Landsat ETM+遥感数据在寻找临沂地热中的应用

Application of Landsat ETM+ Remote Sensing Data in Searching Geothermal Field in Linyi City

摘要:

沂沭断裂带内蕴藏着丰富的地热资源，以landsat ETM+为主要遥感数据，利用辐射传输方程反演出整个临沂地区地表温度，对灰色温度图像进行交互式拉伸突显出33℃及以上温度异常区，结合ETM+真彩色图像以及Google影像，排除城镇建筑、农村居民点、河岸滩、裸露岩体等异常区域，将所得异常结果与地热地质背景图进行叠加比对，并从区域地质角度对其进行分析，以期找到地热潜伏区。

Abstract:

Yishu fault zone is rich in geothermal resources. By using Landsat ETM+ as the main remote sensing data, and inversing the whole surface temperature in Linyi city by using radiative transfer equation. Gray temperature images have been interactively stretched in order to show temperature abnormal areas in 33℃ and the above temperature. Combining with ETM+ true color images and Google images, excluding town, rural residential buildings, river beach, bare rock and other abnormal areas, the already gained abnormal results have been compared with geothermal geologic background images, and analyze it from the angle of regional geology in order to find potential geothermal regions.