Identification of geothermal potential based on land surface temperature derived from remotely sensed data

With the continuous development of thermal infrared remote sensing technology and the maturation of remote sensing inversion algorithms based on surface temperatures, identifying high-temperature anomalous areas by inverting surface temperatures has become an crucial approach to finding geothermal p...

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Veröffentlicht in:Environmental science and pollution research international Jg. 30; H. 47; S. 104726 - 104741
Hauptverfasser: Liu, Jianyu, Chao, Jiangqin, Zhao, Zhifang, Zhao, Fei, Xu, Shiguang, Lai, Zhibin, Yang, Haiying, Chen, Qi, Tu, Youle
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Berlin/Heidelberg Springer Berlin Heidelberg 01.10.2023
Springer Nature B.V
Schlagworte:
Algorithms
Aquatic Pollution
Atmospheric Protection/Air Quality Control/Air Pollution
China
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Geothermal anomalies
Geothermal power
Geothermal resources
High temperature
Hot springs
Information retrieval
Land surface temperature
Landsat
Remote sensing
Remote Sensing Technology
Research Article
Satellite Imagery
Spectroradiometers
surface temperature
Temperature
temperature inversion
Temperature inversions
Waste Water Technology
Water Management
Water Pollution Control
China
Longyang East Region
Geothermal resource forecast
Surface temperature inversion
Multi-view extraction of thermal anomalies
ISSN:1614-7499, 0944-1344, 1614-7499
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Zusammenfassung:With the continuous development of thermal infrared remote sensing technology and the maturation of remote sensing inversion algorithms based on surface temperatures, identifying high-temperature anomalous areas by inverting surface temperatures has become an crucial approach to finding geothermal potential areas. The eastern region of Longyang in western Yunnan Province is renowned for geothermal resources, though the distribution area of geothermal potential remains unknown. Therefore, this study used Landsat-8 TIRS data and four surface temperature inversion algorithms, namely, mono-window algorithm, single-channel algorithm, Du split window algorithm (SWD), and Jiménez-Muñoz split window algorithm (SWJ), to explore the astern region of Longyang. The inversion results were compared with Moderate Resolution Imaging Spectroradiometer Land Surface Temperature (MODIS LST) results for analysis and cross-validation to select the optimal algorithm. A multi-view remote sensing temperature anomaly information extraction method was adopted. Moreover, the overall threshold method, the fracture structure buffer method, and the joint analysis of diurnal temporal data were combined for the reduction of the thermal anomaly area as well as for comprehensively defining the geothermal prospective area in the study area. The results demonstrated that the mono-window algorithm had the highest accuracy with a Pearson coefficient of 0.77, which is more suitable for the surface temperature inversion in Longyang area. Furthermore, three geothermal anomalies (A, B, and C) were identified in the study area, with larger thermal anomaly in A and C, but a smaller one in B. All three areas had hot spring points verified, with A and C exhibiting more significant development potential. The research results provide a reliable methodological basis for the development of geothermal resources in the region.
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ISSN:1614-7499
0944-1344
1614-7499
DOI:10.1007/s11356-023-29678-0