Key West, Florida 1/3 Arc-second NAVD 88 Coastal Digital Elevation Model

Metadata Updated: February 8, 2018

NOAA's National Geophysical Data Center (NGDC) is building high-resolution digital elevation models (DEMs) for select U.S. coastal regions. These integrated bathymetric-topographic DEMs are used to support tsunami forecasting and modeling efforts at the NOAA Center for Tsunami Research, Pacific Marine Environmental Laboratory (PMEL). The DEMs are part of the tsunami forecast system SIFT (Short-term Inundation Forecasting for Tsunamis) currently being developed by PMEL for the NOAA Tsunami Warning Centers, and are used in the MOST (Method of Splitting Tsunami) model developed by PMEL to simulate tsunami generation, propagation, and inundation. Bathymetric, topographic, and shoreline data used in DEM compilation are obtained from various sources, including NGDC, the U.S. National Ocean Service (NOS), the U.S. Geological Survey (USGS), the U.S. Army Corps of Engineers (USACE), the Federal Emergency Management Agency (FEMA), and other federal, state, and local government agencies, academic institutions, and private companies. DEMs are referenced to the vertical tidal datum of Mean High Water (MHW) and horizontal datum of World Geodetic System 1984 (WGS84). Grid spacings for the DEMs range from 1/3 arc-second (~10 meters) to 3 arc-seconds (~90 meters).

Access & Use Information

Downloads & Resources


Metadata Date November 13, 2017
Metadata Created Date September 26, 2015
Metadata Updated Date February 8, 2018
Reference Date(s) September 1, 2011 (publication)
Frequency Of Update asNeeded

Metadata Source

Harvested from NOAA CSW Harvest Source

Graphic Preview

Perspective view of DEM

Additional Metadata

Resource Type Dataset
Metadata Date November 13, 2017
Metadata Created Date September 26, 2015
Metadata Updated Date February 8, 2018
Reference Date(s) September 1, 2011 (publication)
Responsible Party DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce (Point of Contact)
Contact Email
Access Constraints Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Bbox East Long -81.27
Bbox North Lat 25.02
Bbox South Lat 23.98
Bbox West Long -82.18
Coupled Resource
Frequency Of Update asNeeded
Graphic Preview Description Perspective view of DEM
Graphic Preview File,23.98,-81.27,25.02&size=300,300&format=png32&interpolation=%20RSP_BilinearInterpolation&renderingRule=%7B%22rasterFunction%22:%22ColorHillshade%22%7D&f=image
Graphic Preview Type JPEG
Guid gov.noaa.ngdc.mgg.dem:3121
Harvest Object Id 04ef0837-a5f6-4468-aaaa-cd81175fab23
Harvest Source Id 2aed8e29-fc5b-4cde-aa66-fb1118fd705e
Harvest Source Title NOAA CSW Harvest Source
Licence Not to be used for navigation. Although these data are of high quality and useful for planning and modeling purposes, they are not suitable for navigation. For navigation, please refer to the NOS nautical chart series., Produced by the NOAA National Geophysical Data Center. Not subject to copyright protection within the United States.
Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type ArcGIS Image Service
Spatial Reference System urn:ogc:def:crs:EPSG::4326
Spatial Harvester True
Temporal Extent Begin 1852-01-01
Temporal Extent End 2011-01-01

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