期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2009
卷号：XXXVIII-8/W3
页码：227
出版社：Copernicus Publications
摘要：In the present study, an attempt has been made to analyze the rainfall during the onset and progress phase of the Indian summer monsoon of 2009 starting from the onset period to August using IMSRA technique developed in-house. Contrary to IR, microwave rain rates are based on measurements that sense precipitation in clouds and do not rely on cloud top temperature. IMSRA technique is the combination of the IR and microwave measurements. Geostationary satellites provide broad coverage and frequent refresh measurements but microwave measurements are accurate and sparse. The assessment of rainfall estimate has been carried out by intercomparison with TRMM-3B42 and validation using the ground based data. These studies are taken up to enhance the capability of rainfall retrievals in near future from both INSAT-3D and Megha-Tropiques, IR and MW imagers respectively
关键词：Rainfall; Monsoon; Microwave; Infrared; Automatic Weather Station
