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All Journal Geo Media: Majalah Ilmiah dan Informasi Kegeografian Ecotrophic, Journal of Environmental Science Jurnal Wilayah dan Lingkungan GEA, Jurnal Pendidikan Geografi Jurnal Pengabdian kepada Masyarakat Nusantara Jurnal Ilmu Kehutanan Journal of Geographical Sciences and Education Jurnal Geosaintek Jurnal Penelitian Pendidikan Geografi
Aldiansyah, Septianto
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Agriculture, Biological Sciences & Forestry Astronomy Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Social Sciences

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Mapping Drought Severity Based on Sentinel-2 Harmonized Data Using Google Earth Engine Aldiansyah, Septianto; Ati, Amniar; Sudirman, Andi Sulia; Hasanah, Nur
Jurnal Penelitian Pendidikan Geografi Vol 11 No 1 (2026)
Publisher : Jurusan Pendidikan Geografi FKIP Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36709/jppg.v11i1.732

Abstract

Drought is a hydrometeorological disaster that significantly impacts ecosystems and the sustainability of land use, particularly in humid tropical regions that have long been considered relatively resilient. This study aims to analyze the level of drought in Konawe Selatan Regency using the 2024 Normalized Difference Drought Index (NDDI) with remote sensing via the Google Earth Engine platform. Inter-variable relationships were also analyzed using a statistical correlation approach to the Normalized Difference Vegetation Index (NDVI), Normalized Difference Water Index (NDWI), Land Surface Temperature (LST), and precipitation. The NDDI analysis indicates that moderate drought dominates up to 35.93% of the area, while low drought only covers 27.99%. The correlation between the NDDI and NDVI, NDWI, LST, and precipitation is relatively weak (R² <0.3), indicating that drought is not solely influenced by rainfall but is a multidimensional phenomenon. The results of this study can be used for drought mitigation and adaptation planning, water and land resource management, and as public information that can minimize the risk of drought impacts.
Co-Authors Ati, Amniar Irsan, Laode Muhamad Madani, Ilyas Mandini Mannesa, Masita Dwi Ningsih, Duwi Setiyo Wigati Nur Hasanah Nuri Aslami Pambudi, Bayu Prasetyo Pati B, Abdul Jabbar Risna Risna, Risna Ristrianti, Yusniar Rah Ayu Saputra, Randi Adrian Sudirman, Andi Sulia Supriatna Supriatna Syamsul Bachri Wahid, Khalil Abdul