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利用TOPEX卫星高度计资料分析台湾周边海域巨浪和大风特征
The analysis of the characterstic of the wind and wave fields over
投稿时间:2009-04-04??修订日期:2009-05-13
DOI:
中文关键词:??台湾周边海域 有效波高 巨浪 时空分布特征
英文关键词:Waters Surrounding Taiwan, Significant Wave, Probability Density Distribution, Large Wave
基金项目:国家863课题2006AA09Z138,国防科工委预先研究项目:HY-2卫星应用预先研究
作者单位E-mail
林明森?国家海洋卫星中心?mslin@mail.nsoas.gov.cn?
谢辛?国家海洋局第三海洋研究所??
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中文摘要:
??????卫星高度计实现了对全球性或区域想的海洋参量的实时监测,TOPEX卫星高度计提供了迄今为止时间序列最长、数据质量最高的全球海面风速和有效波高的同步观测资料。本文利用TOPEX卫星高度计资料,分析了有效波高4m以上的巨浪在台湾周边海域的时空分布特征,结果表明台湾周边海域巨浪的分布具有明显的季节特征。每年平均有效波高最大值大多数出现在夏季,而春季则是一年中有效波高最小的季节;而秋季和冬季则是巨浪出现频率最高的季节。波高大于6m的巨浪大都出现在台湾东部及东北部海域,在南部海域分布较少。
英文摘要:
??????The satellite altimeter provides an efficient way for real time monitoring global and regional oceanographic parameters. TOPEX satellite altimeter had provided synchronously observing data of global sea surface wind speed and significant wave speed(SWH). so far, this data are the longest time series and the best data quality. T he data of the significant wave height and the wind speed over the Waters Surrounding Taiwan are compared with the data from TOPEX satellite altimeter and analyzed the validity from TOPEX satellite altimeter data. Meanwhile, the characteristic of the SWH which is more than or equal to 4 meters over the Waters Surrounding Taiwan is analyzed .It was shown, every year, that the large waves commonly appear in winter and autumn. And that maximum of mean SWH often appears in summer, but it is opposite in spring. When the SWH is more than or equal to six meters, it is more than appears in the Waters Surrounding the Eastern or Northeastern of Taiwan, and it is less appearance in the Waters Surrounding the Southern of Taiwan ,in Taiwan Strait, it is not any monitoring.
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