Pemetaan Sebaran Spasial Potensi Panas Bumi Daerah Suoh Menggunakan Metode Analytical Hierarchy Process (AHP)
DOI:
https://doi.org/10.33332/jgsm.geologi.v26i2.940Abstract
Panas bumi adalah salah satu bentuk energi
terbarukan dengan besar potensi sebesar 28.5 GW di
Indonesia. Suoh diduga sebagai salah satu daerah dengan
potensi panas bumi di Indonesia yang dicirikan dengan
kemunculan manifestasi panas bumi berupa fumarola dan
mata air panas. Penelitian ini bertujuan untuk mengklasifikasi
parameter input penelitian dan menganalisis daerah
berpotensi panas bumi tinggi. Metode Analytical Hierarchy
Process (AHP) menjadi salah satu metode yang telah
digunakan penelitian terdahulu dalam menganalisis potensi
panas bumi suatu daerah. Pada penelitian ini digunakan
parameter geosains berupa geologi, manifestasi, alterasi
hidrotermal, suhu permukaan, kerapatan kelurusan, dan
anomali gaya berat. Bobot tiap parameter ditentukan dari
metode AHP dan hasilnya dilakukan pembobotan overlay.
Peta potensi panas bumi daerah Suoh diklasifikasikan
menjadi 4 kelas, yaitu potensi panas bumi rendah, sedang,
tinggi, dan sangat tinggi. Daerah dengan potensi panas
bumi tinggi tersebut berada pada daerah didekat manifestasi
dengan jenis batuan vulkanik, memiliki densitas kelurusan
yang cenderung tinggi, merupakan daerah dengan alterasi,
suhu permukaannya tinggi, anomali residual cenderung
sedang hingga sangat tinggi. Daerah berpotensi panas bumi
tinggi berkorelasi dengan 8 titik manifestasi panas bumi di
daerah penelitian.
Kata Kunci: panas bumi, potensi, analytical hierarchy
process (AHP), analisis spasial
Abstract-
Geothermal heat is one of the forms of renewable
energy with a substantial potential of 28.5 GW in Indonesia.
Suoh is suspected to be one of the areas with geothermal
potential in Indonesia, characterized by the occurrence
of geothermal manifestations in the form of fumaroles
and hot springs. This study aims to classify the research
input parameters and analyze areas with high geothermal
potential. The Analytical Hierarchy Process (AHP) method
is one of the techniques previously used in analyzing the
geothermal potential of an area. In this study, geological
parameters such as geology, manifestations, hydrothermal
alteration, surface temperature, lineament density, and
gravity anomalies were used. The weight of each parameter
was determined using the AHP method, and the results were
subjected to overlay weighting. The geothermal potential
map of the Suoh area was classified into 4 classes: low,
moderate, high, and very high geothermal potential.
Regions with high geothermal potential are located near
manifestations, characterized by volcanic rock types, a
tendency for high lineament density, areas with alteration,
high surface temperatures, and moderate to very high
residual anomalies. High geothermal potential areas
correlate with 8 geothermal manifestation points in the
research area.
Keywords: geothermal, potential, Analytical Hierarchy
Process (AHP), spatial analysis
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Copyright (c) 2025 Astri Niken Saputri, I Gede Boy Darmawan, Karyanto, Nandi Haerudin, Ordas Dewanto

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