基于高频地波雷达观测的粤西近海潮流潮能分析

doi:10.11978/2017124

Abstract

Abstract:

We study the characteristics of tidal current on the west coast of Guangdong Province using the surface current data observed by a High Frequency Ground Wave Radar (HF radar). Tidal harmonic analysis results show that the tide in this area mostly belongs to irregular semidiurnal tide, and the shallow water components are not negligible. The M₂ tidal current is mainly counterclockwise reciprocating flow. The direction is along the northwest-southeast. In the near-shore region, tidal energy flux spreads to the shore. The tidal energy flux is from east to west in the east part of the study area. Through tidal energy budget analysis, we found that high dissipation appears in the west part of the study area, which has a lot of islands there is related to the existence of the Qiongzhou Strait and the topography on the west coast of Guangdong Province.

Key words: west coast of Guangdong Province, High Frequency Ground Wave Radar, tidal current, tidal energy, tidal dissipation

CLC Number:

P731.23

Huaixin ZHU, Tingting ZU, Jian LI, Yeqiang SHU, Ju CHEN, Dongxiao WANG. Analysis of tidal current and tidal energy on the west coast of Guangdong Province based on High Frequency Ground Wave Radar observation[J].Journal of Tropical Oceanography, 2018, 37(5): 25-32.

Figures/Tables 7

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References 24

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观测仪器	O₁		K₁		M₂		S₂		M₄		MS₄		特征值 F	特征值G
观测仪器	长轴/(m·s^-1)	迟角/(°)	长轴/(m·s^-1)	迟角/(°)	长轴/(m·s^-1)	迟角/(°)	长轴/(m·s^-1)	迟角/(°)	长轴/(m·s^-1)	迟角/(°)	长轴/(m·s^-1)	迟角/(°)	特征值 F	特征值G
ADCP	0.129	232	0.104	252	0.219	232	0.077	282	0.024	216	0.013	269	1.06	0.17
雷达(6月)	0.116	207	0.061	224	0.191	234	0.063	280	0.012	193	0.016	209	0.93	0.15
雷达(11月)	0.102	220	0.094	250	0.129	229	0.065	64	0.015	150	0.014	119	1.52	0.22

Analysis of tidal current and tidal energy on the west coast of Guangdong Province based on High Frequency Ground Wave Radar observation

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