永暑海区波浪要素变化特征分析

利用永暑礁测站1988-2009年共22a的波浪实测资料,对永暑海区的波浪要素的基本特征、变化规律、风与浪的相关规律进行分析研究,阐明了海区海浪的特点及其年变化规律。该区是热带季风气候区,海区的波浪主要受季风影响,季风时期的风向、风浪传播方向、涌浪传播方向基本一致。波高以轻浪和中浪为主,小波分析表明波高在6-9月具有3-6年的变化周期。提供了较详实的海浪资料及变化规律。

Analysis of the wave characteristics at Yongshu Reef

In this paper, the measured wave data of 22 years (from 1988 to 2009) from the Yongshu Reef observing station are used to analyze the basic characteristics and variation of wave, and the correlation between wind and wave in the Yongshu sea area. The wave characteristics and annual variation in the Yongshu sea area are clarified. This area is the tropical monsoon climate, and the wave is mainly affected by monsoon. The wind direction, wind wave propagation direction and swell propagation direction are consistent in the monsoon period. Wave height scale is mainly from slight to moderate. The wavelet analysis has shown that the wave height has significant period of 3-6 years from June to September. This text provides the richer data and the variation features of wave.