/codelist/gmxCodelists.xml#MD_ScopeCode"
                                    codeListValue="dataset">dataset</gmd:MD_ScopeCode>
               </gmd:level>
            </gmd:DQ_Scope>
         </gmd:scope>
         <gmd:report>
            <gmd:DQ_DomainConsistency>
               <gmd:result>
                  <gmd:DQ_ConformanceResult>
                     <gmd:specification>
                        <gmd:CI_Citation>
                           <gmd:title>
                              <gco:CharacterString>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</gco:CharacterString>
                           </gmd:title>
                           <gmd:date>
                              <gmd:CI_Date>
                                 <gmd:date>
                                    <gco:Date>2010-12-08</gco:Date>
                                 </gmd:date>
                                 <gmd:dateType>
                                    <gmd:CI_DateTypeCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/codelist/gmxCodelists.xml#CI_DateTypeCode"
                                                         codeListValue="publication"/>
                                 </gmd:dateType>
                              </gmd:CI_Date>
                           </gmd:date>
                        </gmd:CI_Citation>
                     </gmd:specification>
                     <gmd:explanation gco:nilReason="inapplicable"/>
                     <gmd:pass gco:nilReason="unknown"/>
                  </gmd:DQ_ConformanceResult>
               </gmd:result>
            </gmd:DQ_DomainConsistency>
         </gmd:report>
         <gmd:lineage>
            <gmd:LI_Lineage>
               <gmd:statement>
                  <gco:CharacterString>Data were processed by the ESA CCI GHG project team and supplied to CEDA as part of the ESA CCI Open Data Portal Project</gco:CharacterString>
               </gmd:statement>
            </gmd:LI_Lineage>
         </gmd:lineage>
      </gmd:DQ_DataQuality>
  </gmd:dataQualityInfo>
</gmd:MD_Metadata>