珠江口波浪要素特征分析

doi:10.11978/2016099

Abstract

Abstract:

Based on the one year wave data collected continually at the station of the Pearl River Estuary, statistical analysis of wave characteristics was conducted. The results show that the frequency of the wave height that was below 0.5 m was 76%. The month-to-month variation was quite notable. The bigger waves occurred mainly in summer and winter, which were closely related to tropical cyclones and cold air. The direction of higher frequency waves was SE, and the frequency reached 29%. The direction of strong wave was SSE, which was generally caused by tropical cyclones. During Typhoon Vicente, the wave height increased rapidly, with the maximum wave height reaching 3.93 m. The pattern of typhoon wave was in accordance with the general evolution of typhoon wave type.

Key words: Pearl River Estuary, Waverider, Wave parameters, Typhoon wave

CLC Number:

P731.22

Yi YIN, Lifang JIANG, Zhixu ZHANG, Hongbing YU, Hailong WANG. Statistical analysis of wave characteristics in the Pearl River Estuary[J].Journal of Tropical Oceanography, 2017, 36(4): 60-66.

Figures/Tables 10

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海浪要素	6月	7月	8月	9月	10月	11月	12月	1月	2月	3月	4月	5月	年平均
平均有效波高/m	0.48	0.39	0.37	0.35	0.47	0.45	0.55	0.45	0.41	0.36	0.37	0.32	0.41
平均有效波周期/s	4.8	4.3	5.0	4.1	4.8	4.2	4.8	4.4	4.7	4.2	4.0	4.3	4.5
最大波高/m	2.04	3.93	3.21	1.61	1.92	2.29	3.04	1.86	2.06	1.95	1.92	1.57	2.28
对应波周期/s	10.0	4.6	8.7	11.9	3.3	3.8	4.1	3.6	3.5	3.6	3.6	3.6	5.4

月份	最大波高/m	对应周期/s	热带气旋	级别	气旋中心与观测点最近距离/km	靠近测点日期	台风中心附近最大风速/(m·s^-1)
2012-07	3.93	4.6	韦森特(Vicente)	强台风	90	23日23时	40
2012-08	3.21	8.7	启德(Kai-Tak)	台风	300	16日22时	33

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Statistical analysis of wave characteristics in the Pearl River Estuary

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