南极国际GPS跟踪站的海潮位移改正 (英文) |
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作者单位: | GNSS Research Center Wuhan University,129 Luoyu Road,Wuhan 430079,China |
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基金项目: | Supported by the National 863 Program of China (No.2007AA12Z312). |
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摘 要: | This paper describes the ocean loading tides corrections of GPS stations in Antarctica, such as the Great Wall station and Zhongshan station. Based on the theory of ocean loading tides, the displacement corrections of ocean loading tides on GPS stations in Antarctica are calculated by using the CRS4.0 ocean loading tides model. These corrections are also applied to GPS data processing. The GPS data are analyzed by the GAMIT software with and without these corrections. We compared and analyzed the GPS baseline components to get the differences. The results show that the ocean tidal displacement corrections have obvious effects upon GPS baseline components. Therefore, we should not ignore the ocean loading tides corrections of GPS stations in Antarctica to obtain precise and reliable results.
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关 键 词: | 海洋 潮汐现象 全球定位系统 模型设置 |
Ocean loading tides corrections of GPS stations in Antarctica |
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Authors: | Youwen Liu Weiping Jiang Xiaohui Zhou |
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Institution: | (1) GNSS Research Center, Wuhan University, 129 Luoyu Road, Wuhan, 430079, China |
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Abstract: | This paper describes the ocean loading tides corrections of GPS stations in Antarctica, such as the Great Wall station and Zhongshan station. Based on the theory of ocean loading tides, the displacement corrections of ocean loading tides on GPS stations in Antarctica are calculated by using the CRS4.0 ocean loading tides model. These corrections are also applied to GPS data proc-essing. The GPS data are analyzed by the GAMIT software with and without these corrections. We compared and analyzed the GPS baseline components to get the differences. The results show that the ocean tidal displacement corrections have obvious effects upon GPS baseline components. Therefore, we should not ignore the ocean loading tides corrections of GPS stations in Antarctica to obtain precise and reliable results. |
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Keywords: | GPS ocean loading tides model |
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