利用微波成像仪资料反演台风Aere(2004)降水水平结构

王晓丹; 钟中

利用微波成像仪资料反演台风Aere(2004)降水水平结构

王晓丹,
钟中

解放军理工大学气象学院, 江苏, 南京, 211101

基金项目: 解放军理工大学预先研究基金项目;国家自然科学基金项目(40333026,40333025)

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出版历程
- 收稿日期: 2005-09-14
- 修回日期: 2006-05-11

HORIZONTAL PRECIPITATION STRUCTURE OF TYPHOON AERE(2004) RETRIEVED FROM TRMM/TMI

Institute of Meteorology, PLA University of Science and Technology, Nanjing 211101, China

摘要

摘要: 利用热带降雨测量卫星(TRMM)的微波成像仪(TMI)和星载测雨雷达(PR)资料,从台风Aere(2004)接近台湾岛的观测资料中选取3个时次的数据,采用4种不同方法进行TMI反演降水试验。结果表明,常用的仅用高频通道反演降水方法的效果并不理想,多通道直接组合法的反演结果虽然稳定性很好,但始终无法达到最佳,多通道直接对数组合法的反演结果虽然有时较好,但反演结果不稳定,而多通道间接对数组合法既可以较好地表征弱降水区的范围和强度分布,又能描绘强降水区的位置,且反演效果稳定,是由微波亮温资料反演洋面降水的一种较为理想的方法。结果对于利用我国自行发射的气象卫星遥感资料反演降水具有一定的参考价值。
- TRMM /
- 微波成像仪 /
- 降水雷达 /
- 反演 /
- 台风
Abstract: In this paper,the microwave brightness temperature(MBT) data from TRMM/TMI and the precipitation rate from TRMM/PR were used in the precipitation retrieval of typhoon Aere(2004),for three periods during it approaches Taiwan island.Four schemes were conducted in the precipitation retrieval,respectively.The results show that the scheme only with high-frequency MBT,which is normal in precipitation retrieval,is not so well.The “direct composite method” can not be good for all three periods,though it is stable for the precipitation retrieval.The “direct logarithmic composite method” can be good for sometimes,but it is unstable,whereas the “indirect logarithmic composite method” is not only perfect in the description of the scope and intensity for the weak precipitation,but also with the obvious superiority for the heavy rainfall and it is a stable scheme.Therefore,the “indirect logarithmic composite method” is excellence in the precipitation retrieval over ocean with TRMM/TMI,and it is worthy for the precipitation retrieval with the MBT data obtained from the meteorological satellite launched by our country.
- TRMM /
- TRMM microwave imager /
- Precipitation Radar /
- precipitation retrieval /
- typhoon

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参考文献(16)

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