Estimating geocenter motion and changes in the Earth’s dynamic oblateness from GRACE and geophysical models

Doctoral thesis (2017)

Authors

Research Group

Physical and Space Geodesy () (TU Delft)

DOI: https://doi.org/10.4233/uuid:7fe64dde-7fb5-4392-8160-da6f7916dc6b

GRACE Geocenter motion J2 Temporal gravity field variations Mass transport Glacial isostatic adjustment Satellite Laser Ranging

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Published Date

2017

Language

English

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Faculty

Civil Engineering & Geosciences

Department

Geoscience and Remote Sensing

Research Group

Physical and Space Geodesy

Abstract

Geocenter motion and changes in the Earth’s dynamic oblateness (J2) are of great importance in many applications. Among others, they are critical indicators of largescale mass redistributions, which is invaluable to understand ongoing global climate change. The revolutionary Gravity Recovery and Climate Experiment (GRACE) satellite mission enables a constant monitoring of redistributing masses within the Earth’s system. However, it still cannot provide reliable time variations in degree-1 coefficients and degree-2 zonal coefficients, which are directly related to geocenter motion and J2 variations.

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