首页|Satellite remote sensing data and their interpretations for geothermal applications: A case study on the Ngada District, central Flores, Indonesia
Satellite remote sensing data and their interpretations for geothermal applications: A case study on the Ngada District, central Flores, Indonesia
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NSTL
A remote sensing survey was conducted in the Ngada District for geothermal exploration using JERS-1 SAR and OPS, and ASTER VNIR and TIR data. As a result, many small volcanic cones, which have diameters less than 5 km, are seen near the Bajawa in the SAR image. Some volcanic cones are aligned along the north-south direction. Since the SAR has all-weather observation capability, it provides us with details of the volcanic features in the study area, where it is difficult to obtain cloud-free images using optical sensors. Volcanic features are not as obvious in the OPS image compared with the SAR image because of the high sun elevation angle in tropical areas. A small high temperature anomaly is found at the Nage geothermal area using ASTER TIR, which is a new spaceborne sensor having a high spatial resolution. These results demonstrate the advantages and limitations of satellite remote sensing survey for geothermal applications.
NSTL
