Optimal placement of tsunami sensors with depth constraint

Autor: Ikha Magdalena, Raynaldi La’lang, Renier Mendoza, Jose Ernie Lope
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: PeerJ Computer Science, Vol 7, p e685 (2021)
Druh dokumentu: article
ISSN: 2376-5992
DOI: 10.7717/peerj-cs.685
Popis: Tsunamis are destructive natural disasters that can cause severe damage to property and the loss of many lives. To mitigate the damage and casualties, tsunami warning systems are implemented in coastal areas, especially in locations with high seismic activity. This study presents a method to identify the placement of near-shore detection sensors by minimizing the tsunami detection time, obtained by solving the two-dimensional shallow water equations (SWE). Several benchmark tests were done to establish the robustness of the SWE model, which is solved using a staggered finite volume method. The optimization problem is solved using particle swarm optimization (PSO). The proposed method is applied to different test problems. As an application, the method is used to find the optimal location of a detection sensor using data from the 2018 Palu tsunami. Our findings show that detection time can be significantly reduced through the strategic placement of tsunami sensors.
Databáze: Directory of Open Access Journals