Abstract：Through example of IGS stations in China’s inland and coastal，the FES2004 and NAO99b ocean tidal model which are advanced models at present and different earth models are adopted to calculate the effect of ocean tide loading on displacement of station and baseline length,the results show that the magnitude of the effect on displacement of station is up to centimeter，which is mainly reflected on the U direction，the magnitude of offshore stations is 3-4 times as large as that of inland stations，the differences between the different ocean models achieve the magnitude of millimeter in coastal areas，and the differences between different earth model is small，which can be ignored，the relative influence of ocean tide loading on GPS baseline length is about 10-8.The data of several days is processed through GAMIT，the results of calculation show that the effect of ocean loading on baseline components is similar to that of stations，the magnitude of which is millimeter，the influence on the determination of zenith delay in coastal regions can be up to 1 cm.
Fang Chuan,Gao Jingxiang,Wang Jian et al. EFFECT OF OCEAN TIDE LOADING ON HIGH PRECISE GPS
MEASUREMENT BASED ON DIFFERENT MODELS[J]. jgg, 2014, 34(4): 135-139.
