MODIS热红外温度数据反演的算法实现及其与地温数据的相关性分析  

Arithmetic Implementation of Assimilation of MODIS Thermal Infrared Temperature Data and Its Correlation Analysis with Geotemperature

作　　者：路茜[1] 张铁宝[1] LU Qian;ZHANG Tiebao(Sichuan Earthquake Agency, Chengdu 610041, China)

机构地区：[1]四川省地震局,成都610041

出　　处：《华南地震》2017年第4期1-8,共8页South China Journal of Seismology

基　　金：四川省地震局地震科技专项(LY1610)资助

摘　　要：利用分裂窗法实现对MODIS遥感卫星热红外温度的反演。该方法计算简单,易于实现海量资料处理,基本满足红外遥感资料在地震监测预报中的应用要求。经过不同时间频度、不同空间范围的计算,将反演结果与气象台站地表温度进行了时序的相关性分析,结果显示反演温度与日值地温的相关性可达0.7,其与月值地温的相关性高达0.9,以证实了MODIS数据反演温度的可用性。This paper uses the split window method realizing assimilation of MODIS thermal infrared temperature. The method is simple to calculate, and easy to achieve massive data process, which meets application requirements of earthquake monitoring and prediction according to infrared remote sensing. After calculation for different time frequency and spatial range, according to correlation analysis for time series of assimilation temperature and geotemperature in meteorological station, the results show that the correlation between the inversion temperature and the daily geothermal temperature can reach 0.7, and it＇s up to 0.9 of assimilation temperature and monthly mean geotemperature,this can certify availability of MODIS assimilation temperature.

关 键 词：MODIS 分裂窗 温度反演 地表温度 相关性 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]