Paper Title:
Determination of Seasonal Variations of Low-Degree Earth Gravity Field from CHAMP Geometric Orbits
  Abstract

Based on satellite dynamics, 1 year’s CHAMP geometric precise orbit data are used in this paper to fit the satellite orbits by Cowell II numerical integral and partitioned Bayesian least square parameter estimation. Time series of low degree geopotential coefficients and are respectively calculated, which reflects obviously seasonal variations of and . The results / month, /month indicate the geodynamical shape of the earth is getting rounder and rounder and at the same time its pear-shaped component adds gradually.

  Info
Periodical
Edited by
Xuejun Zhou
Pages
2864-2868
DOI
10.4028/www.scientific.net/AMM.90-93.2864
Citation
X. Liu, J. Y. Guo, Q. L. Kong, G. W. Li, "Determination of Seasonal Variations of Low-Degree Earth Gravity Field from CHAMP Geometric Orbits", Applied Mechanics and Materials, Vols. 90-93, pp. 2864-2868, 2011
Online since
September 2011
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