Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
P-Index
This Author published in this journals
All Journal Jurnal Fisika Unand Journal of Physics and Its Applications
Herbianto, Sheren Aurellya
Unknown Affiliation
Astronomy Earth & Planetary Sciences Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Physics

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Applications of Gravity Method Based on Satellite Image Anomaly Data to Identify Subsurface Structures Althafunnisa, Namyra Aisha; Herbianto, Sheren Aurellya; Setyawan, Agus
Journal of Physics and Its Applications Vol 6, No 2 (2024): May 2024
Publisher : Diponegoro University Semarang Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpa.v6i2.21636

Abstract

We have reviewed several research related to the estimation of subsurface structure on several area in Indonesia using gravity method based on satellite image. There are located in Semarang City, Mount Tandikat, Mount Muria, Majene Earthquake Affected Area, and Mount Merapi-Merbabu. The aim of this literature study is to determine the accuracy of satellite gravity data to identify and model subsurface structures by testing them in several cases. Data processing was carried out starting from the free air anomaly and then field correction was carried out to obtain the Bouguer anomaly. Moreover, different advanced processing is carried out, such as gradient analysis, 2D and 3D modeling. The software used includes GRAV2DC, Gravblox, Bloxer, and Grav3D.The results show variations in rock density and subsurface structure at each location. Subsurface modeling includes rock types, faults and basins that can help understand local geology. The study also shows estimates of the thickness of the sediment layers at several research locations. The research results show variations in rock density in various locations (granite, sandstone, andesite, mudstone) with different density values (between 1 g/cm³ to 2.9 g/cm³). Generally, gravity data from satellite images can provide subsurface information such as lithology, geological potential, the presence of hydrothermal pathways and structures. Regarding the type of fault, it is necessary to carry out geological observations in the field and cannot just rely on the results of gravity modeling. Furthermore, the results of gravity mapping will play an important role in disaster risk management and understanding geodynamics in the area studied.
Pemodelan Bawah Permukaan Daerah Vulkanik Jawa Tengah Berdasarkan Data Magnetik EMAG2-V3 Herbianto, Sheren Aurellya; Rina Dwi Indriana; Muhammad Irham Nurwidiyanto
Jurnal Fisika Unand Vol 14 No 5 (2025)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.14.5.435-443.2025

Abstract

This study aims to analyze the subsurface magnetic properties of the volcanic region in Central Java based on EMAG2-V3 magnetic data. The magnetic data were reduced to the pole (RTP) to eliminate the effects of magnetic field inclination and declination, resulting in anomalies that are more symmetric with respect to their sources. Subsequently, magnetic anomaly separation was performed to obtain the regional and residual components. The resulting residual anomalies were further analyzed through two-dimensional inversion modeling to map the distribution of subsurface magnetic susceptibility. The interpretation results indicate that the residual magnetic anomalies range from -260 to 340 nT. Meanwhile, the inversion modeling reveals that subsurface susceptibility values vary from -10 × 10⁻⁴ to 20 × 10⁻⁴ CGS. Low susceptibility values are generally found in active volcanic bodies such as Mount Merapi, Merbabu, and Sumbing, indicating the presence of hydrothermal alteration zones and magma pockets. On the other hand, higher susceptibility values are mostly found on mountain slopes, associated with the presence of fresh volcanic rocks rich in ferromagnetic minerals. These findings suggest that magnetic anomaly analysis can be an effective method for revealing lithology and subsurface geological structures on a regional scale.
Co-Authors Agus Setyawan Althafunnisa, Namyra Aisha Muhammad Irham Nurwidiyanto Rina Dwi Indriana