Influence of tide models on the use of altimetry data to research sea level anomaly |
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Authors: | Jun Xu Jingyang Bao Yanchun Liu Caixia Yu |
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Affiliation: | Department of Hydrography and Cartography , Dalian Naval Academy , Dalian , China |
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Abstract: | A tide model (named DN1.0), which contains 12 principal constituents over China seas and the Northwest Pacific is estimated by along-track harmonic analysis with TOPEX/Poseidon altimetry data taken from 1993 to 2002. CSR3.0, FES95.2 and DN1.0 are used respectively to detide the data for the time series of sea level anomaly (SLA) in the Yellow Sea, East China Sea, South China Sea and Northwest Pacific. The SLA curves and the power spectral density show that the major components that exist in SLA in China seas arise from the error of the tide models. |
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Keywords: | satellite altimetry sea level anomaly tide model tidal aliasing |
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