PEMANFAATAN TEKNOLOGI UAV UNTUK PERENCANAAN EVAKUASI BENCANA TSUNAMI DI SEBAGIAN WILAYAH KEPESISIRAN KOTA BENGKULU
Ela Novalinda Ar, Dr. Danang Sri Hadmoko, S.Si., M.Sc
2025 | Tesis | S2 Penginderaan Jauh
The use of UAV (Unmanned Aerial Vehicle) technology can provide a solution to address the challenges in tsunami modeling, particularly in providing high-resolution DEM (Digital Elevation Model) data. This technology offers advantages such as low operational costs, high accuracy, and the ability to conduct real-time monitoring. By utilizing UAV-derived data and integrating it with a numerical tsunami propagation model using COMCOT and GIS (Geographic Information System), it is expected to generate more accurate and effective evacuation planning in coastal areas. This study was conducted in the coastal areas of Bengkulu City, which faces the Indian Ocean subduction zone, near the Mentawai-Pagai and Mentawai-Enggano Megathrusts. The objectives of this research are: (i) to map the tsunami-affected areas in Bengkulu City based on a megathrust scenario using COMCOT numerical modeling, (ii) to analyze UAV data to assess the community's exposure to the tsunami hazard, and (iii) to plan the locations of Temporary Evacuation Shelters (TES) and effective evacuation routes. The methods used in this research include aerial image interpretation for DEM extraction, as well as land use and surface roughness analysis. Tsunami source modeling, based on a megathrust scenario, was conducted for tsunami hazard mapping using the COMCOT V.1.7 software. The results show that the inundation modeling based on the 2007 Bengkulu tsunami scenario demonstrated excellent accuracy with an RSR value of 0.96293, as well as a match in patterns and trends, with the modeling showing an inundated area of 473.303 hectares. Further modeling with the megathrust scenario resulted in a maximum runup of 10.2 meters, maximum inundation distance of 2.2 kilometers, and an inundated area of 1,112.7 hectares. UAV technology proved effective in supporting the planning of evacuation routes and TES locations, with a total of 23 evacuation routes and TES designed to ensure safe access for the community to shelters.
Kata Kunci : UAV, COMCOT, Tsunami, TES, Jalur Evakuasi Tsunami/UAV, COMCOT, Tsunami, TES, Tsunami Evacuation Routes