Abstract
This study applies the wavelet analysis to the tidal gauge records, alongshore winds, atmospheric temperature and pressure along the China coast in winter 2008. The analysis results show three events of sea level oscillations (SLOs) on the shelf induced by winter storms. The first event occurred from January 9 to 21. The SLO periods were double-peaked at 1.6–5.3 and 7.0–16.0 d with the power densities of 0.04–0.05 and 0.10–0.15 m2·d, respectively. The second event occurred from February 5 to 18. The SLO period was single-peaked at 2.3–3.5 d with power density of 0.03–0.04 m2·d. The third event occurred from February 20 to March 8. The SLO periods were doublepeaked at 1.5–4.3 and 6.1–8.2 d with the power densities of 0.08–0.11 and 0.02–0.08 m2·d, respectively. The SLOs propagated along the coast from Zhejiang in north to Guangdong in south. The phase speeds ranged about 9–29 m/s from Kanmen to Pingtan, 5–11 m/s from Xiamen to Huizhou and 11–22 m/s from Huizhou to Shuidong. The dispersion relation of the SLOs shows their nature of coastal-trapped wave.
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Foundation item: The National Basic Research Program of China under contract No. 2015CB954004; the National Natural Science Foundation of China under contract Nos 41276006 and U1405233; the US National Science Foundation Award under contract No. AGS-1061998 (for Zheng); the China Scholarship Council under contract No. 201306310082.
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Li, J., Zheng, Q., Hu, J. et al. Wavelet analysis of coastal-trapped waves along the China coast generated by winter storms in 2008. Acta Oceanol. Sin. 34, 22–31 (2015). https://doi.org/10.1007/s13131-015-0701-0
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DOI: https://doi.org/10.1007/s13131-015-0701-0