Ocean Loading Tides Corrections of GPS Stations in Antarctica  

作　　者：LIU Youwen JIANG Weiping ZHOU Xiaohui 

机构地区：[1]GNSS Research Center, Wuhan University, 129 Luoyu Road, Wuhan 430079, China [2]不详

出　　处：《Geo-Spatial Information Science》2008年第2期148-151,共4页地球空间信息科学学报（英文）

基　　金：the National 863 Program of China (No.2007AA12Z312)

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 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.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.

关 键 词：GPS ocean loading tides model 

分 类 号：P228.4[天文地球—大地测量学与测量工程]