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      Pemetaan Daerah Rawan Banjir Berbasis Sistem Informasi Geografis pada Kecamatan Kalideres Kota Jakarta Barat

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      Date
      2023-08-01
      Author
      Vian, Kukuh Okta
      Suharnoto, Yuli
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      Abstract
      Kecamatan Kalideres di Jakarta Barat, DKI Jakarta, sering dilanda banjir akibat meluapnya Kali Semongol yang melewati tiga kelurahan rawan banjir, yaitu Kelurahan Kamal, Kelurahan Tegal Alur, dan Kelurahan Pegadungan. Tujuan dari penelitian ini adalah mengetahui pengaruh faktor curah hujan, jenis tanah, kemiringan lereng, ketinggian lahan, tutupan lahan serta sungai terhadap peluang kejadian banjir, memetakan kawasan yang berpotensi banjir, serta mengidentifikasi daerah risiko banjir di Kecamatan Kalideres. Sistem Informasi Geografis (SIG) memungkinkan identifikasi cepat daerah rawan banjir melalui pemetaan menggunakan metode Weighted Overlay. Kecamatan Kalideres memiliki total penduduk sebanyak 449.998 jiwa, terdiri dari lima kelurahan, yaitu Kelurahan Kamal, Tegal Alur, Pegadungan, Kalideres, dan Semanan. Kelurahan Kalideres memiliki tingkat kerawanan banjir yang tinggi dengan luas 18,32 ha (0,65%) karena termasuk dalam kategori kritis dengan durasi terjadinya banjir selama 2 – 15 hari dan kedalaman banjir 0.5 – 3 m. Kelurahan Pegadungan memiliki risiko tertinggi dengan 106.914 jiwa terpapar dan kerugian ekonomi sekitar 16,15 milyar rupiah.
       
      The sub-district of Kalideres in West Jakarta, DKI Jakarta, is often affected by floods due to the overflowing of Kali Semongol, which passes through three flood-prone neighborhoods, namely Kamal, Tegal Alur, and Pegadungan. The purpose of this study is to determine the influence of factors such as rainfall, soil type, slope gradient, land elevation, land cover, and proximity to rivers on the likelihood of flooding, to map flood-prone areas, and to identify flood risk areas in Kalideres sub-district. Geographic Information System (GIS) enables rapid identification of flood-prone areas through mapping using the Weighted Overlay method. Kalideres sub-district has a total population of 449,998 people, consisting of five neighborhoods, namely Kamal, Tegal Alur, Pegadungan, Kalideres, and Semanan. The Kalideres neighborhood has a high flood vulnerability level with an area of 18.32 ha (0.65%) as it falls under the critical category with a flood duration of 2 – 15 days and a flood depth of 0.5 – 3 m. The Pegadungan neighborhood has the highest risk, with 106,914 people exposed and an estimated economic loss of around 16.15 billion rupiahs.
       
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      http://repository.ipb.ac.id/handle/123456789/122909
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      • UT - Civil and Environmental Engineering [1042]

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