海南岛东南近岸海浪观测及统计特征

发布时间：2018-06-01 05:32

本文选题：海南岛 + 海浪观测　；参考：《海洋科学进展》2016年01期

【摘要】：根据2012-2013年海南岛东南近岸整年海浪观测资料,初步分析了观测海域的海浪季节变化和统计特征。观测结果表明,观测海域年平均有效波高为1.28m,常浪向为东向(E),平均跨零周期为5.1s。观测海域波浪存在显著季节变化特征,主要表现为冬季型和夏季型两种波浪类型。对比观测期间影响观测海域的台风,发现从观测海域南部经过的台风"山神"对观测海域的影响远大于从北部经过的台风"启德"。台风"山神"使观测海域的波高和周期同步迅速升高到最大值5.77m和7.8s,但波向滞后约12h从东向(E)转为偏南向(SSE)。受该台风影响,各频率和各方向上的能量都迅速增加,谱峰值由高频向低频转换,方向谱由单峰结构向双峰结构转换,即台风导致了观测海域一支偏南向(SSE)浪的出现。
[Abstract]:Based on the sea wave observation data of the southeast coast of Hainan Island in 2012-2013, the seasonal variation and statistical characteristics of the observed sea waves are preliminarily analyzed. The results show that the average annual effective wave height is 1.28 m, the normal wave direction is eastward and the average span zero period is 5.1 s. The observed sea waves show significant seasonal variations, mainly in winter and summer. By comparing the typhoon which affects the observed sea area during the observation period, it is found that the influence of Typhoon "Shanshen" passing through the southern part of the observed sea area on the observed sea area is much greater than that of Typhoon "Qide" from the north. Typhoon "Shanshen" rapidly increased the wave height and period to the maximum values of 5.77 m and 7.8 s, but the wave direction was delayed by about 12 hours from east to south. Under the influence of the typhoon, the energy in each frequency and direction increases rapidly, the peak value of the spectrum changes from high frequency to low frequency, and the directional spectrum changes from single peak structure to double peak structure, that is, the typhoon results in the appearance of a southward SSE) wave in the observed sea area.
【作者单位】：国家海洋局第一海洋研究所;华能新能源股份有限公司;国家海洋局第二海洋研究所;
【基金】：国家海洋可再生能源专项资金项目——华能海南波浪能并网发电示范项目(GHME2010GC04) 国家高技术研究发展计划项目——南海及周边海域风浪流耦合同化精细化数值预报与信息服务系统(2013AA09A506)
【分类号】：P714.1

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