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Jeux de données / Pacific Islands Ocean Observing System (PacIOOS)

Wave-Driven Sea Level Rise Inundation: Palau: East Babeldaob

Niveau marinÉtat de la mer

This dataset presents high-resolution simulations of wave-driven coastal flooding under sea level rise (SLR) along the eastern coast of Babeldaob Island, Palau. The study area extends from Ngerechur Island (Ngarchelong State) to Tabrengesang Park (Ngchesar State). Flood depths were computed using a Boussinesq-type phase-resolving model (BARRACUDA: Boussinesq Approach for Rapid Runup Assessment with CUDA; Mihami and Roeber, 2026), which simulates inundation over land under combined wave forcing and SLR. Three wave scenarios are included: (a) no wave flooding (static or "bathtub" flooding), (b) annual high wave flooding (representative of recurring energetic wave conditions), and (c) maximum wave flooding (extreme event based on Typhoon Bopha, 2012). All cases are evaluated across SLR increments from 0 to 10 ft (3 m) in 1-ft steps. To assess mangrove attenuation effects, each simulation is run with and without mangrove forests, resulting in 55 total layers. Wave simulations were conducted over a digital elevation model (DEM) derived from 1-m topobathymetric lidar data from the Palau Automated Land and Resources Information System (PALARIS), resampled to a 5-m by 5-m grid resolution for computational efficiency. Flood depths are referenced to Mean Higher High Water (MHHW), derived from tide gauge observations at Malakal, Koror (accessed from the University of Hawaii Sea Level Center (UHSLC)), which also serves as the background water level in the simulations.

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Informations supplémentaires

Date (creation)2026-03-16
Date (issued)2026-03-16
Date (revision)2026-03-16
StatutonGoing
Fréquence de mise à jourasNeeded
Langue des métadonnéesen
LicenceThe data may be used and redistributed for free but is not intended for legal use, since it may contain inaccuracies. Neither the data Contributor, University of Hawaii, PacIOOS, NOAA, State of Hawaii nor the United States Government, nor any of their employees or contractors, makes any warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, or assumes any legal liability for the accuracy, completeness, or usefulness, of this information.
Métadonnées sourcesISO 19115 XML
Dernière mise à jour2026-11-04
Créé2026-11-04
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