Geothermal Potential Mapping in Korea Using GIS Data Integration
- Key words
- geothermal potential mapping, GIS data integration, frequency ratio model, heat flow, Korea
- Location
- Korea
- Conference
- World Geothermal Congress
- Year
- 2010
- Session
- 11. Exploration
- Language
- English
- Paper number
- 1145
Full text
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Abstract
GIS data integration is applied for geothermal potential mapping in Korea. Several data sets, such as geological map, drainage map, lineament map, DEM, were collected as thematic maps for the integration. Frequency ratio model was applied to analyze the spatial relationship between the occurrences of high heat flow (> 70 ㎽/㎡) and the related-factors on thematic maps. The geothermal potential index was calculated by overlay of each factor’s ratings on thematic maps, the indexes were mapped to represent geothermal potential. The success rate was calculated by test of geothermal potential map using the occurrences of high heat flow and high geothermal gradient.
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