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All Journal Jurnal Kependidikan: Penelitian Inovasi Pembelajaran Pendidikan Geografi JURNAL SPASIAL Sumatra Journal of Disaster, Geography and Geography Education Jurnal Penelitian Pendidikan IPA (JPPIPA) Pendas : Jurnah Ilmiah Pendidikan Dasar Jurnal Geografi JURNAL BUANA JURNAL PENDIDIKAN TAMBUSAI Abdi: Jurnal Pengabdian dan Pemberdayaan Masyarakat Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat Science and Environmental Journals for Postgraduate Technologica Tsaqofah: Jurnal Penelitian Guru Indonesia YASIN: Jurnal Pendidikan dan Sosial Budaya Al-DYAS : Jurnal Inovasi dan Pengabdian kepada Masyarakat International remote sensing application journal Jurnal Buana JURNAL BUANA
Helfia Edial
Universitas Negeri Padang
Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Materials Science & Nanotechnology Medicine & Pharmacology Physics Public Health Social Sciences Other

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SPASIAL PERUBAHAN TUTUPAN LAHAN MENGGUNAKAN METODE SUPERVISED CLASSIFICATION PASCA BENCANA BANJIR BANDANG DI KECAMATAN PAUH, DAS BATANG KURANJI Adhelia Josi Wulan Sari; Helfia Edial
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 03 (2026): Volume 11 No. 03, September 2026 Processed
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i03.62876

Abstract

Land cover change is an important indicator for describing the dynamics of the Earth's surface, particularly following disaster events. Information on post-flash flood land cover change and its spatial distribution patterns in Pauh District within the Batang Kuranji Watershed remains limited, highlighting the need for analyses capable of identifying both the magnitude of land cover change and its spatial characteristics. This study aimed to: (1) analyze land cover conditions before and after the flash flood event; (2) examine post-disaster land cover change; and (3) analyze the spatial distribution pattern of land cover change in Pauh District within the Batang Kuranji Watershed. A descriptive quantitative approach was employed using spatial analysis based on Remote Sensing and Geographic Information Systems (GIS). Land cover classification was performed using the Supervised Classification method with the Maximum Likelihood Classification (MLC) algorithm on Sentinel-2A imagery acquired in 2025 and January 2026, and the classification results were validated using a Confusion Matrix. Land cover change was analyzed using the Post-Classification Comparison (PCC) method through overlay techniques, while the spatial distribution pattern was examined using the Average Nearest Neighbor (ANN) method. The results indicate that the vegetation class remained the dominant land cover, covering 11,416 ha (95.64%) in 2025 and 11,004 ha (92.19%) in 2026. The classification achieved high accuracy, with an Overall Accuracy of 97.67% and a Kappa Coefficient of 0.965. Land cover change occurred over 443 ha (3.71%) of the study area, with the largest transition being from vegetation to bare land, covering 329 ha. The most extensive land cover change was identified in Lambung Bukit Village. The ANN analysis produced a Nearest Neighbor Ratio (NNR) of 0.42, indicating that the spatial distribution of land cover change exhibited a clustered pattern. These findings demonstrate that post-flash flood land cover change was concentrated along the Batang Kuranji River corridor and the upstream watershed area, providing valuable spatial information to support environmental monitoring and post-disaster land management
Analisis Bahaya Bencana Gempa Bumi di Wilayah Kabupaten Pesisir Selatan Adam Muchammad Farhan; Helfia Edial
YASIN Vol 4 No 5 (2024): YASIN: Jurnal Pendidikan dan Sosial Budaya
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/yasin.v4i5.3748

Abstract

This study aims to determine the earthquake hazard levels in Pesisir Selatan Regency, West Sumatra Province, by identifying the Peak Ground Acceleration (PGA) values and the distribution of earthquake hazard levels. The type of research used is quantitative descriptive analysis and spatial analysis. The method employed in this study is Probabilistic Seismic Hazard Analysis (PSHA). To determine the Peak Ground Acceleration values, parameters such as earthquake location, occurrence time, and earthquake magnitude are used. For determining the earthquake hazard distribution, data on Ground Amplification Factor (GAF) is utilized. The results of this study show that the distribution of Peak Ground Acceleration in the study area ranges from 0.17 g to 0.93 g. The value of 0.17 g is found in Koto XI Tarusan District, while the highest value is observed in Silaut District. Additionally, the distribution of earthquake hazard levels shows that areas with low hazard level cover 697.04 km², moderate hazard level covers 4150.49 km², and high hazard level covers 1201.81 km². This study provides earthquake hazard maps that can be used for mitigation and planning in the region.
Co-Authors A.A. Ketut Agung Cahyawan W Abel Tasman Adam Muchammad Farhan Adhelia Josi Wulan Sari Agung Agung Prayitno ahyuni . Ahyuni Ahyuni Amril, Mohammad Rizki Andini, Melfi Aprizon Putra Ardian Syahroni asef tionanda Aslan Sari M.Si SP. Thesiwati Aslan Sari Thesiwati Azhari Syarief Berlian, Muhammad Bigharta Bekti Susetyo BONI ashari Caesario, Dipo Cici Gusnia Risyanti Cici Yulianti Dani Agustian Deded Chandra Dedi Hermon Devira Frissilla Milton Diah Permata Sari Diana Efendi DINO WILMANSYAH dion, nofrion Dipo Caesario Dwi Cahyo Kurniawan Elva Gamiarsih Elvi Zuriyani Endah Purwaningsih Erna M.Si Juita S.Pd erna, ernawati Fadillah Silalahi, Muhammad Haris Fajar Tamril Farida Farid Farida M.Sc. S.Si Fatihah, Anisa Febby Fitri Yolanda Febri Hasanta Febri Satrianto febriandi . Fitri Wulandari ghinna rahmatania gilang gilang ramadan Hakiki Mulyani Harimanando Harimanando Hasanah, Adillah Helga Oktaviana Hera Nopianti Hilda Yetri Intan dwi rahayu Iqbal Maulana Edwin IRFAN JUSAR Irfansyah, Muhammad Iska, Ridho Islami, Refki Addea Iswandi Iswandi Iswandi U Jasiro, Affandri Kausesra, Lastria Lafzia Tri Mahzuro Lara Odia Apriyanti Leni Zahara Lia Junita Luthfi, Zaky Farid M. Yogi Riyantama Isjoni Mahesa Ragil Syofyan Mardhatillah, Fitria Rahmi Marlina, Gita Melza Purnama Sapitri Mentari Dian Pertiwi Meri Dewi Sartika Mimi Yulia Putri naufal zikry arrahman Nova, Sari Novemra, Haykal Nur Azimah YY Nur Salsabila, Tri Raisya Nuri Hidayati nurkholilah nurkholilah Paus Iskarni Putri, Sri Kandi Putri, Yohanna Widia Rahmawati Ulfa Rahmi Zulva Rahmi Zulva, Rahmi Ratna Wati Ratna Wilis Ratna Willis Rauda tul Husna Rery Novio Resma Yani Ressa Andriani rexy elnando riang wirastin harefa Rina Febri Yani Astuti Rino Wahyudi, Rino Ristalia Ristalia Rizki Putra Rosa, Novia Rozana M.Si Eka Putri Sadariani, Siti Sari Nova Sepka Marnil Siska Siska Siska Siska Siska Widyawati sisva yetty Softi Nur Rahmah Sonia Sonia Sri Mariya Sri Rezki, Sri Sriwinda 22 12 Suci Allara Putri Sutria Desman Tessa Melinda TITI INDRAYATI Tri Agustia Triyatno . Triyatno . Triyatno Triyatno Triyatno Triyatno veni Nopriyanti VINA SEFIANI Vir Diannisa Zhra Welia Putri Widya Meisya Hardin Widya Prarikeslan Yoga Rahmata Yudi Antomi Yuherman Yuherman Yulfa, Arie Yulia Armi Pitri Zai, Yarniwilan Zulhijah Defitri Yani