STUDY ON RECOVERING EARTH’S GRAVITY FIELD WITH
GOCE’S SST-HL DATA
1）Xi’an Research Institute of Surveying and Mapping，Xi’an 710054
Abstract A practical mathematic model was established based on the least squares method and spherical harmonic analysis method for solving the EGM from disturbing potential data.The results show that there are some influences on the EGM results when the observation data are in different data quantity and sampling rate.The precisions of the EGMs recovered with different resolutions are different between each others.The result recovered with the spherical harmonic analysis method is better than that with the least squares method.
Key words ：
SST-hl
EGM
energy balance approach
spherical harmonic analysis method
least squares method
Received: 17 January 2014
Published: 09 December 2014
Cite this article:
Liu Xiaogang,Sun Wen,Li Xinxing et al. STUDY ON RECOVERING EARTH’S GRAVITY FIELD WITH
GOCE’S SST-HL DATA[J]. jgg, 2014, 34(6): 66-71.
Liu Xiaogang,Sun Wen,Li Xinxing et al. STUDY ON RECOVERING EARTH’S GRAVITY FIELD WITH
GOCE’S SST-HL DATA[J]. jgg, 2014, 34(6): 66-71.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2014/V34/I6/66
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