San Francisco Bay, California 1/3 arc-second MHW Coastal Digital Elevation Model
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 the vertical tidal datum of North American Vertical Datum of 1988 (NAVD 88) or Mean High Water (MHW) and horizontal datum of World Geodetic System 1984 (WGS84). Cell size for the DEMs ranges from 1/3 arc-second (~10 meters) to 3 arc-seconds (~90 meters).
Resources
2 resources available
-
tl_2025_48317_linearwater.zip
ZIP -
tl_2025_linearwater.shp.ea.iso.xml
XML
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | non-public |
| contactPoint |
{
"fn": "Not provided - Contact data.gov",
"hasEmail": "mailto:datagovsupport@gsa.gov"
}
|
| describedByType | application/octet-steam |
| 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 the vertical tidal datum of North American Vertical Datum of 1988 (NAVD 88) or Mean High Water (MHW) and horizontal datum of World Geodetic System 1984 (WGS84). Cell size for the DEMs ranges from 1/3 arc-second (~10 meters) to 3 arc-seconds (~90 meters). |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "tl_2025_48317_linearwater.zip",
"format": "ZIP",
"mediaType": "application/zip",
"description": "The TIGER/Line Shapefiles are the fully supported, core geographic product from the U.S. Census Bureau. They are extracts of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File/Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) System.",
"downloadURL": "https://www2.census.gov/geo/tiger/TIGER2025/LINEARWATER/tl_2025_48317_linearwater.zip",
"describedByType": "application/octet-stream"
},
{
"@type": "dcat:Distribution",
"title": "tl_2025_linearwater.shp.ea.iso.xml",
"format": "XML",
"mediaType": "application/xml",
"description": "Entity and attribute file",
"downloadURL": "https://meta.geo.census.gov/data/existing/decennial/GEO/GPMB/TIGERline/Current_19110/tl_2025_linearwater.shp.ea.iso.xml",
"describedByType": "application/octet-stream"
}
]
|
| identifier | https://data.noaa.gov/waf/NOAA/NESDIS/NGDC/MGG/DEM/iso/xml/417.xml |
| issued | 2025-01-01T00:00:00.000+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",
"DTM > Digital Terrain 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 > California",
"Ocean > Pacific Ocean > North Pacific Ocean",
"Vertical Location > Land Surface",
"Vertical Location > Sea Floor",
"San Francisco Bay",
"Oakland",
"Palo Alto",
"Bodega Bay",
"Tomalas Bay",
"San Pablo Bay",
"San Mateo",
"San Francisco County",
"Central California",
"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 | 2010-07-20T00:00:00.000+00:00 |
| publisher |
{
"name": "NOAA National Centers for Environmental Information",
"@type": "org:Organization"
}
|
| rights | otherRestrictions |
| spatial | -101.688656,32.086765,-102.21127,32.525325 |
| temporal | 2025-06-01T00:00:00+00:00/2026-10-01T00:00:00+00:00 |
| title | San Francisco Bay, California 1/3 arc-second MHW Coastal Digital Elevation Model |
