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Sea Level Rise Inundation: 2-ft Scenario: Honolulu, Hawaii

Metadata Updated: June 3, 2023

This map shows coastal flooding around Honolulu, Hawaii due to 2 feet (0.610 m) of sea level rise. This scenario was derived using a National Geospatial Agency (NGA)-provided digital elevation model (DEM) based on LiDAR data of the Honolulu area collected in 2009. This "bare earth" DEM (vegetation and structures removed) was used to represent the current topography of the study area above zero elevation for the urban corridor stretching from Honolulu International Airport to Waikiki and Diamond Head along the south shore of Oahu. The accuracy of the DEM was validated using a selection of 16 Tidal Benchmarks located within the study area. The single value tidal water surface of mean higher high water (MHHW) modeled at the Honolulu tide gauge was used to represent sea level for the purposes of this study. Water levels are shown as they would appear during the highest high tides (excluding wind-driven tides).

Data produced in 2014 by Dr. Charles "Chip" Fletcher of the department of Geology & Geophysics (G&G) in the School of Ocean and Earth Science and Technology (SOEST) of the University of Hawaii at Manoa. Supported in part by the NOAA Coastal Storms Program (CSP) and the University of Hawaii Sea Grant College Program. These data do not consider future changes in coastal geomorphology and natural processes such as erosion, subsidence, or future construction. These data do not specify timing of inundation depths and are not appropriate for conducting detailed spatial analysis. The entire risk associated with the results and performance of these data is assumed by the user. These data should be used strictly as a planning reference and not for navigation, permitting, or other legal purposes.

Access & Use Information

License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources


Metadata Date March 30, 2021
Metadata Created Date November 12, 2020
Metadata Updated Date June 3, 2023
Reference Date(s) September 26, 2014 (creation), September 26, 2014 (issued), September 26, 2014 (revision)
Frequency Of Update

Metadata Source

Harvested from ioos

Graphic Preview

Sample image.

Additional Metadata

Resource Type Dataset
Metadata Date March 30, 2021
Metadata Created Date November 12, 2020
Metadata Updated Date June 3, 2023
Reference Date(s) September 26, 2014 (creation), September 26, 2014 (issued), September 26, 2014 (revision)
Responsible Party University of Hawaii at Manoa (Point of Contact)
Contact Email
Guid hi_csp_hono_slr2ft
Access Constraints
Bbox East Long -157.783233642578
Bbox North Lat 21.358419418335
Bbox South Lat 21.2548732757568
Bbox West Long -157.968643188477
Coupled Resource [{"title": [], "href": ["#DataIdentification"], "uuid": []}, {"title": [], "href": ["#DataIdentification"], "uuid": []}]
Frequency Of Update
Graphic Preview Description Sample image.
Graphic Preview File
Harvest Object Id 9f2da3ef-cb4e-4c84-8e45-07608cc90f92
Harvest Source Id 54e15a6e-6dde-4c9c-a8f0-345cc0dfccfb
Harvest Source Title ioos
Lineage 2014-09-26T00:00:00Z OGC web services (WMS and WFS) enabled by PacIOOS via GeoServer. Original data from source provider may have been reformatted, reprojected, or adjusted in other ways to optimize these capabilities.
Metadata Language eng
Metadata Type geospatial
Old Spatial {"type": "Polygon", "coordinates": [[[-157.968643188477, 21.2548732757568], [-157.783233642578, 21.2548732757568], [-157.783233642578, 21.358419418335], [-157.968643188477, 21.358419418335], [-157.968643188477, 21.2548732757568]]]}
Spatial Data Service Type Open Geospatial Consortium Web Feature Service (WFS)
Spatial Reference System
Spatial Harvester True

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