The observation and analysis of the internal solitary waves by mooring system in the Andaman Sea

CUI Zijian; LIANG Chujin; LIN Feilong; JIN Weifang; DING Tao; WANG Juan

doi:10.3969/j.issn.1001-909X.2020.04.002

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Journal of Marine Sciences ›› 2020, Vol. 38 ›› Issue (4) : 16-25. DOI: 10.3969/j.issn.1001-909X.2020.04.002

The observation and analysis of the internal solitary waves by mooring system in the Andaman Sea

CUI Zijian^1,2, LIANG Chujin^1,2,3, LIN Feilong^*1,2, JIN Weifang^1,2, DING Tao^1,2, WANG Juan^1,2

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Abstract

The Andaman Sea is highly valued because of its large number of internal solitary waves. Most of its research is based on remote sensing but lacks field observation. A mooring system located in the central Andaman Sea from 2016 to 2017 to investigate internal solitary waves, and the body forcing theory, as well as three internal solitary wave theories: shallow water Kortweg-de Vries (KdV), deep water and finite-depth theory have been used to explore the sources of the internal solitary waves. The result shows that the internal solitary waves in the study area mainly propagate to the northeast, and the maximum amplitude of them is above 100 m. the sources calculated by body forcing theory are consistent with the previous remote sensing results, however, it could provide a ability estimation of different sources to excite internal solitary waves. The phase velocity of internal solitary waves shows that the central Andaman Sea may have a Lee waves generation mechanism, and the finite-depth theory is proved to correspond to the observation result in the Andaman Sea.

Key words

the Andaman Sea / internal solitary wave / mooring system

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CUI Zijian, LIANG Chujin, LIN Feilong, JIN Weifang, DING Tao, WANG Juan. The observation and analysis of the internal solitary waves by mooring system in the Andaman Sea[J]. Journal of Marine Sciences. 2020, 38(4): 16-25 https://doi.org/10.3969/j.issn.1001-909X.2020.04.002

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