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Kachemak Bay, Alaska 1/3 arc-second MHW Coastal Digital Elevation Model

Published by NOAA National Centers for Environmental Information | U.S. Census Bureau, Department of Commerce | Catalog Last Checked: May 05, 2026 at 11:25 PM | Dataset Last Updated: December 07, 2010 at 12:00 AM
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 warning 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 a variety of vertical datums and horizontal datum of World Geodetic System of 1984 (WGS84). Cell size for the DEMs ranges from 1/3 arc-second (~10 meters) to 3 arc-seconds (~90 meters).

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Earth Science > Oceans > Bathymetry/Seafloor Topography > Seafloor Topography Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry Earth Science > Oceans > Bathymetry/Seafloor Topography > Water Depth Earth Science > Land Surface > Topography > Terrain Elevation Earth Science > Land Surface > Topography > Terrain Elevation > Topographical Relief Maps Earth Science > Oceans > Coastal Processes > Coastal Elevation Models/Analyses > DEM > Digital Elevation Model ICSU-WDS > International Council for Science - World Data System

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description 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 warning 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 a variety of vertical datums and horizontal datum of World Geodetic System of 1984 (WGS84). Cell size for the DEMs ranges from 1/3 arc-second (~10 meters) to 3 arc-seconds (~90 meters).
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identifier https://meta.geo.census.gov/data/existing/decennial/GEO/GPMB/TIGERline/Current_19115/tl_2025_48257_addrfeat.shp.iso.xml
isPartOf NOAA Tsunami Inundation Gridding Project
issued 2010-12-07T00:00:00.000+00:00
keyword 
                                            [
  "Earth Science > Oceans > Bathymetry/Seafloor Topography > Seafloor Topography",
  "Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry",
  "Earth Science > Oceans > Bathymetry/Seafloor Topography > Water Depth",
  "Earth Science > Land Surface > Topography > Terrain Elevation",
  "Earth Science > Land Surface > Topography > Terrain Elevation > Topographical Relief Maps",
  "Earth Science > Oceans > Coastal Processes > Coastal Elevation",
  "Models/Analyses > DEM > Digital Elevation Model",
  "ICSU-WDS > International Council for Science - World Data System",
  "NOAA OneStop Project",
  "1 meter - < 30 meters",
  "< 1 meter",
  "Coastal Relief",
  "Gridded elevations",
  "Integrated bathymetry and topography",
  "Continent > North America > United States of America > Alaska",
  "Ocean > Pacific Ocean",
  "Vertical Location > Land Surface",
  "Vertical Location > Sea Floor",
  "Kachemak Bay",
  "Seldovia",
  "Anchor Point",
  "Homer",
  "DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce",
  "DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce"
]
language 
                                            []
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2010-12-07T00:00:00.000+00:00
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references 
                                            [
  "https://doi.org/10.25923/8q86-a075",
  "https://www.ncei.noaa.gov/maps/bathymetry/",
  "https://www.ngdc.noaa.gov/mgg/dat/dems/regional_tr/kachemak_bay_13_mhw_2010.pdf"
]
rights otherRestrictions
spatial -150.89,59.32,-152.1,59.82
temporal 1915-01-01T00:00:00+00:00/2010-01-01T00:00:00+00:00
title Kachemak Bay, Alaska 1/3 arc-second MHW Coastal Digital Elevation Model

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