Analisis arah perkembangan fisik kawasan terdampak gempa di Kabupaten Sleman berbasis Nighttime Light

Arifian Dwi Wijayanto, Nur Miladan, Mochamad Primasakti Satyagraha

Abstract

Pascagempa tektonik tahun 2006, Kabupaten Sleman mengalami perubahan spasial yang signifikan seiring dengan proses rehabilitasi dan rekonstruksi wilayah. Penelitian ini difokuskan pada empat kecamatan dengan dampak terbesar, yaitu Kecamatan Berbah, Kalasan, Depok, dan Prambanan. Tujuan penelitian ini adalah mengidentifikasi arah perkembangan fisik kawasan terbangun di wilayah terdampak gempa menggunakan kombinasi data citra cahaya malam (Nighttime Light) terharmonisasi dan pendekatan zonasi spasial clockboard. Analisis dilakukan secara longitudinal dengan memanfaatkan data DMSP-OLS dan VIIRS tahun 2006, 2007, 2013, 2018, dan 2023. Hasil penelitian menunjukkan bahwa arah dominan perkembangan fisik wilayah bergerak ke arah utara dan timur laut, menjauhi zona rawan gempa yang berasosiasi dengan Sesar Opak. Intensitas cahaya tertinggi teridentifikasi pada ring B dan sektor timur laut, yang mengindikasikan pola pertumbuhan spasial yang mempertimbangkan aspek keamanan dan aksesibilitas. Pendekatan kombinatif antara Nighttime Light dan clockboard terbukti efektif dalam memetakan dinamika spasial pascabencana dan berpotensi diterapkan pada wilayah rawan bencana lainnya. Temuan ini memberikan kontribusi terhadap pengembangan metode analisis spasial berbasis bukti untuk mendukung perencanaan wilayah yang adaptif dan tangguh bencana.

Keywords

Clockboard; Gempa bumi; Nighttime Light

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DOI: https://doi.org/10.20961/region.v21i1.103359

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