基于散射计风场数据的台风强度诊断方法——以海洋二号卫星数据为例

杨典; 宋清涛; 蒋兴伟; 刘宇昕; 刘圆

doi:10.3969/j.issn.0253-4193.2019.01.015

基于散射计风场数据的台风强度诊断方法——以海洋二号卫星数据为例

doi: 10.3969/j.issn.0253-4193.2019.01.015

国家卫星海洋应用中心, 北京 100081;国家海洋局空间海洋遥感与应用研究重点实验室, 北京 100081

基金项目: 国家重点研发计划（2018YFC0213104）；国家自然科学基金面上项目（41276019）。

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出版历程
- 收稿日期: 2017-11-11
- 修回日期: 2018-04-24

A typhoon intensity estimation technique based on scatterometer winds observed from the HY-2 satellite

National Satellite Ocean Applications Service, Beijing 100081, China;Key Laboratory of Space Ocean Remote Sensing and Application, State Oceanic Administrution, Beijing 100081, China

摘要

摘要: 本文提出了一种基于散射计风场数据的台风定强方法。该方法定义了台风所在海区的一个圆形区域上的风速平均值来对台风进行定强，并使用海洋二号卫星散射计历史数据对该方法进行了验证。验证结果表明，该台风定强方法可以克服散射计反演台风风速过低的问题。与台风强度监测的历史记录比较的结果显示，在台风强度低于"强台风"这一强度等级时，该方法能够有效估算台风强度。
- 台风 /
- 强度估计 /
- 海洋二号卫星 /
- 微波散射计 /
- 台风监测
Abstract: A typhoon intensity estimation technique based on scatterometer wind data is proposed in this study. The mean of sea surface wind speed computed in a circular area of the typhoon, is used to determine the typhoon intensity. This technique is verified by typhoon cases from the HY-2 satellite scatterometer data. The verification results indicate that the method proposed in this study can overcome the problems with underestimated wind speed retrieved from typical scatterometers. And the method is proved to be effective for determining typhoon intensity for cases under severe typhoon category, as compared with historical typhoon records.
- typhoon /
- intensity estimation /
- HY-2 satellite /
- microwave scatterometer /
- typhoon monitoring

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参考文献(19)

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