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Load Correction of Island Gravity Survey and Its Influence Factors
Pages: 14-16,29
Year: Issue:  1
Journal: Hydrographic Surveying and Charting

Keyword:  gravity measurementocean load correctionocean tide modelearth modelisland;
Abstract: 利用927工程海岛绝对重力测量数据,研究了海潮负荷改正计算软件、海潮模型以及地球模型三因素对绝对重力海潮负荷改正的影响.根据计算结果,观测期间由不同海潮负荷计算软件造成的海潮重力值差异可达5.985 7μGal,不同海潮模型的差异可达2.532 7μGal,不同地球模型的差异可达5.928 3μGal.结论认为,在海岛绝对重力测量数据处理中,必须充分考虑以上因素造成的海潮负荷改正差异.
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