| 摘要: |
| 为提高对南海波浪场的认识, 采用基于多卫星融合的2009年9月～2011年11月的AVISO(Archiving, Validation and Interpretation of Satellite Oceanographic data)有效浪高格点数据对南海浪高的月变化特征进行分析, 并结合南海的波浪特征和地形特点, 将南海划分为6个海区, 讨论南海浪高的空间分布规律。研究发现南海浪高具有以下2个特征: (1)南海浪高表现为由东向西、由北往南递减: 北部深水区>北部陆架区>南海中部≈北部湾>南部陆架区>泰国湾。(2)浪高的月变化与季风的变化密不可分: 10月～次年3月(冬季风影响期间)>4月和9月(季风转换期)>5月～8月(夏季风影响期间), 1月最大, 5月最小。该研究成果对开展南海海浪的中长期预报、保障南海资源开发和军事安全等有一定的借鉴意义和参考价值。 |
| 关键词: 南海 月平均波高 月变化 空间变化 |
| DOI： |
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| 基金项目:海洋公益性行业科研专项(201105002-13) |
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| Temporal and spatial distribution characteristics of wave height in the South China Sea based on multi-satellite merged data |
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| Abstract: |
| The monthly variation of significant wave height in the South China Sea was analyzed based on the multi-satellite merged data of AVISO from November 2009 to November 2011. The South China Sea was divided into six subdomains based on the wave characteristics and topography. The spatial distribution of the wave height was analyzed and we found that firstly, the wave height (H) decreased from east to west, and from north to south, and the descending order of the wave height in different subdomains was H (the northern deepwater area) > H (the northern continental shelf) > H (the central South China Sea) ≈ H (Beibu Gulf) > H (southern continental shelf > H (the Gulf of Thailand); secondly, the monthly variation of WAVE HEIGHT was highly associated with the monsoon, with the biggest one occurred in January and the smallest one occurred in May. The descending order of the WAVE in different periods of the monsoon was H (winter monsoon) > H (summer monsoon) > H (the monsoon transition period). |
| Key words: the South China Sea monthly mean significant wave height monthly variation spatial distribution |
