印度尼西亚海内潮生成及传播过程研究*

doi:10.11978/2017059

Abstract

Abstract:

The generation and propagation of internal tides in the Indonesian Seas are investigated by using a three-dimensional ocean model of MITgcm. We find that diurnal tides prevail in the Sulawesi Sea and in the northwestern Pacific, whereas semi-diurnal tides are dominant in the Makassar Strait, Ombai Strait, Timor Sea, and northeastern Indian Ocean. The normalized amplitude of internal tides maximizes near the thermocline in the Sulawesi Sea, Makassar Strait, Ombai Strait, Maluku Sea, Banda Sea, northeastern Indian Ocean, and northwestern Pacific with values of about 20~40 m, whereas it maximizes near the depth of 200 m in the Timor Sea with a value of about 25~30 m. The Sangihe Sill, Seram Sea, Ombai Strait, and Timor Sea are the four major sites of internal tide generation, where the depth-integrated baroclinic energy flux reaches 40 kW·m^-1. The internal tide energy in the Sulu Sea is mainly generated from the conversion of local barotropic tides, whereas that in the Sulawesi Sea and Banda Sea is from remotely generated internal tides.

Key words: Indonesian Seas, barotropic tide, internal tide, energy flux

Yi LIU, Xiaowei WANG, Shiqiu PENG. On the generation and propagation of internal tides in the Indonesian Seas[J].Journal of Tropical Oceanography, 2018, 37(2): 1-9.

Figures/Tables 8

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References 30

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站点	经度	纬度	所属海区
1	128°E	6°S	班达海
2	115°E	12°S	东北印度洋
3	125°36′E	6°S	翁拜海峡
4	118°E	3°42′S	望加锡海峡
5	126°E	2°N	马鲁古海
6	125°24′E	9°30′S	帝汶海
7	121°E	3°N	苏拉威西海
8	14°E	10°N	西北太平洋

On the generation and propagation of internal tides in the Indonesian Seas

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