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Computation and Analysis of the Non-harmonic Constants of Tides in China’s Sea Areas
Author(s): 
Pages: 79-83
Year: Issue:  1
Journal: Ocean Technology

Keyword:  harmonic analysisharmonic constantsnon-harmonic constantstidal characteristics;
Abstract: The tidal non-harmonic constants are calculated by utilizing the long-term gauge tidal data along China’s coast in combination with the results of the global tide model NAO.99 b for China’s sea areas. In terms of the Bohai Sea, Yellow Sea, East China Sea and South China Sea, the results show that China has complex tidal characteristics. The Bohai Sea, Yellow Sea and East China Sea are mainly featured by semi-diurnal tides, with diurnal tides in the South China Sea. The mean spring range in the Bohai Sea and South China Sea is mainly around 0.42-2.09 m, and the mean neap range is 0.27-1.33 m. In comparison, the mean spring range in the East China Sea and Yellow Sea is 1.12-4.44 m, with the mean neap range of 0.42-2.41 m. The mean high water spring in the Bohai Sea and Yellow Sea ranges 0.48-1.77 m, with that of 0.42-2.41 m in the East China Sea and0.21-1.35 m in the South China Sea. The range tidal day phenomenon is obvious in the Bohai Sea, East China Sea and the shallow waters of Northern South China Sea.
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