Fusion of Terra-MODIS and Landsat TM data for geothermal sites investigation in Jiangsu Province, China

Shengbo Chen

doi:10.1117/12.668336

20 January 2006 Fusion of Terra-MODIS and Landsat TM data for geothermal sites investigation in Jiangsu Province, China

Shengbo Chen

Proceedings Volume 6027, ICO20: Optical Information Processing; 60273L (2006) https://doi.org/10.1117/12.668336
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China

Abstract

Geothermal resources are generally confined to areas of the Earth's crust where heat flow higher than in surrounding areas heats the water contained in permeable rocks (reservoirs) at depth. It is becoming one of attractive solutions for clean and sustainable energy future for the world. The geothermal fields commonly occurs at the boundaries of plates, and only occasionally in the middle of a plate. The study area, Jiangsu Province, as an example, located in the east of China, is a potential area of geothermal energy. In this study, Landsat thematic Mapper (TM) data were georeferenced to position spatially the geothermal energy in the study area. Multi-spectral infrared data of Moderate Resolution Imaging Spectroradiometer (MODIS) aboard the Terra platform were georeferenced to Landsat TM images. Based on the Wien Displacement Law, these infrared data indicate the surface emitted radiance under the same atmospheric condition, and stand for surface bright temperature respectively. Thus, different surface bright temperature data from Terra-MODIS band 20 or band 31 (R), together with Landsat TM band 4 (G) and band 3 (B) separately, were made up false color composite images (RGB) to generate the distribution maps of surface bright temperatures. Combing with geologic environment and geophysical anomalies, the potential area of geothermal energy with different geo-temperature were mapped respectively. Specially, one geothermal spot in Qinhu Lake Scenery Area in Taizhou city was validated by drilling, and its groundwater temperature is up to some 51°.

Citation Download Citation

Shengbo Chen "Fusion of Terra-MODIS and Landsat TM data for geothermal sites investigation in Jiangsu Province, China", Proc. SPIE 6027, ICO20: Optical Information Processing, 60273L (20 January 2006); https://doi.org/10.1117/12.668336

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