FY-1D资料在云南辐射雾监测中的运用  

APPLICATION OF FY-1D SATELLITE DATA TO MONITORING RADIATION FOG IN YUNNAN

作　　者：金燕[1,2] 徐虹[2] 戴丛蕊[2] 

机构地区：[1]云南大学大气科学系,云南昆明650091 [2]云南省气候中心,云南昆明650034

出　　处：《云南地理环境研究》2009年第5期69-72,F0004,共5页Yunnan Geographic Environment Research

基　　金：云南省气象局青年基金"气象卫星遥感雾监测业务研究"课题资助

摘　　要：简要介绍了FY-1D卫星资料的特点。运用典型的FY-1D卫星数据,对不同目标物(地表、水体、云、雾、雪盖)分别进行采样,并进行可见光、红外波段的辐射特性差异分析,发现了有利于雾与背景分离的波段,同时指出在红外波段和中红外波段的辐射差值对于分离云雾有很好的指示作用。根据上述辐射特性分析制定了相应的监测方法,通过实际观测资料的检验后发现,该检测算法适用于云南辐射雾的实时监测。The characteristics of FY-1D meteorological satellite are briefly introduced. Based on spectral profiles sampling from representative FY-1D data, the spectral characteristics of ground, water, cloud, snow and fog in VIS and IR are analyzed; Channels suitable for fog detection are discovered, and the difference in the IR and mid-infrared band has great visible in fog detection. On the basis of this, the fog-monitoring method is given, and the radiation fog occurred at 08 ： 32 on Nov, 9,2006 in south of Yunnan Province is detected by the multi-spectral synthesis method. The result shows that the method is very useful in real time radiation fog detection in Yun-nan.

关 键 词：FY-1D卫星 遥感监测 云南 辐射雾 

分 类 号：X87[环境科学与工程—环境工程] P426.4[天文地球—大气科学及气象学]