【摘 要】
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The ocean tide model is an important factor in determining high-precision and high-resolution gravity field models, sea surface topography and ocean circulation. With the rapidly development of GNSS t
【机 构】
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College of Geology Engineering and Geomantic, Chang'an University, Xi'an 710054, China
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The ocean tide model is an important factor in determining high-precision and high-resolution gravity field models, sea surface topography and ocean circulation. With the rapidly development of GNSS theory and applications, GNSS-IR technology based on multipath effects has been proved by scholars can be used for tidal level monitoring. In order to further expand the application of GNSS-IR technology in the ocean tide field, this paper takes the GNSS measurement station sc02, which located on the shore of the Friday Harbor in Washington, USA, as an example to analyze the tidal wave with 13-year GNSS dataset. Combined with the traditional tide gauge data, the accuracy analysis of the global ocean tide models TPXO6.2 and TPXO09 using GPS-IR technology is carried out. The experimental results show that: the results of amplitude and retardation obtained from the GNSS-IR inversion tide level are different from the results obtained by the corresponding tide station. But the tidal coefficients, which obtained by the inversion of the tidal level of the GNSS station and which calculated by the ocean tide model, are showing a high consistency. The GNSS-IR technique has higher precision for obtaining the tidal coefficient.
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