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GeoEdu Insight Journal: Geography and Education Geography

an Open Access Journal

GIS-Based Spatial Modeling for Drought Vulnerability Mapping with Field Validation in Sukabumi Regency, Indonesia

Dinda Maulidya
Mujahidin Private Senior High School
Indonesia
Fauzan Adzima Adha
Universitas Muhammadiyah Sukabumi ROR
Indonesia
fauzanadzimaA@gmail.com
Jami` Atannur
Tanjungpura University ROR
Indonesia
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  • Purpose of the study: This study aimed to identify and map drought vulnerability levels in Sukabumi Regency, Indonesia, using GIS-based spatial modeling integrated with remote sensing and field validation to provide reliable spatial information for drought risk assessment and mitigation planning.

    Methodology: A quantitative descriptive approach was employed using Geographic Information Systems (GIS), Landsat imagery, and remote sensing techniques. ArcGIS 10.8 software was used for spatial analysis through scoring and overlay methods. Primary data were obtained from field observations and interviews, while secondary data included rainfall, land use, soil type, slope, NDVI, and land surface temperature datasets.

    Main Findings: Results revealed that drought vulnerability in Sukabumi Regency was classified into low, moderate, high, and very high categories. High vulnerability covered the largest area, accounting for 1,815.68 km² (44.02%), followed by very high vulnerability with 1,278.83 km² (31.00%). Field validation at thirty observation points confirmed the consistency between spatial modeling results and actual drought conditions.

    Novelty/Originality of this study: Novelty of this study lies in the integration of GIS-based spatial modeling and remote sensing with field validation through observations and interviews conducted in districts with the highest drought potential. This approach enhances the reliability of drought vulnerability mapping and provides more comprehensive spatial information for supporting disaster mitigation and regional planning.

  • How to cite

    GIS-Based Spatial Modeling for Drought Vulnerability Mapping with Field Validation in Sukabumi Regency, Indonesia. (2026). GeoEdu Insight Journal: Geography and Education Geography, 1(2), 138-145. https://doi.org/10.37251/gedij.v1i2.3544

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