收稿日期: 2005-06-14
修回日期: 2006-02-10
网络出版日期: 2006-05-15
基金资助
中国科学院知识创新工程重要方向性项目“地球深内部结构和动力学研究”(编号：KZCX3-SW-131) ；院百人计划项目“重力场时间变化在地球动力学研究中的应用”；国家自然科学基金项目“利用国际超导重力仪观测资料研究地球自由振荡”(编号：40374029)资助.
Effect of Ocean Tide Loading on Satellite Gravity Determination
Received date: 2005-06-14
Revised date: 2006-02-10
Online published: 2006-05-15
彭碧波 , 孙和平 , 周江存 . 确定卫星重力场中的海潮负荷影响问题[J]. 地球科学进展, 2006 , 21(5) : 482 -486 . DOI: 10.11867/j.issn.1001-8166.2006.05.0482
The theory and error estimation of the influence of ocean tide on the determination of satellite gravity recovery are described briefly. Using the ocean tide model of TPXO6, the effect of ocean tide on gravity determination is investigated and compared with the error of recovered gravity by GRACE. The result shows that M2 constituent of ocean tide contributes most and mainly to the potential coefficients of degrees below 40 and that the error of ocean tide also notably affects the gravity determination of low degrees. This result is adopted to reduce the tidal component in recovered gravity of low degrees and provides reference in relative studies.
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