Land Surface Temperature Retrieval of the Geothermal Area in Eastern Liaoning, China, Based on Thermal Infrared Remotely
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RESEARCH ARTICLE
Land Surface Temperature Retrieval of the Geothermal Area in Eastern Liaoning, China, Based on Thermal Infrared Remotely Sensed Data of MODIS Jinxin He1 • Bofu Zheng1 • Wenqing Li1 • Linmao Yang1 • Huanzhao Sun1 Received: 25 July 2017 / Accepted: 13 March 2018 Ó Indian Society of Remote Sensing 2018
Abstract With the depletion of fossil fuel energy, geothermal resource exploration has become an important research hotspot around the world. Thermal infrared remote sensing technology is a new trend in the field of geothermal resources investigation and exploration, with the advantages of quick, economical study of large areas that have variations in geothermal resources and heat distribution. Based on the MODIS thermal infrared remotely sensed data, the split-window algorithm was used to retrieve the surface temperature of the geothermal region in Eastern Liaoning, China. The temperature inversion images at four seasons during the year of 2016 were selected, and the high temperature zones in the inversion results were compared with the geothermal features and fault structures in the study area. It was found that the spatial distribution relationships were highly similar. In conclusion, the distribution of geothermal resources can be inferred by analyzing the inversion results of regional temperatures and geological structures. Keywords Geothermal characteristics Land surface temperature Thermal infrared remote sensing MODIS Split-window algorithm
Introduction As society continues to develop, traditional energy resources such as coal and petroleum are becoming increasingly depleted at the global scale. As an inexpensive, clean and green new energy, geothermal resources have continued to draw interest around the world. Geothermal resources play an important role in adjusting the structure of energy supply, alleviating the pressure upon energy supply and ensuring the security of energy supply, all of which have broad application prospects. Therefore, it is of great importance to develop and utilize geothermal resources. Currently, there has been no substantial improvement in the exploration methods and interpretation means of geothermal resources. Traditional exploration methods are not enough to meet current
& Jinxin He [email protected] 1
College of Earth Sciences, Jilin University, Changchun 130061, China
exploration demands. Thus, improving the efficiency of geothermal resources exploration is an urgent problem to be solved. The modern electromagnetic physical prospecting method can effectively carry out geothermal exploration; however, the process is complex, the cost is high, and the exploration area is small (Wu 2016). Recently, thermal infrared remote sensing technology has become a growing trend in the field of geothermal resources investigation and exploration with the advantages of quick, economical and multiscale study of areas that have variations in geothermal resources and heat distribution. Aerospace thermal infrared remote sensing has high spatial resolution, which is benefici
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