research product . Model . 2017

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

Lu, Biao; Luo, Zhicai; Zhong, Bo; Zhou, Hao; Förste, Christoph; Barthelmes, Franz; Flechtner, Frank; Zhou, Rui;
Open Access English
  • Published: 01 Jan 2017
  • Publisher: GFZ Data Services
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 ...
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free text keywords: EARTH SCIENCE SOLID EARTH GEODETICS GEOID CHARACTERISTICS, EARTH SCIENCE SOLID EARTH GRAVITY GRAVITATIONAL FIELD GRAVITATIONAL FIELD, GOCE, Geodesy, ICGEM, IGGT_R1, geophysics, Geodesy, Geoinformatics and Remote Sensing, EARTH SCIENCE > SOLID EARTH > GRAVITY/GRAVITATIONAL FIELD > GRAVITATIONAL FIELD, EARTH SCIENCE > SOLID EARTH > GEODETICS > GEOID CHARACTERISTICS
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