GIS Specialist & Geologist

Alvin
Adiraharja
Marcelino
Gunawan

Spatial intelligence meets geological expertise. I build maps, analyze hazard risks, and turn complex geographic data into decisions.

Alvin Adiraharja Marcelino Gunawan
GIS Technology
AHP Method
3+ Map Types
GEO Field Work
QGIS
ArcGIS
Spatial Analysis
AHP Method
Geological Mapping
Hazard Assessment
Field Survey
Remote Sensing
Definition

Geographic
Information System

Computer-based spatial technology

GIS is a computer-based technology used to perform geographic analysis. It consists of various components that allow users to input, store, analyze, and generate spatial data — turning raw geography into actionable insight.

From geological survey to multi-hazard risk mapping, GIS enables specialists to layer complex spatial datasets and derive conclusions that would be impossible with conventional cartography alone.

Field Work Field Work
Expertise

Areas of Application

Key domains where GIS analysis delivers measurable impact.

01
Geological Mapping

Creation of Framework Maps, Geomorphology Maps, and Geological Maps for field geological surveys. GIS is the backbone of modern geological documentation.

Framework Map Geomorphology Geology
02
Multi-Hazard Assessment

Building comprehensive hazard maps by combining GIS spatial analysis with multi-criteria methods such as AHP (Analytic Hierarchy Process) to model and communicate disaster risk.

Hazard Mapping AHP Method Risk Analysis
03
Spatial Data Integration

Merging diverse data sources — topographic, hydrological, land use — into coherent spatial layers that support evidence-based planning and decision-making.

Data Fusion Spatial Analysis
Portfolio

Map Gallery

A selection of hazard and geological maps produced using GIS methodologies.

Flood Hazard Index Hazard
Flood Hazard Index
Flood stability analysis · Regional scale
Landslide Risk Zones Hazard
Landslide Risk Zones
Landslide stability analysis · Regional scale
Combined Multi-Hazard Multi-Risk
Combined Multi-Hazard
Composite risk overlay · Regional scale · Disaster planning
Geological Map Geology
Geological Map
Geological Map · Field mapping
Geological Framework Map Framework
Geological Framework Map
Framework · Field mapping · Lithological Mapping
Contact

Let's Work
Together

Address
Perum Alinda Kencana Blok E1 No.09,
Kaliabang Tengah, Bekasi Utara, Kota Bekasi
Phone
(+62) 857-1507-1673

Ready to map something great?

Whether it's geological fieldwork, hazard assessment, or spatial data analysis — reach out and let's discuss how GIS can power your next project.

Send an email