slr_eastpalau Fatima-Zahra Mihami Assaf Azouri Douglas S. Luther 20260316 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. PacIOOS provides timely, reliable, and accurate ocean information to support a safe, clean, productive ocean and resilient coastal zone in the U.S. Pacific Islands region. 134.5993 134.6766 7.7678 7.4421 http://pacioos.org/metadata/browse/slr_eastpalau.png Sample image. PNG GCMD Science Keywords Earth Science Services > Models > Ocean General Circulation Models (OGCM)/Regional Ocean Models Earth Science Services > Models > Weather Research/Forecast Models Earth Science > Human Dimensions > Environmental Impacts Earth Science > Human Dimensions > Natural Hazards > Floods Earth Science > Oceans > Coastal Processes > Sea Level Rise Earth Science > Oceans > Ocean Waves > Wave Runup GCMD Platform Keywords Models/Analyses > > Models GCMD Instrument Keywords Not Applicable > Not Applicable CF Standard Name Table v39 flood_water_thickness longitude latitude height GCMD Location Keywords Ocean > Pacific Ocean > Western Pacific Ocean > Palau > Babeldaob None Use Limitation: The 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. University of Hawaii at Manoa Fatima-Zahra Mihami physical and mailing

Unknown fzmihami@hawaii.edu The Pacific Islands Ocean Observing System (PacIOOS) is funded through the National Oceanic and Atmospheric Administration (NOAA) as a Regional Association within the U.S. Integrated Ocean Observing System (IOOS). PacIOOS is coordinated by the University of Hawaii School of Ocean and Earth Science and Technology (SOEST). Pacific Islands Ocean Observing System (PacIOOS) physical and mailing

Unknown info@pacioos.org Unknown THREDDS OPeNDAP https://pae-paha.pacioos.hawaii.edu/thredds/dodsC/slr_eastpalau Open Geospatial Consortium Web Map Service (WMS) https://pae-paha.pacioos.hawaii.edu/thredds/wms/slr_eastpalau?service=WMS&version=1.3.0&request=GetCapabilities THREDDS NetCDF Subset Service https://pae-paha.pacioos.hawaii.edu/thredds/ncss/slr_eastpalau/dataset.html THREDDS Catalog This URL provides a catalog page for this dataset within THREDDS Data Server (TDS). https://pae-paha.pacioos.hawaii.edu/thredds/slr_mod.html?dataset=slr_eastpalau File Information This URL provides a standard OPeNDAP html interface for selecting data from this dataset. Change the extension to .info for a description of the dataset. https://pae-paha.pacioos.hawaii.edu/thredds/dodsC/slr_eastpalau.html PacIOOS East Babeldaob, Palau Wave-Driven Flooding With Sea Level Rise This URL provides a viewer and/or data access for this dataset. http://www.pacioos.hawaii.edu/shoreline/slr-eastpalau/ ERDDAP This URL provides a viewer and/or data access for this dataset. https://pae-paha.pacioos.hawaii.edu/erddap/griddap/slr_eastpalau Related URL This URL provides additional information related to this dataset in the following publication: Mihami, F.-Z. and V. Roeber. 2026. Exploring a conservative staggered scheme for Boussinesq-type equations: Insights into numerical diffusion, dispersion, and wave-breaking. Coastal Engineering 204. https://doi.org/10.1016/j.coastaleng.2025.104880 None specified 20260408 Fatima-Zahra Mihami University of Hawaii at Manoa mailing and physical Unknown fzmihami@hawaii.edu Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata FGDC-STD-012-2002