Temperature Inversion Of Remote Sensing Data Zone And Investigation Of Geothermal Anomaly In Yangbajing Region Of Tibet

As the economical rapid development, the traditional energy like coal, petroleum and so on is in short at global scale. As one kind of inexpensive,clean green new energy, terrestrial heat resource has been paid greatattention day by day by the people. So full exploitation of terrestrial heat resource plays a Important role to adjust energy supply structure and alleviate the energy supply pressure. Because of its fast, economical, big area research to the heat resources and the hot field distribution change, thermal infrared inversion of remote sensing has become the Terrestrial heat resource survey and the investigation aspect one kind of new tendency day by day.This article selects the Yangbajing Region of Tibet as the research area to apply thermal infrared inversion of remote sensing technique survey heat resource. As follows:(1) Collect the information of land surface temperature, then determine inversion algorithm of research area and atmospheric transmission ratio and mean temperature by using vapor content of weather station and near ground temperature;(2) Carry on atmospheric correction of images of study area, acquire LSE through the method of NDVI, input the estimate atmospheric transmission, mean temperature and surface ratio radiance to the decided inverse ground temperature and analyze the results.(3) According to the characteristics of Landsat 5 TM images and image feature, select TM image data of the most favorabl Study,Then,through remote sensing images of the best band combinations, geometric correction, image enhancement, such as pre-processing , Extraction of this study the most favorable geological information.(4) Interpretation of a combination of an active fault zone characteristics and surface temperature anomaly map of the study area to determine the main structural control of geothermal.(5) Study area, mainly through structural and thermal analysis of surface temperature anomalies, the background of regional geothermal identified anomaly geothermal focus areas.The research shows that geothermal anomaly of Yangbajain region and active faults were mainly concentrated in North East to the north west and the corresponding cross-composite parts of active faults, geothermal anomalies in the control by the active faults. Also shows that the single-window algorithm as a method of thermal infrared inversion of remote sensing is an effective surface temperature inversion. Thermal image data of its obtained has visual, image, speed, free from traffic conditions, and many other advantages, in particular, no man's land on the plateau geothermal anomaly detection, has an important significance .