基于遥感技术的长白山火山区地热预测研究

在长白山火山区地热调查研究中,基于ASTER遥感数据,运用比辐射率归一化方法,定量反演了区域地表温度,并在此基础上,通过对地质构造的遥感解译,结合对水热活动及深源气体释放特征等资料的关联分析,预测长白山火山区地热资源存在的有利区.研究发现,六道沟-长白山天池-甑峰山北东向断裂的天池段和长白山火山环形断裂的长白聚龙段是地热勘探的有利区,也是火山监测的最佳场所.

GEOTHERMAL RESOURCE PROGNOSIS BASED ON REMOTE SENSING TECHNOLOGY IN CHANGBAISHAN VOLCANIC AREA

As an important ecotype resource, With the temperature field of land surface as successful experience in geothermal resource geothermal the object, survey. In resource is extremely useful and has good market potential. thermal infrared remote sensing has accumulated abundant previous geothermal resource survey, land surface temperature was frequently replaced by thermal infrared spectral radiance or brightness temperature to interpret the geothermal abnormal area. This replacement, however, is unreasonable in fact. This paper has forecasted favorable geothermalareas by retrieving land surface temperature with the temperature and emissivity separation algorithm and interpreting geological structure based on ASTER data as well as analyzing hot water activity and deep gas characteristics of the earth in Changbaishan volcanic area. The results show that the Tianchi section of Liudaogou-- ChangbaishanTianchi--Zengfenshan fault and the Changbai--Julong section of Changbaishan volcanic ring fault make up favorable areas for geothermal resource exploration and volcanic monitoring.