Landsat 8 Satellite Imagery for Geothermal Potential and Volcanic Monitoring at Mount Talang, West Sumatra a)Geological Engineering Department, University of Pembangunan Nasional ^Veteran^ Yogyakarta, Yogyakarta, Indonesia Abstract This study aims to identify geothermal anomalies at Mount Talang, West Sumatra, using remote sensing methods with Landsat 8 satellite imagery through the analysis of the Normalized Difference Vegetation Index (NDVI) and Land Surface Emissivity (LSE). Mount Talang is an active volcano in Indonesia that requires continuous monitoring for disaster mitigation. The method involves processing thermal and reflective data from Landsat 8 to calculate NDVI as an indicator of vegetation health and LSE to detect emissivity variations associated with geothermal activity. This analysis employs atmospheric correction techniques and thermal anomaly mapping to ensure accurate results. The findings reveal several areas with elevated surface temperatures and low NDVI values, indicating potential geothermal activity in those regions. These anomalies are detected to aid in monitoring the volcano and identifying geothermal potential. The study concludes that using Landsat 8 satellite imagery combined with NDVI and LSE analysis is an effective tool for monitoring geothermal anomalies in volcanic areas, offering a cost-effective and efficient method for assessing volcanic activity and geothermal potential. Keywords: Remote Sensing- Geothermal- Mount Talang- Landsat 8- NDVI Topic: Engineering |
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