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Sony Nugratama Hijrawadi
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Jl. Rawa Mangun Muka Raya No.11, RT.11/RW.14, Rawamangun, Kec. Pulo Gadung, Kota Jakarta Timur, Daerah Khusus Ibukota Jakarta 13220
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INDONESIA
JURNAL SAINS GEOGRAFI
Published by Universitas Negeri Jakarta
ISSN : -     EISSN : 30259355     DOI : https://doi.org/10.21009/jsg.v1i1
Core Subject : Science, Social, Engineering,
Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Engineering Environmental Science
Jurnal Sains Geografi (JSG) merupakan jurnal akses terbuka dan peer-review yang diterbitkan oleh Program Studi Geografi Fakultas Ilmu Sosial dan Hukum Universitas Negeri Jakarta, yang mempublikasikan hasil penelitian pada bidang geografi, khususnya meliputi kajian yang terkait Geomorfologi terapan, Perubahan Iklim, Perubahan penggunaan lahan/tutuan lahan dan implikasinya, kebencanaan, Konservasi Sumberdaya alam, Pembangunan Wilayah dan Perdesaan/Perkotaan, Aplikasi Sistem Informasi Geografis dan Penginderaan Jauh. JSG bertujuan menjadi tempat yang mendiseminasikan karya-karya ilmiah bidang geografi untuk meningkatkan pemahaman dan penerapannya. Jurnal ini terbit dengan frekuensi dua kali dalam satu tahun (Mei dan November) Jurnal Sains Geografi menerbitkan artikel original yang belum pernah diterbitkan sebelumnya. Artikel yang diterbitkan meliputi kajian antara lain: 1. Geomorfologi terapan 2. Perubahan Iklim dan dampaknya 3. Perubahan penggunaan lahan/tutupan lahan dan implikasinya 4. Kebencanaan 5. Konservasi Sumberdaya alam 6. Pembangunan Wilayah dan Perkotaan 7. Aplikasi Sistem Informasi Geografis dan Penginderaan Jauh
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Ilmu Bumi dan Planet (Lain-Lain)
Articles 51 Documents
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Multi-Sensor NDVI Analysis of Eruption Impacts and Vegetation Recovery at Mount Kelud, East Java (2013–2025) Bubacarr Jawla; Yesenia Zabrina Maharani Yaffa Hardianto; Faye Jerreh Manneh; Sherif A Bah; Omar M Camara; Sainey Danjo
Jurnal Sains Geografi Vol 4 No 1 (2026): JURNAL SAINS GEOGRAFI
Publisher : Fakultas Ilmu Sosial dan Hukum, Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JSG.v4i1.01

Abstract

This study examines the effects of the February 2014 volcanic eruption of Mount Kelud, East Java, Indonesia, on vegetation dynamics and the subsequent recovery process using multi-temporal satellite-derived Normalized Difference Vegetation Index (NDVI) data. Although NDVI has been extensively used in the past to analyze post-disaster conditions, there is very little long-term, multi-sensor analysis in tropical volcanic regions. In this research, there is a combination of Landsat 8 OLI and Sentinel-2 MSI images to assess spatial and temporal vegetation changes from 2013 to 2025. Findings reveal that the NDVI decreased drastically (by more than 0.50 units) shortly after the eruption and further confirm that a significant amount of vegetation was lost due to ashfall, pyroclastic flows, and lahars. However, the vegetation recovery was quick, as the NDVI values returned to the pre-eruption values after one year and surpassed the baseline values in subsequent years (0.80-0.87). Damage classification indicated 89% of sampled sites were low-severity disturbed, and there was spatial heterogeneity in eruption effects. The statistical analysis indicated that there was no significant seasonal effect on the variability of NDVI (r = −0.095, p > 0.05), which suggested that vegetation dynamics are more influenced by disturbance as opposed to climatic seasonality. The results indicate that multi-sensor NDVI analysis is effective in tracking recovery after an eruption and gives an understanding of the resilience of the tropical volcanic ecosystems.

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