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能源的全球性短缺以及全球环境问题的日益加剧,使得绿色新能源的研究与开发成为当今世界许多国家的一项重要任务。地热资源作为其中一员其重要性日益凸显。在地热资源的勘查中,传统的地质和地球物理勘探投入高、难度大,而遥感技术具有经济、高效、覆盖范围广等优势,已逐渐成为地热资源探测与调查的一种新技术手段。地热能开发的首选地区往往是新生代火山活动区,因其在相对较小的深度内就能获得很高的温度。本文综述了国内外利用遥感技术探测火山地热的发展历史和研究现状,介绍了这项技术在美国黄石公园、日本阿苏火山以及我国长白山火山和腾冲火山的应用。同时选取内蒙古锡林郭勒盟新生代火山活动构造区作为实例,利用美国NAsA陆地卫星Landsat-7 ETM+第6波段的红外遥感数据反演了研究区的地表温度,结合ETM+7-4-1波段组合影像的地质构造解译结果以及其它相关资料对研究区地表温度分布进行了分析。结果表明,区内红外遥感地表温度异常区多位于北东东与北西向构造的交汇处或与环形构造密切相关。本文圈定了7个地表温度异常区作为这一地区下一步地热资源勘查的远景区。
The global shortage of energy and the increasing global environmental problems have made R & D of green and new energy an important task in many countries of the world today. Geothermal resources as one of its increasingly prominent importance. In the exploration of geothermal resources, the traditional geological and geophysical exploration is expensive and difficult, while the remote sensing technology has the advantages of economy, high efficiency and wide coverage and has gradually become a new technical means of geothermal resource exploration and investigation. The preferred area for geothermal energy development is often the Cenozoic volcanic activity area because of its ability to reach very high temperatures at relatively small depths. This paper reviews the history and status quo of using remote sensing technology to detect volcanic geothermal at home and abroad, and introduces the application of this technology in Yellow Stone Park in the United States, Aso volcanoes in Japan and the Changbai Mountain volcano and Tengchong volcano in China. At the same time, taking the Cenozoic volcanic tectonic tectonic zone of Xilin Gol League in Inner Mongolia as an example, the surface temperature of the study area was retrieved by infrared remote sensing data of Landsat-7 ETM + band 6 in the United States. Combined with the combination of ETM + 7-4-1 band image The interpretation of the geological structure and other relevant information on the study area surface temperature distribution were analyzed. The results show that the surface temperature anomalies of infrared remote sensing in the area are mostly located at the intersection of the NE and NW structures or closely related to the ring structure. This article delineated seven anomalous surface temperature an area as the next step in this area of geothermal resources prospecting area.