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Pemetaan Tingkat Rawan Banjir Dan Keterpaparan Permukiman Das Wae Apu Kabupaten Buru Pasha, Fidyah Ayu; Nanlohy, W D; Puturuhu, Ferad
Jurnal Geografi, Lingkungan dan Kesehatan Vol 1 No 1 (2023): Jurnal Geografi, Lingkungan dan Kesehatan
Publisher : Program Studi Pendidikan Geografi Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jglk.1.1.9979

Abstract

Wae Apu River is one of the rivers in Buru with a length of 47.25 km with a watershed area covering 2 districts namely Buru and South Buru with an area of 188,511 Ha. Every year the Wae Apu River overflows and causes flooding in the surrounding areas along the river channel. The cause of flooding for this river itself is influenced by 2 factors, namely natural and artificial factors (human activities). The intensity of flooding that often occurs certainly has an impact and loss for the community. Based on the existing conditions, it is necessary to conduct research related to the identification of flood-prone areas in the watershed by mapping vulnerable areas and creating settlement exposure zones which are the most at-risk components. The data analysis method used in this research is the spatial analysis and overlay method, used to provide an overview of the physical environment, flood characteristics and land use using maps in the Wae Apu watershed where each parameter will be given a weight / value depending on the level of importance of each parameter and will be overlaid to get the results of vulnerability. Based on the results of the research, the low flood vulnerability level in the Wae Apu watershed has the largest area of 133,994.7 Ha or equivalent to 73% of the total mapped area. The moderate flood prone class with an area coverage of 49,505.19 Ha or 26%. While areas with high flood vulnerability with an area of 5,011.59 Ha or equivalent to 3% of the area make this class the smallest. Residential areas exposed to moderate flood prone areas of the Wae Apu watershed are around 3,261 Ha or 90.7% and 335.84 Ha or 9.3% of residential areas are located in high flood prone areas
UJI VALIDASI  SISTEM  PREDIKSI PERINGATAN DINI BERBASIS DAMPAK UNTUK BENCANA BANJIR DI KOTA AMBON Iriyanto, Suaif; Kunu, Pieter J; Puturuhu, Ferad; Talakua, Silwanus M
JTSL (Jurnal Tanah dan Sumberdaya Lahan) Vol. 13 No. 2 (2026)
Publisher : Departemen Tanah, Fakultas Bio-industri Pertanian dan Kehutanan, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtsl.2026.013.2.10

Abstract

Ambon City a high level of vulnerability to floods due to steep topography, extreme rainfall, and land use that exceeds land capability. Floods pose a serious threat to community safety and cause damage to infrastructure. Risk reduction requires an accurate and well-implemented early warning system. This study aims to analyze the spatial level of flood disaster risk, examine the distribution of extreme rainfall during rainfall events, and assess the accuracy of the Impact-Based Forecast and Warning Services System (IBFWS). The research method includes spatial analysis using a Geographic Information System (GIS) through an overlay approach of three risk components: hazard, vulnerability, and capacity. The study also applies Inverse Distance Weighting (IDW) methods for spatial interpolation of 24-hour rainfall data from the events on May 11 and May 30, 2023, and conducts spatial validation of the IBFWS prediction results against actual landslide occurrences. The results show that 75.6% of Ambon City falls into the high-risk category for floods. Multiple linear regression analysis indicates that slope gradient is the most significant variable influencing floods hazard, with an R² value of 90.6% and an S value of 0.120. Spatial validation and field verification demonstrate that the accuracy of the IBFWS reached 94% for the floods event on May 11 and 100% for the event on May 30, 2023. These findings indicate that the IBFWS functions as a reliable early warning system to support floods disaster risk reduction in Ambon City.
ARAHAN PENATAAN KAWASAN BERBASIS MITIGASI BENCANA BANJIR DI SEMPADAN SUNGAI TAMIANG KECAMATAN SERUWAY Maghfira Khusnul Alia; Ferad Puturuhu; Rifyan Ruman
CENDEKIA: Jurnal Ilmu Pengetahuan Vol. 6 No. 3 (2026)
Publisher : Pusat Pengembangan Pendidikan dan Penelitian Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51878/cendekia.v6i3.10493

Abstract

ABSTRACT This research aims to determine the direction for area planning based on flood disaster mitigation along the banks of the Tamiang River in Seruway District, Aceh Tamiang Regency, Aceh Province. Specifically in the villages of Pekan Seruway and Muka Sungai Kuruk, which are the two villages most affected during floods caused by the overflow of the Tamiang River, resulting in the breaching of levees. The riverbank area in these two villages has a high level of flood vulnerability, thus requiring guidelines for area planning based on flood disaster mitigation. This study employs an Overlay method by combining 5 flood vulnerability parameters: slope steepness, elevation, land use, rainfall, soil type, and river buffer, to obtain the level of flood vulnerability, and then uses Triangulation analysis to determine the area planning direction. The research results show that the flood vulnerability level is divided into 3 classifications: high, medium, and low. The border area of the Tamiang River is at a high risk level, thus requiring guidance for area arrangement using Triangulation analysis, resulting in an area arrangement directive based on flood disaster mitigation, which includes rehabilitation and the construction of permanent embankments with public open space at the riverbank as a buffer zone. This research is expected to serve as a reference in determining directives for area arrangement based on flood disaster mitigation at the riverbank. ABSTRAK Penelitian ini bertujuan untuk menentukan arahan penataan kawasan berbasis mitigasi bencana banjir pada sempadan Sungai Tamiang di Kecamatan Seruway, Kabupaten Aceh Tamiang, Peovinsi Aceh. Khususnya di Desa Pekan Seruway dan Desa Muka Sungai Kuruk yang merupakan dua desa paling terdampak saat terjadi banjir akibat luapan air Sungai Tamiang sehingga menyebabkan jebolnya tanggul. Kawasan sempadan Sungai tamiang di kedua desa tersebut memiliki tingkat kerawanan banjir yang tinggi sehingga diperlukan arahan penataan kawasan berbasis mitigasi bencana banjir. Penelitian ini menggunakan metode Overlay dengan menggabungkan 5 parameter kerawanan banjir yaitu kemiringan lereng, ketinggian, penggunaan lahan, curah hujan, jenis tanah, dan buffer sungai untuk memperoleh tingkat kerawanan banjir dan kemudian menggunakan analisis Triangulasi untuk menentukan arahan penataan kawasan. Hasil penelitian menunjukkan bahwa tingkat kerawanan banjir terbagi menjadi 3 klasifikasi yaitu tinggi, sedang, dan rendah. Kawasan sempadan Sungai Tamiang berada di tingkat kerawanan tinggi sehingga dibutuhkannya arahan penataan kawasan yang menggunakan analisis Triangulasi sehingga menghasilkan arahan penataan kawasan berbasis mitigasi bencana banjir yang berupa rehabilitasi dan pembuatan tanggul permanan dengan ruang terbuka publik di sempadan sungai sebagai zona penyangga. Penelitian ini diharapkan dapat menjadi acuan dalam menentukan arahan penataan kawasan yang berbasis mitigasi bencana banjir pada sempadan sungai.