中国 1996 年 7 月南方暴雨水灾星载微波 SSM/I 遥感数据分析  

Monitoring Heavy Rains and Floods of July 1996 in South China by Using SSM/I Data

作　　者：金亚秋[1] 

机构地区：[1]复旦大学波散射和遥感中心

出　　处：《水科学进展》1998年第1期47-51,共5页Advances in Water Science

基　　金：国家自然科学基金;上海科技研究与发展基金;中国科学院长春净月潭遥感开放实验室基金

摘　　要：以１９９６年７月我国南方暴雨水灾为例，研究了暴雨水灾时星载微波ＳＳＭ／Ｉ的遥感数据，分析了ＳＳＭ／Ｉ７个通道辐射亮度温度的极化散射和辐射特征，定义了识别降雨的散射指数ＳＩ，水灾警戒指数ＦＩ，和辐射极化指数ＰＩ。用ＳＳＭ／Ｉ的观察数据，讨论了暴雨水灾时这些指数的时间和空间的特征性变化，给出了ＳＳＭ／Ｉ数据对于１９９６年７月暴雨和水灾的识别，以及全月降雨异常值的空间分布。The remote sensing data of DMSP SSM/I over south China during heavy rains and flooding of July 1996 are analyzed.Some new brightness temperature indices,such as the scattering index SI for rain detection,flood alarming index FI,and polarization index PI for surface wetness,are defined,and the thermal emissions at SSM/I seven channels during July observations are studied.By using SSM/I data,temporal and spatial variation of these indices are presented. The detection of heavy rains and floods,and the anomalous distribution of precipitation are discussed.

关 键 词：星载微波遥感 数据分析 暴雨水灾 中国 

分 类 号：TV122.1[水利工程—水文学及水资源] TP407.8[自动化与计算机技术]