Unalaska, Alaska 8/15 Arc-second MHHW Coastal Digital Elevation Model
NOAA's National Geophysical Data Center (NGDC) is building high-resolution digital elevation models (DEMs) to support individual coastal States as part of the National Tsunami Hazard Mitigation Program's (NTHMP) efforts to improve community preparedness and hazard mitigation. These integrated bathymetric-topographic DEMs are used to support tsunami and coastal inundation mapping. 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 various vertical and horizontal datums depending on the specific modeling requirements of each State. For specific datum information on each DEM, refer to the
appropriate DEM documentation. Cell sizes also vary depending on the specification required by modelers in each State, but typically range from 8/15 arc-second (~16 meters) to 8 arc-seconds (~240 meters).
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | non-public |
| contactPoint |
{
"fn": "NOAA National Centers for Environmental Information",
"@type": "vcard:Contact",
"hasEmail": "mailto:dem.info@noaa.gov"
}
|
| describedByType | application/octet-steam |
| description | NOAA's National Geophysical Data Center (NGDC) is building high-resolution digital elevation models (DEMs) to support individual coastal States as part of the National Tsunami Hazard Mitigation Program's (NTHMP) efforts to improve community preparedness and hazard mitigation. These integrated bathymetric-topographic DEMs are used to support tsunami and coastal inundation mapping. 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 various vertical and horizontal datums depending on the specific modeling requirements of each State. For specific datum information on each DEM, refer to the appropriate DEM documentation. Cell sizes also vary depending on the specification required by modelers in each State, but typically range from 8/15 arc-second (~16 meters) to 8 arc-seconds (~240 meters). |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "DEM text search",
"mediaType": "placeholder/value",
"description": "Text search for locating completed and planned DEMs.",
"downloadURL": "https://www.ngdc.noaa.gov/mgg/coastal",
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{
"@type": "dcat:Distribution",
"title": "DSMR Publication at the NOAA Institutional Repository",
"mediaType": "placeholder/value",
"description": "Report documenting the Scientific Data Stewardship Maturity for this dataset.",
"downloadURL": "https://doi.org/10.25923/80s8-7q41",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "Bathymetric Data Viewer",
"mediaType": "placeholder/value",
"description": "The Bathymetric Data Viewer is an interactive map providing discovery, descriptions, and download capability for bathymetric survey data and digital elevation models archived at NOAA's National Centers for Environmental Information (NCEI).",
"downloadURL": "https://www.ncei.noaa.gov/maps/bathymetry/",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "Digital Elevation Model of Unalaska, Alaska: Procedures, Data Sources and Analysis",
"mediaType": "placeholder/value",
"description": "Report describing the development of the Unalaska DEM",
"downloadURL": "https://www.ngdc.noaa.gov/mgg/dat/dems/regional_tr/unalaska_815_mhhw_2012.pdf",
"describedByType": "application/octet-steam"
},
{
"@type": "dcat:Distribution",
"title": "GCMD Keyword Forum Page",
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"description": "Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords",
"downloadURL": "https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords",
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|
| identifier | gov.noaa.ngdc.mgg.dem:4270 |
| isPartOf | NTHMP DEM Project |
| issued | 2012-10-16T00:00:00.000+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 > 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",
"Coastal Relief",
"Gridded elevations",
"Integrated bathymetry and topography",
"Continent > North America > United States of America > Alaska",
"Ocean > Pacific Ocean > North Pacific Ocean",
"Vertical Location > Land Surface",
"Vertical Location > Sea Floor",
"Unalaska",
"Iliuliuk Bay",
"Dutch Harbor",
"Aleutian Islands",
"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 | 2012-10-16T00:00:00.000+00:00 |
| publisher |
{
"name": "NOAA National Centers for Environmental Information",
"@type": "org:Organization"
}
|
| references |
[
"https://doi.org/10.25923/80s8-7q41",
"https://www.ncei.noaa.gov/maps/bathymetry/",
"https://www.ngdc.noaa.gov/mgg/dat/dems/regional_tr/unalaska_815_mhhw_2012.pdf"
]
|
| rights | otherRestrictions |
| spatial | -166.42,53.8,-166.66,53.95 |
| temporal | 1934-01-01T00:00:00+00:00/2012-08-01T00:00:00+00:00 |
| title | Unalaska, Alaska 8/15 Arc-second MHHW Coastal Digital Elevation Model |
