Pemodelan Inundasi Dan Analisis Bahaya Tsunami Desa Sidoasri Kabupaten Malang

Putra, Nofendri Marsa (2023) Pemodelan Inundasi Dan Analisis Bahaya Tsunami Desa Sidoasri Kabupaten Malang. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Tsunami sebagai gelombang laut yang berbahaya memiliki efek dan dampak yang besar sehingga perlu memodelkan inundasi dan kecepatan tsunami untuk dapat mengetahui daerah berpotensi terkena tsunami. Dengan didapatkan pemodelan ini, maka dapat dilakukan pemetaan bahaya tsunami. Pemetaan bahaya tsunami penting untuk menentukan tingkat bahaya tsunami disuatu daerah. Penelitian dilakukan di Desa Sidoasri Kabupaten Malang dimana daerah ini berpotensi terkena tsunami karena dekat dengan zona subduksi di selatan pulau jawa. Prinsip pengolahan pada pemodelan tsunami menggunakan persamaan gelombang panjang atau persamaan air dangkal. Penelitian ini memerlukan data batimetri, DEM dan parameter gempa pemicu tsunami (lokasi episenter, magnitudo, panjang dan lebar sesar, strike, dip, dan slip). Pengolahan dilakukan menggunakan software COMCOT v1.7 dan MATLAB R2021b. Tahapan awal atau preprocessing berupa proses integrasi Data Batimetri dan DEM dan pembuatan layer. Tahapan processing dilakukan menggunakan COMCOT v1.7 dan MATLAB R2021B yang berupa pemodelan Inundasi Tsunami. Terakhir overlay dan layout dengan peta administrasi daerah penelitian . Hasil pemodelan menunjukan inundasi menutupi sebanyak 21.30 % dari luas desa sidoasri yang mencapai kedalaman maksimal 18.39 m dan kecepatan maksimal didaratan 10.66 m/s.
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Tsunami as a dangerous sea wave has a large effect and impact, so it is necessary to model the inundation and velocity of a tsunami to be able to identify areas that have the potential to be hit by a tsunami. With this modeling, a tsunami hazard search can be carried out. Tsunami hazard mapping is important to determine the level of tsunami hazard in an area. The research was conducted in Sidoasri Village, Malang Regency, where this area has the potential to be hit by a tsunami because it is close to a subduction zone in the south of Java Island. The processing principle in tsunami modeling uses buying and selling of long waves or selling of shallow water. This research requires bathymetry data, DEM and tsunami-triggering earthquake parameters (epicenter location, magnitude, fault length and width, strike, dip, and slip). Processing is done using COMCOT v1.7 Software and MATLAB R2021b. The initial stage or preprocessing is in the form of integration of bathymetry and DEM data and layer creation. The processing stage is carried out using COMCOT 1.7 and MATLAB R2021B in the form of Tsunami Inundation modeling. Lastly overlay and layout with the administrative map of the research area. The modeling results show that the inundation covers as much as 21.30% of the area of Sidoasri village which reaches a maximum depth of 18.39 m and a maximum speed on land of 10.66 m/s.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	COMCOT V1.7, Hazard, Inundation, Bahaya, Inundasi, Tsunami
Subjects:	H Social Sciences > HV Social pathology. Social and public welfare > HV551.5.I4 Hazard mitigation
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Geophysics Engineering > 33201-(S1) Undergraduate Thesis
Depositing User:	Nofendri Marsa Putra
Date Deposited:	10 Oct 2023 02:36
Last Modified:	10 Oct 2023 02:36
URI:	http://repository.its.ac.id/id/eprint/104038

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