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All Journal Jurnal Geografi, Edukasi dan Lingkungan
Muhammad Aulia Zikri
Program Studi Sarjana Terapan Meteorologi, Sekolah Tinggi Meteorologi Klimatologi dan Geofisika (STMKG)
Astronomy Earth & Planetary Sciences Education Social Sciences

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Variabilitas Musiman Dan Spasial Pengaruh ENSO Dan IOD Terhadap Curah Hujan Di Sumatera Barat (1994–2023) Muhammad Aulia Zikri; Ferdy Indra Kurniawan; Rio Hansyen Saragih; Gracia Nadya Angelina Pangalo; Yosafat Donni Haryanto; Giarno
Jurnal Geografi, Edukasi dan Lingkungan (JGEL) Vol. 10 No. 2 (2026): Edisi Bulan Juli
Publisher : Pendidikan Geografi Universitas Muhammadiyah Prof. Dr. Hamka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/jgel.v10i2.21141

Abstract

ENSO (El Nino-Southern Oscillation) and IOD (Indian Ocean Dipole) significantly impact weather variability in tropical regions, including Indonesia, which can influence rainfall patterns and potentially lead to hydrometeorological disasters. This study analyzes the influence of ENSO and IOD phenomena on rainfall patterns in West Sumatra through a quantitative approach. The research utilizes rainfall data from three meteorological stations in West Sumatra spanning 30 years (1994-2023). The study employs correlation analysis to examine the relationship between ENSO (using NINO 3.4 index) and IOD with rainfall patterns across different seasons. Results indicate that ENSO and IOD impacts vary significantly by season, with the strongest correlations observed during the SON (September-October-November) period. During this period, ENSO showed strong negative correlations (r = -0.59 to -0.62) at Minangkabau and Teluk Bayur stations, while IOD demonstrated strong positive correlations (r = 0.61 to 0.63). The research findings contribute to understanding climate variability in West Sumatra and can support local climate adaptation strategies and disaster mitigation planning
Co-Authors Ferdy Indra Kurniawan Giarno Gracia Nadya Angelina Pangalo Rio Hansyen Saragih Yosafat Donni Haryanto