Shoreline (MHHW) - East Babeldaob, Palau

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Shoreline referenced to local Mean Higher High Water (MHHW) derived from Malakal Harbor tide gauge observations obtained from the University of Hawaii Sea Level Center (UHSLC). The time series was detrended to remove sea level rise, and MHHW was computed as the average of the higher daily high waters over an 18.6-year tidal cycle centered around ~2001. The resulting MHHW is 0.65 m above mean sea level. High-resolution (1-m) topobathymetric lidar elevations from the Office of Palau Automated Land and Resources Information System (PALARIS) were first referenced to local mean sea level at Malakal Harbor using UHSLC benchmark information (https://uhslc.soest.hawaii.edu/stations/?stn=007#benchmarks). The shoreline was then defined relative to MHHW and post-processed to remove interpolation artifacts. This dataset covers the eastern (ocean-facing) sides of Babeldaob Island states, from Ngerechur Island (Ngarchelong State) southwards to Tabrengesang Park (Ngchesar State).

Data and resources

GeoServer

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PacIOOS: East Palau Wave-Driven Flooding With Sea Level Rise

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Open Researcher and Contributor ID (ORCID) Identifier

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Open Researcher and Contributor ID (ORCID) Identifier

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OGC-WFS

Open Geospatial Consortium Web Feature Service (WFS). Supported WFS versions include 1.0.0, 1.1.0, and 2.0.0. Supported output formats include CSV, GeoJSON,…

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Additional information

Date (creation)	2026-03-18
Date (issued)	2026-03-18
Date (revision)	2026-03-18
Status	onGoing
Update frequency	asNeeded
Metadata language	en
License	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.
Source metadata	ISO 19115 XML
Last updated	2026-11-04
Created	2026-11-04
API	package_show