Released
Dataset

Tongji-Grace02s, a static unconstrained GRACE-only gravity field model

Cite as:

Chen, Qiujie; Shen, Yunzhong; Chen, Wu; Zhang, Xingfu (2017): Tongji-Grace02s, a static unconstrained GRACE-only gravity field model. GFZ Data Services. http://doi.org/10.5880/icgem.2017.002

Status

I   N       R   E   V   I   E   W : Chen, Qiujie; Shen, Yunzhong; Chen, Wu; Zhang, Xingfu (2017): Tongji-Grace02s, a static unconstrained GRACE-only gravity field model. GFZ Data Services. http://doi.org/10.5880/icgem.2017.002

Abstract

Tongji-Grace02s, a static unconstrained GRACE-only gravity field model up to degree and order 180 was developed by Tongji University under the sponsorship of National Natural Science Foundation of China (41474017). To derive Tongji-Grace02s, the modified short-arc approach which estimates errors of non-conservative acceleration and attitude observations was adopted, and the GRACE-only data (including orbits, range-rates, non-conservative accelerations and attitudes) over the period Jan. 2003 to Jul. 2016 were used. The quality of Tongji-Grace02s is remarkably better than Tongji-GRACE01. In computing Tongji-Grace02s, neither constraint nor regularization was applied.

Parameters

product_typegravity_field
modelnameTongji-Grace02s
generating_instituteTongji University
earth_gravity_constant3.9860044150e+14
radius6.3781363000e+06
max_degree180
errorsformal
normfully_normalized
tide_systemzero_tide

Dataset Contact

  • Chen, Qiujie; College of Surveying and Geo-informatics, Tongji University, Shanghai, China;

Contributors

Barthelmes, Franz; Reißland, Sven

Keywords

unconstrained static gravity field model, ICGEM, GRACE-only, geodesy

GCMD Science Keywords

More Metadata

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          • affiliation: College of Surveying and Geo-informatics, Tongji University, Shanghai, China
        • creator
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        • creator
          • creatorName: Chen, Wu
        • creator
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        • title (xml:lang=eng): Tongji-Grace02s, a static unconstrained GRACE-only gravity field model
      • publisher: GFZ Data Services
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        • subject: ICGEM
        • subject: GRACE-only
        • subject: geodesy
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          • contributorName: Chen, Qiujie
          • affiliation: College of Surveying and Geo-informatics, Tongji University, Shanghai, China
        • contributor (contributorType=DataCurator)
          • contributorName: Barthelmes, Franz
          • affiliation: GFZ German Research Centre for Geosciences, Potsdam, Germany
        • contributor (contributorType=DataManager)
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          • affiliation: GFZ German Research Centre for Geosciences, Potsdam, Germany
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      • descriptions
        • description (descriptionType=Abstract): Tongji-Grace02s, a static unconstrained GRACE-only gravity field model up to degree and order 180 was developed by Tongji University under the sponsorship of National Natural Science Foundation of China (41474017). To derive Tongji-Grace02s, the modified short-arc approach which estimates errors of non-conservative acceleration and attitude observations was adopted, and the GRACE-only data (including orbits, range-rates, non-conservative accelerations and attitudes) over the period Jan. 2003 to Jul. 2016 were used. The quality of Tongji-Grace02s is remarkably better than Tongji-GRACE01. In computing Tongji-Grace02s, neither constraint nor regularization was applied.
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  • dif:  /  download xml
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      • Entry_Title: Tongji-Grace02s, a static unconstrained GRACE-only gravity field model
      • Data_Set_Citation
        • Dataset_Creator: Chen, Qiujie ; Shen, Yunzhong; Chen, Wu; Zhang, Xingfu
        • Dataset_Title: Tongji-Grace02s, a static unconstrained GRACE-only gravity field model
        • Dataset_Release_Date: 2017
        • Dataset_Release_Place: Potsdam, Germany
        • Dataset_Publisher: GFZ Data Services
        • Online_Resource: http://dx.doi.org/10.5880/icgem.2017.002
      • Parameters
        • Category: EARTH SCIENCE
        • Topic: SOLID EARTH
        • Term: GRAVITY/GRAVITATIONAL FIELD
      • Parameters
        • Category: EARTH SCIENCE
        • Topic: SOLID EARTH
        • Term: GEODETICS
        • Variable_Level_1: GEOID CHARACTERISTICS
      • ISO_Topic_Category: geoscientificInformation
      • Keyword: unconstrained static gravity field model
      • Keyword: ICGEM
      • Keyword: GRACE-only
      • Keyword: geodesy
      • 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: Tongji-Grace02s, a static unconstrained GRACE-only gravity field model up to degree and order 180 was developed by Tongji University under the sponsorship of National Natural Science Foundation of China (41474017). To derive Tongji-Grace02s, the modified short-arc approach which estimates errors of non-conservative acceleration and attitude observations was adopted, and the GRACE-only data (including orbits, range-rates, non-conservative accelerations and attitudes) over the period Jan. 2003 to Jul. 2016 were used. The quality of Tongji-Grace02s is remarkably better than Tongji-GRACE01. In computing Tongji-Grace02s, neither constraint nor regularization was applied.
      • Metadata_Name: DIF
      • Metadata_Version: 9.8.2
  • parameters:  /  download xml
    • envelope
      • parameters
        • field (type=product_type): gravity_field
        • field (type=modelname): Tongji-Grace02s
        • field (type=generating_institute): Tongji University
        • field (type=earth_gravity_constant): 3.9860044150e+14
        • field (type=radius): 6.3781363000e+06
        • field (type=max_degree): 180
        • field (type=errors): formal
        • field (type=norm): fully_normalized
        • field (type=tide_system): zero_tide
  • escidoc:  /  download xml
    • resource
      • title (xml:lang=eng): Tongji-Grace02s, a static unconstrained GRACE-only gravity field model
      • creator
        • creatorName: Chen, Qiujie
        • affiliation: College of Surveying and Geo-informatics, Tongji University, Shanghai, China
      • creator
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      • creator
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      • creator
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Location

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    Files

    License: CC BY 4.0