KONTROL GEOMORFOLOGI TERHADAP RISIKO BANJIR PADA SUB DAS KIKIM DENGAN METODE JARINGAN BAYESIAN KABUPATEN LAHAT, SUMATERA SELATAN

DIFTI, IVANA ARUM and Setiawan, Budhi (2024) KONTROL GEOMORFOLOGI TERHADAP RISIKO BANJIR PADA SUB DAS KIKIM DENGAN METODE JARINGAN BAYESIAN KABUPATEN LAHAT, SUMATERA SELATAN. Undergraduate thesis, Sriwijaya University.

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Abstract

The research area is in the Kikim Sub-watershed, Lahat Regency, South Sumatra. The definition of a DAS (River Watershed) is an area that functions as a place to receive rain water, accommodate, store, and channel the main river to a lake or sea; in other words, it is a place fora river area management system. The identification uses a geomorphological approach, especially in morphogenesis, such as river terraces, natural embankments, flood plains, back swamps, alluvial fans, deltas, and land forms with flat topography. From this, the area frequently and has a high potential for flooding according to the characteristics of floods. One aspect of geomorphology, which is one of the factors influencing the occurrence of floods, is that it can be seen from the morphometric characteristics of the watershed, morphometric parameters, and land use when combined, can analyze flood disasters in an area. The appearance of a winding river meander, which occurs dynamically and is influenced by the slope, land use, and the intensity of rainfall, can also be one aspect of flooding. This research aims to identify how geomorphology controls the occurrence of flooding using the Bayesian Network method in the Kikim Sub-watershed. From the research results, geomorphological aspects were obtained, namely in the form of Channel Bar (CB), Channel Irregular Meander (CIM), Slightly Steep Denudational Hills (PAD), Steep Denudational Hills (PCD), Flood Plains (DB). Then, the morphological elevation aspect of the research area is in the form of plains and low hills, with the resulting slopes being flat to steep and predominantly flat to sloping. The results of the Bayesian Network analysis show that the area experiencing the risk of flooding is at node 3, with a probability value of flooding of 65.1%, node 2 has a probability value of 59.1%, and node 1 has a probability value of 37.7%. %. So that disaster mitigation can be maximized at node 3 or predominantly located in Gumay Talang District.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Sub DAS Kikim, Geomorfologi, Metode Jaringan Bayesian, Banjir, Netica.
Subjects:	Q Science > QE Geology Q Science > QE Geology > QE1-996.5 Geology T Technology > TA Engineering (General). Civil engineering (General) > TA703-712 Engineering geology. Rock mechanics. Soil mechanics.Underground construction
Divisions:	03-Faculty of Engineering > 34201-Geological Engineering (S1)
Depositing User:	Ivana Arum Difti
Date Deposited:	25 Jul 2024 02:46
Last Modified:	25 Jul 2024 02:46
URI:	http://repository.unsri.ac.id/id/eprint/153084

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