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中文摘要：
利用全球海潮模型FES2004、GOT4.7和NAO.99b研究了海潮负荷对成山头、平潭、遮浪和西沙四个国家海洋局GPS观测站位移的影响,结果表明,在沿海地区海潮负荷对单点定位的影响达到厘米级,在西沙甚至达到3cm。此外,通过对3种海潮模型计算结果的对比分析可知,NAO.99b海潮模型最适用于我国沿海地区。
英文摘要：
The effects of the ocean iide loading （OTL） on the displacements of four GPS observation stations located at Chengshantou, Pingtan, Zhelang and Xisha are studied by using global ocean tide models FES2004, GOT4.7 and NAO. 99b. The results show that in the coastal area the influence of OTL on the positioning of a single site can reach to an order of centimeter, being 3 cm at Xisha site. The comparison of the results from the calculations of the three global ocean tide models indicates that Model NAO. 99b is the most applicable to the coastal zone of China.
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