Gravity Anomaly in Kelud, Kasinan-Songgoriti, and Arjuno-Welirang Volcano Hosted Geothermal Area, East Java, Indonesia
Novita Wahyuningsih1, Sukir Maryanto2, Wiyono3

1Novita Wahyuningsih, Magister Program, Department of Physics, Universitas Brawijaya, Malang, East Java, Indonesia. 

2Sukir Maryanto, Department of Physics, Brawijaya Volcanology and Geothermal Research, Universitas Brawijaya, Malang, Indonesia. 

3Wiyono, Department of Physics, Universitas Brawijaya, Malang, Indonesia.

Manuscript received on 10 January 2020 | Revised Manuscript received on 06 February 2020 | Manuscript Published on 20 February 2020 | PP: 172-176 | Volume-9 Issue-3S January 2020 | Retrieval Number: C10380193S20/2020©BEIESP | DOI: 10.35940/ijitee.C1038.0193S20

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Abstract: This study aims to determine the relationship of heat reservoirs in the Kelud, Kasinan-Songgoriti, and Arjuno-Welirang geothermal systems based on gravity data analysis. Gravity data are obtained from Geodetic Satellite (GEOSAT) and European Remote Sensing-1 (ERS-1) Satellite which have been corrected to free air correction. The result of gravity data analysis is in the form of a complete Bouguer anomaly which represents the gravity anomaly below the surface. The results of the complete Bouguer anomaly value obtained were -15,238 mGal to 86,087 mGal. Based on these results, regional anomalies and residual anomalies will be separated to determine the depth of the two anomalies. 3D modeling was carried out based on the complete Bouguer anomaly data to determine the reservoir relationships in the Kelud, Kasinan-Songgoriti, and Arjuno-Welirang geothermal systems.

Keywords: Gravity Data, Complete Bouguer Anomaly, Reservoir, Geothermal, GEOSAT and ERS-1 Satellite.
Scope of the Article: Bio-Science and Bio-Technology