The Analysis of Rainfall Triggering Thresholds In Kulon Progo DIY Based On GSMaP Composite Data In The OND Period of 2020 - 2022

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Published:

Jan 2, 2025

DOI:

https://doi.org/10.46824/megasains.v15i2.236

Keywords:

Threshold, Rainfall, GSMaP, Kulon Progo, Landslide

 

Main Article Content

Lu'lu Nabila Khansa
Fakultas Geografi, Universitas Gadjah Mada
Denisa Ajeng Sabrina
Fakultas Geografi, Universitas Gadjah Mada
Bela Sela Cleodora Yostya
Fakultas Geografi, Universitas Gadjah Mada
Yogi Pratama Hidayat
Fakultas Geografi, Universitas Gadjah Mada
Andung Bayu Sekaranom
Fakultas Geografi, Universitas Gadjah Mada
Andriyas Aryo Prabowo
Stasiun Klimatologi, Badan Meteorologi Klimatologi dan Geofisika, DIY

Abstract

Rainfall intensity that varies every time period is one of the factors that can trigger landslides. The urgency of landslide mitigation is important because landslides cause material losses, ecological damage, and even fatalities. One of the regencies prone to landslides is Kulon Progo Regency, Special Region of Yogyakarta. The application of landslide identification can be done by determining the rainfall threshold with observation data and GSMaP satellite data. The rainfall intensity that occurs on the D-day does not directly affect the occurrence of landslides but the calculation of the amount of rainfall that occurs 10 days before the D-day of the landslide. The rainfall thresholds used are 34,26 mm on D-Day, 85,61 mm on H-3, and 188,54 mm on H-10. Kulon Progo Regency has many landslides, especially those classified as prone to very prone, along Samigaluh, Girimulyo, and Kokap sub-districts. The sub-district that has the potential to be very prone to landslides is Samigaluh sub-district

Article Details

Issue
Vol. 15 No. 2 (2024): Megasains Vol.15 No. 2 Tahun 2024
Section
Article
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