Released
Dataset

EIGEN-6S4 A time-variable satellite-only gravity field model to d/o 300 based on LAGEOS, GRACE and GOCE data from the collaboration of GFZ Potsdam and GRGS Toulouse

Cite as:

Förste, Christoph; Bruinsma, Sean; Abrikosov, Oleh; Rudenko, Sergiy; Lemoine, Jean-Michel; Marty, Jean-Charles; Neumayer, Karl Hans; Biancale, Richard (2016): EIGEN-6S4 A time-variable satellite-only gravity field model to d/o 300 based on LAGEOS, GRACE and GOCE data from the collaboration of GFZ Potsdam and GRGS Toulouse. V. 2.0. GFZ Data Services. http://doi.org/10.5880/icgem.2016.008

Status

I   N       R   E   V   I   E   W : Förste, Christoph; Bruinsma, Sean; Abrikosov, Oleh; Rudenko, Sergiy; Lemoine, Jean-Michel; Marty, Jean-Charles; Neumayer, Karl Hans; Biancale, Richard (2016): EIGEN-6S4 A time-variable satellite-only gravity field model to d/o 300 based on LAGEOS, GRACE and GOCE data from the collaboration of GFZ Potsdam and GRGS Toulouse. V. 2.0. GFZ Data Services. http://doi.org/10.5880/icgem.2016.008

Abstract

EIGEN-6S4 (Version 2) is a satellite-only global gravity field model from the combination of LAGEOS, GRACE and GOCE data. All spherical harmonic coefficients up to degree/order 80 are time variable. Their time variable parameters consist of drifts as well as annual and semi-annual variations per year. The time series of the time variable spherical harmonic coefficients are based on the LAGEOS-1/2 solution (1985 to 2003) and the GRACE-LAGEOS monthly gravity fields RL03-v2 (August 2002 to July 2014) from GRGS/Toulouse (Bruinsma et al. 2009).

The herein included GRACE/LAGEOS data were combined with all GOCE data which have been processed via the direct numerical approach (Pail et al. 2011). The polar gap instabilty has been overcome using the Sperical Cap Regularization (Metzler and Pail 2005). That means this model is a combination of LAGEOS/GACE with GO_CONS_GCF_2_DIR_R5 (Bruinsma et al. 2013).

Version History: This data set is an updated version of Foerste et al. (2016, http://doi.org/10.5880/icgem.2016.004) Compared to the first version, EIGEN-6S4v2 contains an improved modelling of the time variable part, in particular for C20.

Parameters

formaticgem2.0
product_typegravity_field
modelnameEIGEN-6S4v2
earth_gravity_constant0.3986004415E+15
radius0.6378136460E+07
max_degree300
errorscalibrated (sigma calibration factor = 2.00)
normfully_normalized
tide_systemtide_free

Dataset Contact

Contributors

Barthelmes, Franz; Reißland, Sven

Keywords

ICGEM, Global Gravitational Model, GRACE, GOCE, LAGEOS

GCMD Science Keywords

More Metadata

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      • identifier (identifierType=DOI): 10.5880/icgem.2016.008
      • creators
        • creator
          • creatorName: Förste, Christoph
          • affiliation: GFZ German Research Centre for Geosciences, Potsdam, Germany
        • creator
          • creatorName: Bruinsma, Sean
          • affiliation: GRGS/CNES Toulouse, France
        • creator
          • creatorName: Abrikosov, Oleh
          • affiliation: GFZ German Research Centre for Geosciences, Potsdam, Germany
        • creator
          • creatorName: Rudenko, Sergiy
          • affiliation: GFZ German Research Centre for Geosciences, Potsdam, Germany
        • creator
          • creatorName: Lemoine, Jean-Michel
          • affiliation: GRGS/ CNES Toulouse, France
        • creator
          • creatorName: Marty, Jean-Charles
          • affiliation: GRGS/ CNES Toulouse, France
        • creator
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          • affiliation: GFZ German Research Centre for Geosciences, Potsdam, Germany
        • creator
          • creatorName: Biancale, Richard
          • affiliation: GRGS/ CNES Toulouse, France
      • titles
        • title (xml:lang=en): EIGEN-6S4 A time-variable satellite-only gravity field model to d/o 300 based on LAGEOS, GRACE and GOCE data from the collaboration of GFZ Potsdam and GRGS Toulouse
      • publisher: GFZ Data Services
      • publicationYear: 2016
      • subjects
        • subject: ICGEM
        • subject: Global Gravitational Model
        • subject: GRACE
        • subject: GOCE
        • subject: LAGEOS
      • contributors
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          • contributorName: Förste, Christoph
          • affiliation: GFZ German Research Centre for Geosciences, Potsdam, Germany
        • contributor (contributorType=ContactPerson)
          • contributorName: Bruinsma, Sean
          • affiliation: GRGS/CNES Toulouse, France
        • contributor (contributorType=DataCurator)
          • contributorName: Barthelmes, Franz
          • affiliation: GFZ German Research Centre for Geosciences, Potsdam, Germany
        • contributor (contributorType=DataManager)
          • contributorName: Reißland, Sven
          • affiliation: GFZ German Research Centre for Geosciences, Potsdam, Germany
      • dates
        • date (dateType=Created): 2016-09-30
      • language: en
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      • Entry_Title: EIGEN-6S4 A time-variable satellite-only gravity field model to d/o 300 based on LAGEOS, GRACE and GOCE data from the collaboration of GFZ Potsdam and GRGS Toulouse
      • Data_Set_Citation
        • Dataset_Creator: Förste, Christoph; Bruinsma, Sean; Abrikosov, Oleh; Rudenko, Sergiy; Lemoine, Jean-Michel; Marty, Jean-Charles; Neumayer, Karl Hans; Biancale, Richard
        • Dataset_Title: EIGEN-6S4 A time-variable satellite-only gravity field model to d/o 300 based on LAGEOS, GRACE and GOCE data from the collaboration of GFZ Potsdam and GRGS Toulouse
        • Dataset_Release_Date: 2016
        • Dataset_Release_Place: Potsdam, Germany
        • Dataset_Publisher: GFZ Data Services
        • Online_Resource: http://dx.doi.org/10.5880/icgem.2016.008
      • Parameters
        • Category: EARTH SCIENCE
        • Topic: SOLID EARTH
        • Term: GEODETICS
        • Variable_Level_1: GEOID CHARACTERISTICS
      • Parameters
        • Category: EARTH SCIENCE
        • Topic: SOLID EARTH
        • Term: GRAVITY/GRAVITATIONAL FIELD
        • Variable_Level_1: GRAVITATIONAL FIELD
      • ISO_Topic_Category: geoscientificInformation
      • Keyword: ICGEM
      • Keyword: Global Gravitational Model
      • Keyword: GRACE
      • Keyword: GOCE
      • Keyword: LAGEOS
      • Spatial_Coverage
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        • Northernmost_Latitude: 90
        • Westernmost_Longitude: -180
        • Easternmost_Longitude: 180
      • Data_Center
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          • Long_Name: GFZ
        • Personnel
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          • Last_Name: Deutsches GeoForschungsZentrum GFZ
      • Summary
        • Abstract: EIGEN-6S4 (Version 2) is a satellite-only global gravity field model from the combination of LAGEOS, GRACE and GOCE data. All spherical harmonic coefficients up to degree/order 80 are time variable. Their time variable parameters consist of drifts as well as annual and semi-annual variations per year. The time series of the time variable spherical harmonic coefficients are based on the LAGEOS-1/2 solution (1985 to 2003) and the GRACE-LAGEOS monthly gravity fields RL03-v2 (August 2002 to July 2014) from GRGS/Toulouse (Bruinsma et al. 2009). The herein included GRACE/LAGEOS data were combined with all GOCE data which have been processed via the direct numerical approach (Pail et al. 2011). The polar gap instabilty has been overcome using the Sperical Cap Regularization (Metzler and Pail 2005). That means this model is a combination of LAGEOS/GACE with GO_CONS_GCF_2_DIR_R5 (Bruinsma et al. 2013). Version History: This data set is an updated version of Foerste et al. (2016, http://doi.org/10.5880/icgem.2016.004) Compared to the first version, EIGEN-6S4v2 contains an improved modelling of the time variable part, in particular for C20.
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  • parameters:  /  download xml
    • parameters
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      • field (type=product_type): gravity_field
      • field (type=modelname): EIGEN-6S4v2
      • field (type=earth_gravity_constant): 0.3986004415E+15
      • field (type=radius): 0.6378136460E+07
      • field (type=max_degree): 300
      • field (type=errors): calibrated (sigma calibration factor = 2.00)
      • field (type=norm): fully_normalized
      • field (type=tide_system): tide_free
  • escidoc:  /  download xml
    • resource
      • title (xml:lang=en): EIGEN-6S4 A time-variable satellite-only gravity field model to d/o 300 based on LAGEOS, GRACE and GOCE data from the collaboration of GFZ Potsdam and GRGS Toulouse
      • date (dateType=Created): 2016-09-30
      • creator
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        • affiliation: GFZ German Research Centre for Geosciences, Potsdam, Germany
      • creator
        • creatorName: Bruinsma, Sean
        • affiliation: GRGS/CNES Toulouse, France
      • creator
        • creatorName: Abrikosov, Oleh
        • affiliation: GFZ German Research Centre for Geosciences, Potsdam, Germany
      • creator
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        • affiliation: GFZ German Research Centre for Geosciences, Potsdam, Germany
      • creator
        • creatorName: Lemoine, Jean-Michel
        • affiliation: GRGS/ CNES Toulouse, France
      • creator
        • creatorName: Marty, Jean-Charles
        • affiliation: GRGS/ CNES Toulouse, France
      • creator
        • creatorName: Neumayer, Karl Hans
        • affiliation: GFZ German Research Centre for Geosciences, Potsdam, Germany
      • creator
        • creatorName: Biancale, Richard
        • affiliation: GRGS/ CNES Toulouse, France

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    License: CC BY 4.0