Research

Research interests and activities.

Indra Gunawan - Lecturer and Researcher in Geophysics

My research focuses on the development and application of geophysical methods for investigating subsurface structures and understanding geological processes. My work combines geophysical theory, numerical computation, field observations, data science, and quantitative analysis.

I am particularly interested in computational approaches, potential-field methods, geophysical data processing, subsurface characterization, and the application of emerging computational techniques to geophysical problems.

Research Areas

Computational Geophysics

Development and application of numerical and computational approaches for geophysical modeling, numerical analysis, large-scale data processing, big data, and parallel computation.

Selected Research

Publication
Optimizing Gravity Forward Modeling through OpenMP Parallel Approach: A Case Study in Bawean Island
Indonesian Journal on Computing · 2025
Publication
The Early Study for Nature-Inspired Algorithms in Geophysical Modeling Based on Gravity Method: Prototype Bat Algorithm in 3D Gravity Inversion
IOP Conference Series: Earth and Environmental Science · 2024
Student Research
Development and Analysis of a 2D Deterministic Inversion Program of Least-Square Method with the Addition of Weighting Function on Magnetic Anomalies (Case Study: Pandan Mountain Area, East Java)
Gerardus Widangma Naige · Bachelor's in Geophysics · 2023 – 2024

Gravity & Geomagnetic Methods

Application and development of gravity and geomagnetic methods for investigating subsurface structures, geological processes, and variations in physical properties.

Selected Research

Research Project
Development of a Joint Inversion Method for Complete Bouguer Anomaly and Real Vertical Gravity Gradient Data for Subsurface Structural Modeling
2026 – 2028
Research Project
Identification of Subsurface Structures for Geological Disaster Mitigation in Sukabumi City Using the Gravity Method
2025 – 2027
Publication
Annotation of using borehole time-lapse gravity by genetic algorithm inversion for subsurface modeling
Journal of Engineering and Technological Sciences · 2020

Potential Field Modeling

Potential-field modeling and analysis, including gravity forward modeling, anomaly analysis, regional-residual separation, derivative analysis, and quantitative interpretation.

Selected Research

Student Research
Geothermal Potential of Kadidia, Central Sulawesi Based On Gravity Modeling
Aulia Huda Pinandita · Master's in Geophysics · 2022 – 2022
Student Research
Study of The Influence of Reduced to The Pole, Reduced to The Equator, and Hilbert Transformation on Geomagnetic Data Modelling
Fichri Firmansyah · Bachelor's in Geophysics · 2022 – 2023

Electrical & Electromagnetic Methods

Application of electrical and electromagnetic methods, including electrical resistivity and induced polarization (IP), for subsurface characterization and geological investigation.

Selected Research

Student Research
ANALISIS VARIASI MUSIMAN KEDALAMAN MUKA AIR TANAH BERDASARKAN SURVEI GEOLISTRIK RESISTIVITAS TIME-LAPSE DI LAPANGAN KAMPUS CIREBON
Sitti Adillah Rambe · Master's in Geophysics · 2025
Student Research
Integration of Multidimensional Resistivity-IP Modeling and Unsupervised Machine Learning for Clustering Mineralization Zones in Metallic Mineral Prospect Areas
Maximilliana Alexandra A. H. · Bachelor's in Geophysics · 2025 – 2026

Geophysical Data Processing & Data Science

Processing, quantitative analysis, and interpretation of geophysical data, with emphasis on data quality, anomaly extraction, data-driven analysis, and computational workflows.

Selected Research

Publication
Study on the Significance of Reduction to the Equator (RTE), Reduction to the Pole (RTP), and Pseudogravity in Magnetic Data Interpretation
Jurnal Penelitian Pendidikan IPA · 2023
Student Research
Analysis of Bathymetric Data Influence on Terrain Correction in Gravity Data Processing: Case Study in Banda Neira and Kur Island Regions
Yudith Pratama Ibrahim · Bachelor's in Geophysics · 2022 – 2023
Student Research
Data Processing and Subsurface Interpretation Using Gravity Data of The Kamojang Geothermal Field, Garut, West Java
Fuad Fakhrurrozy · Bachelor's in Geophysics · 2023 – 2024

Subsurface Characterization & Modeling

Development of subsurface models to characterize geological structures and physical-property variations using geophysical observations and numerical modeling.

Selected Research

Publication
Annotation of using borehole time-lapse gravity by genetic algorithm inversion for subsurface modeling
Journal of Engineering and Technological Sciences · 2020
Publication
Modeling of subsurface structure by using magnetic methods in the area of Mt. Pandan, Indonesia
Arabian Journal of Geosciences · 2022
Publication
Terrain Correction in Gravity Data Processing using Hybrid Land Survey and Shuttle Radar Topography Mission Digital Elevation Model: A Case Study in Mount Pandan, Indonesia
Journal of Physics: Conference Series · 2022

Artificial Intelligence & Machine Learning

Exploration of artificial intelligence and machine learning approaches for geophysical data analysis, pattern recognition, modeling, and interpretation.

Selected Research

Student Research
Integration of Multidimensional Resistivity-IP Modeling and Unsupervised Machine Learning for Clustering Mineralization Zones in Metallic Mineral Prospect Areas
Maximilliana Alexandra A. H. · Bachelor's in Geophysics · 2025 – 2026
Student Research
Analysis of artificial neural network utilization for bouguer anomaly interpolation
Muhamad Luqman Addura · Bachelor's in Geophysics · 2022 – 2024