Pemodelan Genangan Tsunami Berdasarkan Skenario Ketinggian Gelombang dan Perubahan Lahan di Pesisir Kota Banda Aceh
DOI:
https://doi.org/10.25170/jpk.v3i03.7664Keywords:
Tsunami, Scenario, Hazard, Land Use, MangroveAbstract
This study analyzes tsunami inundation characteristics and coastal exposure in Banda Aceh City under 5 m, 15 m, and 30 m tsunami scenarios. It also evaluates the impact of land-use modification through an experimental conversion of aquaculture ponds into mangrove areas by adjusting surface roughness coefficients. A GIS-based approach was applied using remote sensing, topographic, and land-use data. Tsunami inundation was modeled using the Berryman equation considering surface slope and roughness. The results indicate that tsunami
propagation forms irregular inundation boundaries influenced by landuse variations. The land-use modification experiment shows that converting ponds into mangroves reduces inundation extent and residential exposure, particularly under the 30 m scenarios. These findings highlight the role of mangrove restoration in mitigating tsunami impacts in coastal areas.
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