TRMM卫星微波成像仪分级产品及其反演降水算法

Introduction to TRMM TMI Products and Retrieval Algorithm

文章叙述了获取定量降水信息的意义 ,简要介绍了对热带测雨卫星TRMM (TropicalRainfallMeasurementMission)的仪器、美国国家宇航局提供的微波成像仪TMI(TRMMMicrowaveImager)分级产品。对比了物理方法和经验方法反演降水的特点 ,并对一些经验方法以及倾斜对流系统对反演降水的影响、动态聚类分析、神经网络反演方法的研究成果进行了介绍。

The meaning of quantitative precipitation is discussed. The instruments aboard Tropical Rainfall Measurement Mission (TRMM) and the products of the TRMM Microwave Imager from National Aeronautics and Space Administration are described. The principles of microwave precipitation retrieval, the comparison of physical methods and empirical methods are narrated, and some empirical algorithms are introduced and discussions are made on the effect of the tilted convective system on upwelling microwave brightness temperature, the clustering analysis algorithms and the neural network algorithms.