Released
Dataset

International Combination Service for Time-variable Gravity Fields (COST-G) Monthly GRACE-FO Series

Cite as:

Meyer, Ulrich; Lasser, Martin; Jaeggi, Adrian; Dahle, Christoph; Flechtner, Frank; Kvas, Andreas; Behzadpour, Saniya; Mayer-Gürr, Torsten; Lemoine, Jean-Michel; Koch, Igor; Flury, Jakob; Bourgogne, Stéphane (2020): International Combination Service for Time-variable Gravity Fields (COST-G) Monthly GRACE-FO Series. V. 01. GFZ Data Services. https://doi.org/10.5880/ICGEM.COST-G.002

Status

I   N       R   E   V   I   E   W : Meyer, Ulrich; Lasser, Martin; Jaeggi, Adrian; Dahle, Christoph; Flechtner, Frank; Kvas, Andreas; Behzadpour, Saniya; Mayer-Gürr, Torsten; Lemoine, Jean-Michel; Koch, Igor; Flury, Jakob; Bourgogne, Stéphane (2020): International Combination Service for Time-variable Gravity Fields (COST-G) Monthly GRACE-FO Series. V. 01. GFZ Data Services. https://doi.org/10.5880/ICGEM.COST-G.002

Abstract

Operationally combined monthly gravity fields of the GRACE-FO satellite mission in spherical harmonic representation (Level-2 product) generated by the Combination Service for Time-variable Gravity Fields (COST-G; Jäggi et al. (2020):http://dx.doi.org/10.1007/1345_2020_109), a product center for time-variable gravity fields of IAG's International Gravity Field Service (IGFS). COST-G_GRACE-FO_RL01_OP is a combination of AIUB-GRACE-FO_op, GFZ-RL06 (GFO), GRGS-RL05 (unconstrained solution), ITSG-Grace_op, LUH-GRACE-FO, CSR-RL06 (GFO) and JPL-RL06 (GFO). The original time-series were provided by the analysis centers (ACs) and partner analysis centers (PCs) of COST-G.

Methods

COST-G performs a harmonization and quality control of the individual input solutions of the COST-G ACs and PCs. The combination of COST-G_GRACE-FO_RL01_OP is then performed applying variance component estimation on the solution level (Jean et al., 2018): https://doi.org/10.1007/s00190-018-1123-5). The resulting COST-G combined gravity fields are validated assessing their signal and noise content in the spectral and spatial domain (Meyer et al., 2019: https://doi.org/10.1007/s00190-019-01274-6) and by the COST-G Product Evaluation Group (PEG).

Authors

  • Meyer, Ulrich;AIUB Astronomical Institute University of Bern, Bern, Switzerland
  • Lasser, Martin;AIUB Astronomical Institute University of Bern, Bern, Switzerland
  • Jaeggi, Adrian;AIUB Astronomical Institute University of Bern, Bern, Switzerland
  • Dahle, Christoph;GFZ German Research Centre for Geosciences, Potsdam, Germany
  • Flechtner, Frank;GFZ German Research Centre for Geosciences, Potsdam, Germany
  • Kvas, Andreas;IFG Institute of Geodesy, Graz University of Technology, Graz, Austria
  • Behzadpour, Saniya;IFG Institute of Geodesy, Graz University of Technology, Graz, Austria
  • Mayer-Gürr, Torsten;IFG Institute of Geodesy, Graz University of Technology, Graz, Austria
  • Lemoine, Jean-Michel;CNES Centre National d’Etudes Spatiales, Toulouse, France
  • Koch, Igor;Leibniz University Hannover, Hannover, Germany
  • Flury, Jakob;Leibniz University Hannover, Hannover, Germany
  • Bourgogne, Stéphane;Stellar Space Studies, Toulouse, France

Contact

  • Meyer, Ulrich (Analysis Center Coordinator) ; AIUB Astronomical Institute University of Bern, Bern, Switzerland;

Keywords

COST-G, IGFS Product Center, Combined solutions, Time variable gravity

GCMD Science Keywords

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                • DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=Cites): Cites
          • aggregationInfo
            • MD_AggregateInformation
              • aggregateDataSetIdentifier
                • RS_Identifier
                  • code
                    • CharacterString: 10.1007/s00190-018-1123-5
                  • codeSpace
                    • CharacterString: DOI
              • associationType
                • DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=Cites): Cites
          • aggregationInfo
            • MD_AggregateInformation
              • aggregateDataSetIdentifier
                • RS_Identifier
                  • code
                    • CharacterString: 10.1007/s00190-019-01274-6
                  • codeSpace
                    • CharacterString: DOI
              • associationType
                • DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=Cites): Cites
          • aggregationInfo
            • MD_AggregateInformation
              • aggregateDataSetIdentifier
                • RS_Identifier
                  • code
                    • CharacterString: https://cost-g.org/
                  • codeSpace
                    • CharacterString: URL
              • associationType
                • DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=References): References
          • aggregationInfo
            • MD_AggregateInformation
              • aggregateDataSetIdentifier
                • RS_Identifier
                  • code
                    • CharacterString: 10.3390/rs11182116
                  • codeSpace
                    • CharacterString: DOI
              • associationType
                • DS_AssociationTypeCode (codeList=http://datacite.org/schema/kernel-4 codeListValue=References): References
          • language
            • CharacterString: eng
          • characterSet
            • MD_CharacterSetCode (codeListValue=utf8 codeList=http://www.isotc211.org/2005/resources/codeList.xml#MD_CharacterSetCode): 
          • topicCategory
            • MD_TopicCategoryCode: geoscientificInformation
          • extent
            • EX_Extent
              • geographicElement
                • EX_GeographicBoundingBox
                  • westBoundLongitude
                    • Decimal: -180
                  • eastBoundLongitude
                    • Decimal: 180
                  • southBoundLatitude
                    • Decimal: -90
                  • northBoundLatitude
                    • Decimal: 90
              • temporalElement
                • EX_TemporalExtent
                  • extent
                    • TimePeriod (xsi:type=gml:TimePeriodType gml:id=T5fb6873704f55)
                      • beginPosition: 2018-06-01
                      • endPosition: 2020-07-31
      • distributionInfo
        • MD_Distribution
          • transferOptions
            • MD_DigitalTransferOptions
              • onLine
                • CI_OnlineResource
                  • linkage
                    • URL: http://doi.org/10.5880/ICGEM.COST-G.002
                  • protocol
                    • CharacterString: WWW:LINK-1.0-http--link
                  • name
                    • CharacterString: Data Access - DOI
                  • description
                    • CharacterString: Data Access - DOI
                  • function
                    • CI_OnLineFunctionCode (codeList=http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode codeListValue=http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode_information): information
      • dataQualityInfo
        • DQ_DataQuality
          • scope
            • DQ_Scope
              • level
                • MD_ScopeCode (codeListValue=dataset codeList=http://www.isotc211.org/2005/resources/codeList.xml#MD_ScopeCode): 
          • lineage
            • LI_Lineage
              • statement
                • CharacterString: COST-G performs a harmonization and quality control of the individual input solutions of the COST-G ACs and PCs. The combination of COST-G_GRACE-FO_RL01_OP is then performed applying variance component estimation on the solution level (Jean et al., 2018): https://doi.org/10.1007/s00190-018-1123-5). The resulting COST-G combined gravity fields are validated assessing their signal and noise content in the spectral and spatial domain (Meyer et al., 2019: https://doi.org/10.1007/s00190-019-01274-6) and by the COST-G Product Evaluation Group (PEG).

Location

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    License: CC BY 4.0

    Dataset Description

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