Released
Model

The gravity field model based on the second invariant of the GOCE gravitational gradient tensor: IGGT_R1

Cite as:

Lu, Biao; Luo, Zhicai; Zhong, Bo; Zhou, Hao; Flechtner, Frank; Förste, Christoph; Barthelmes, Franz; Zhou, Rui (2017): The gravity field model based on the second invariant of the GOCE gravitational gradient tensor: IGGT_R1. GFZ Data Services. http://doi.org/10.5880/icgem.2017.007

Status

I   N       R   E   V   I   E   W : Lu, Biao; Luo, Zhicai; Zhong, Bo; Zhou, Hao; Flechtner, Frank; Förste, Christoph; Barthelmes, Franz; Zhou, Rui (2017): The gravity field model based on the second invariant of the GOCE gravitational gradient tensor: IGGT_R1. GFZ Data Services. http://doi.org/10.5880/icgem.2017.007

Abstract

IGGT_R1 is a static gravity field model based on the second invariant of the GOCE gravitational gradient tensor, up to degree and order 240. Based on tensor theory, three invariants of the gravitational gradient tensor (IGGT) are independent of the gradiometer reference frame (GRF). Compared to traditional methods for calculation of gravity field models based on GOCE data, which are affected by errors in the attitude indicator, using IGGT and least squares method avoids the problem of inaccurate rotation matrices. IGGT_R1 is the first experiment to use this method to build a real gravity field model by using GOCE gravitational gradients.

This new model has been developed by Wuhan University (WHU), GFZ German Research Centre for Geosciences (GFZ), Technical University of Berlin (TUB), Huazhong University of Science and Technology (HUST) and Zhengzhou Information Engineering University (IEU). More details about the gravity field model IGGT_R1 is given in our paper “The gravity field model IGGT_R1 based on the second invariant of the GOCE gravitational gradient tensor” (Lu et al., 2017, http://doi.org/10.1007/s00190-017-1089-8).

This work is supported by the Chinese Scholarship Council (No. 201506270158), the Natural Science Foundation of China (Nos. 41104014, 41131067, 41374023, 41474019 and 41504013) and the Key Laboratory of Geospace Environment and Geodesy, Ministry Education, Wuhan University (No. 16-02-07).

Parameters

product_typegravity_field
modelnameIGGT_R1
earth_gravity_constant0.3986004415E+15 [m3/s2]
radius0.6378136460E+07 [m]
max_degree240
errorsformal
normfully_normalized
tide_systemtide_free

Dataset Contact

  • Lu, Biao (PhD student) ; GFZ German Research Centre for Geosciences, Telegrafenberg, 14473 Potsdam, Germany; Department of Geodesy and Geoinformation Science, Technical University of Berlin, 10623 Berlin, Germany; School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, People’s Republic of China.;

Contributors

Ince, Elmas Sinem; Reißland, Sven

Keywords

geodesy, geophysics, IGGT_R1, GOCE, ICGEM, Geodesy

GCMD Science Keywords

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      • publisher: GFZ Data Services
      • publicationYear: 2017
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        • subject: Geodesy
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      • Entry_Title: The gravity field model based on the second invariant of the GOCE gravitational gradient tensor: IGGT_R1
      • Data_Set_Citation
        • Dataset_Creator: Lu, Biao; Luo, Zhicai; Zhong, Bo; Zhou, Hao; Flechtner, Frank; Förste, Christoph; Barthelmes, Franz; Zhou, Rui
        • Dataset_Title: The gravity field model based on the second invariant of the GOCE gravitational gradient tensor: IGGT_R1
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        • Dataset_Publisher: GFZ Data Services
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        • Topic: SOLID EARTH
        • Term: GRAVITY/GRAVITATIONAL FIELD
        • Variable_Level_1: GRAVITATIONAL FIELD
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        • Topic: SOLID EARTH
        • Term: GEODETICS
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      • Keyword: GOCE
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      • Keyword: Geodesy
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      • Summary
        • Abstract: IGGT_R1 is a static gravity field model based on the second invariant of the GOCE gravitational gradient tensor, up to degree and order 240. Based on tensor theory, three invariants of the gravitational gradient tensor (IGGT) are independent of the gradiometer reference frame (GRF). Compared to traditional methods for calculation of gravity field models based on GOCE data, which are affected by errors in the attitude indicator, using IGGT and least squares method avoids the problem of inaccurate rotation matrices. IGGT_R1 is the first experiment to use this method to build a real gravity field model by using GOCE gravitational gradients. This new model has been developed by Wuhan University (WHU), GFZ German Research Centre for Geosciences (GFZ), Technical University of Berlin (TUB), Huazhong University of Science and Technology (HUST) and Zhengzhou Information Engineering University (IEU). More details about the gravity field model IGGT_R1 is given in our paper “The gravity field model IGGT_R1 based on the second invariant of the GOCE gravitational gradient tensor” (Lu et al., 2017, http://doi.org/10.1007/s00190-017-1089-8). This work is supported by the Chinese Scholarship Council (No. 201506270158), the Natural Science Foundation of China (Nos. 41104014, 41131067, 41374023, 41474019 and 41504013) and the Key Laboratory of Geospace Environment and Geodesy, Ministry Education, Wuhan University (No. 16-02-07).
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      • creator
        • creatorName: Zhong, Bo
        • affiliation: School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, People’s Republic of China
      • creator
        • creatorName: Zhou, Hao
        • affiliation: Huazhong University of Science and Technology, Wuhan, PR China
      • creator
        • creatorName: Flechtner, Frank
        • affiliation: GFZ German Research Centre for Geosciences, Potsdam, Germany
      • creator
        • creatorName: Förste, Christoph
        • affiliation: GFZ German Research Centre for Geosciences, Potsdam, Germany
      • creator
        • creatorName: Barthelmes, Franz
        • affiliation: GFZ German Research Centre for Geosciences, Potsdam, Germany
      • creator
        • creatorName: Zhou, Rui
        • affiliation: Zhengzhou Information Engineering University

Location

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    Files

    License: CC BY 4.0

    Model Description

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