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

Yu Sun

doi:10.4233/uuid:7fe64dde-7fb5-4392-8160-da6f7916dc6b

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

Yu Sun

Physical and Space Geodesy

Research output: Thesis › Dissertation (TU Delft)

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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.

Original language	English
Awarding Institution	Delft University of Technology
Supervisors/Advisors	Klees, R., Supervisor Riva, R.E.M., Advisor
Award date	24 Oct 2017
Print ISBNs	978-94-6361-016-2
DOIs	https://doi.org/10.4233/uuid:7fe64dde-7fb5-4392-8160-da6f7916dc6b
Publication status	Published - 2017

Keywords

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

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.4233/uuid:7fe64dde-7fb5-4392-8160-da6f7916dc6b

Jade_yusun_dissertation_20170929_elecFinal published version, 2.09 MB

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abstract = "Geocenter motion and changes in the Earth{\textquoteright}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{\textquoteright}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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ER -

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

Abstract

Keywords

UN SDGs

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