Analisis Tingkat Rawan Banjir Di Daerah Kabupaten Bandung Menggunakan Metode Pembobotan Dan Scoring

Sitorus, Ian Hot Oloan (2021) Analisis Tingkat Rawan Banjir Di Daerah Kabupaten Bandung Menggunakan Metode Pembobotan Dan Scoring. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Kabupaten Bandung merupakan daerah yang rawan terhadaap bencana banjir. Banjir terjadi akibat adanya genangan air pada suatu tempat dalam kurun waktu tertentu. Salah satu cara untuk dapat mengelola resiko terjadinya banjir adalah dengan memperkirakan daerah-daerah yang rawan terhadap banjir. Ada beberapa parameter yang mempengaruhi tingkat kerawanan suatu daerah terhadap banjir, diantaranya parameter curah hujan, penggunaan lahan, kemiringan lereng, ketinggian lahan, dan tekstur tanah. Parameter-parameter tersebut diolah dengan metode pembobotan dan skoring, kemudian di overlay untuk menghasilkan peta rawan banjir. Dari hasil pengolahan didapatkan hasil parameter curah hujan didominasi dengan curah hujan 1.500 – 2.000 mm/tahun dengan luas 93.523,655 ha. Parameter penggunaan lahan didominasi oleh pertanian lahan kering dengan luas 38.066,286 ha. Parameter kemiringan lereng didominasi dengan kemiringan lereng 25 – 40% dengan luas 38490,715 ha. Parameter ketinggian lahan didominasi dengan ketinggian lahan 500 – 1000 m dengan luas 68.030,334 ha. Parameter tekstur tanah didominasi oleh tekstur tanah sedang dengan luas 77.918,599 ha. Terdapat 4 kelas kerawanan banjir meliputi sangat rawan, rawan, kurang rawan, dan tidak rawan. Kabupaten Bandung didominasi kelas Kurang Rawan dengan luas 64.277,228 ha. Daerah-daerah yang tergolong kelas Sangat Rawan ada di Kecamatan Katapang, Margahayu, Dayeuh Kolot, Pameungpeuk, Bojong Soang, Margaasih, Rancaekek, Baleendah, Solokan Jeruk, Cangkuang, Kutawaringin, Soreang, Cicalengka, Banjaran, Cileunyi, Cikancung, Ciparay, Majalaya, Paseh, Arjasari, Cimaung, Rancabali, Pasir Jambu, Ciwidey, Ibun, dan Nagreg. Daerah yang memiliki persentase luas sangat rawan banjir per luas kecamatan terbesar berada di Kecamatan Katapang dengan persentase 95,06%, sedangkan persentase luas sangat rawan banjir per luas kecamatan terendah berada di Kecamatan Nagreg dengan persentase 0,01%. Hasil validasi menunjukkan bahwa seluruh kecamatan yang disebutkan dalam Peta Wilayah Siaga Darurat Bencana Banjir merupakan daerah yang tergolong kelas Sangat Rawan pada Peta Rawan Banjir. ==================================================================================================== Bandung Regency is an area that is prone to flooding. Floods occur as a result of standing water at a certain time. One way to manage the risk of flooding is to estimate the areas that are prone to flooding. There are several parameters that affect the level of vulnerability of an area to flooding, including parameters of rainfall, land use, slope, land height, and soil texture. These parameters are processed by weighting and scoring methods, then overlaid to produce a flood prone map. From the processing results, it is found that the rainfall parameter is dominated by rainfall of 1,500-2,000 mm / year with an area of 93,523.655 ha. The land use parameter is dominated by dry land agriculture with an area of 38,066,286 ha. The slope parameter is dominated by a slope of 25 - 40% with an area of 38490.715 ha. The land height parameter is dominated by the land height of 500 - 1000 m with an area of 68,030,334 ha. Soil texture parameters are dominated by medium soil texture with an area of 77,918,599 ha. There are 4 classes of flood vulnerability including very prone, prone, less prone, and not prone. Bandung Regency is dominated by the Less Prone class with an area of 64,277,228 ha. Areas belonging to the Very Prone class are in Katapang District, Margahayu, Dayeuh Kolot, Pameungpeuk, Bojong Soang, Margaasih, Rancaekek, Baleendah, Solokan Jeruk, Cangkuang, Kutawaringin, Soreang, Cicalengka, Banjaran, Cileunyi, Cikancung, Ciparay, Majalaya, Paseh, Arjasari, Cimaung, Rancabali, Pasir Jambu, Ciwidey, Ibun, and Nagreg. The area that has the largest percentage of flood-prone area per district is in Katapang District with a percentage of 95.06%, while the lowest percentage of areas that are very prone to flooding per district is in Nagreg District with a percentage of 0.01%. The validation results show that all sub-districts mentioned in the Flood Disaster Emergency Preparedness Map are areas classified as Very Prone class on the Flood Prone Map.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Kabupaten Bandung, Banjir, Parameter, Metode Pembobotan dan Skoring, Bandung Regency, Flood, Parameter, Weighting and Scoring Methods
Subjects: G Geography. Anthropology. Recreation > GB Physical geography > GB1399.9 Floods
T Technology > T Technology (General) > T174.5 Technology--Risk assessment.
T Technology > TC Hydraulic engineering. Ocean engineering > TC530 Flood control
Divisions: Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Geomatics Engineering > 29202-(S1) Undergraduate Thesis
Depositing User: Ian Hot Oloan Sitorus
Date Deposited: 02 Mar 2021 21:14
Last Modified: 02 Mar 2021 21:14
URI: https://repository.its.ac.id/id/eprint/82915

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