Study of the propagation direction of the internal waves in the South China Sea using satellite images |
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| Authors: | WANG Juan HUANG Weigen YANG Jingsong ZHANG Huaguo and ZHENG Gang |
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| Institution: | 1.College of Information Science and Engineering, Ocean University of China, Qingdao 266100, China;State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China2.State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China |
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| Abstract: | Internal wave propagation carries considerable vertical shear which can lead to turbulence and mixing. Based on the analysis ofmore than 2 500 synthetic aperture radar (SAR) and optical satellite images, the internal wave propagation in the whole South China Sea was investigated systematically. The results show that (1) in the northeastern South China Sea, most internal waves propagate westward from the Luzon Strait and are diffracted by coral reefs near the Dongsha Islands. Some impinge onto the shelf and a few are reflected; (2) in the northwestern South China Sea, most internal waves are generated at the shelf and propagate northwestward or westward to the coast; (3) in the western South China Sea,most internalwaves propagate westward to the Vietnamese coast, except a few propagate southward to the deep sea; and (4) in the southern South China Sea, most internal waves propagate southwestward to the coast. Some propagate southeastward to the coast of Kalimantan Island, and a few propagate southeastward because of the influence of theMekong River. |
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| Keywords: | remote sensing internal wave propagation South China Sea satellite images |
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