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Metadata Identifier: gov.noaa.ngdc.mgg.dem:417

Aggregation Info | Bands | Citations | Constraints | Coverage Descriptions | Dimensions | Extents | Formats | Geographic Bounding Box
Georectified Information | Georeferenceable Information | Identifiers | Instruments | Mediums | OnlineResources | Operations
Platforms | Process Steps | Range Elements | Reference Systems | Responsible Parties | Series | Sources | Spatial Grids | Temporal Extents

MD_DataIdentification

Count Component Title Abstract
1 San Francisco Bay, California 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).
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SV_Identification

Count Component Title Type
1 Footprints ArcGIS Map Service Digital Elevation Model Footprints ArcGIS Map Service ArcGIS Map Service
1 Color Shaded Relief ArcGIS Map Service Digital Elevation Models: Color Shaded Relief ArcGIS Image Service ArcGIS Image Service
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CI_Citation

Count Component Title Date Citation Identifier
1 CSUMB Multibeam Swath Sonar Surveys
  • 2008-01-01
1 Digital Elevation Model Footprints ArcGIS Map Service
  • 2011-02-15
1 Digital Elevation Models of Central California and San Francisco Bay, California: Procedures, Data Sources, and Analysis
  • 2010-07-20
1 Digital Elevation Models: Color Shaded Relief ArcGIS Image Service
  • 2011-10-19
1 Electronic Navigational Charts
  • 2008-01-01
1 GeoEarthScope Northern California lidar
  • 2007-01-01
1 Mean High Water height
  • 2012-08-05
1 NASA/GCMD Data Center Keywords
    1 NASA/GCMD Data Resolution Keywords
      1 NASA/GCMD Earth Science Keywords
        1 NASA/GCMD Location Keywords
          1 NASA/GCMD Platform Keywords
            2 NASA/Global Change Master Directory (GCMD) Earth Science Services Keywords NASA/GCMD Services Keywords
              1 NOAA Tsunami Inundation Gridding Project
              • 2008-10-31
              1 NOS Hydrographic Surveys
              • 2009-01-01
              1 National Center for Airborne Laser Mapping lidar
              • 2007-01-01
              1 North and Central San Francisco Bay Lidar
              • 2004-01-01
              1 Sacramento - San Joaquin River Delta lidar
              • 2007-01-01
              1 San Francisco Bay, California Coastal Digital Elevation Model
              • 2010-07-20
              1 USACE Hydrographic Surveys
              • 2009-01-01
              1 USGS NED topography
              • 2008-01-01
              2 Uncontrolled
                1 VDatum software v. 2.2.7
                • 2009-01-01
                1 World Geodetic System 1984
                • 2007-08-27
                1 uncontrolled
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                  CI_Series

                  Count Component Name Issue Identification Page
                  1 NOAA Tsunami Inundation DEMs San Francisco Bay, California MHW
                  1 NOAA Tsunami Inundation DEMs Named by primary coastal city, state in DEM.
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                  CI_ResponsibleParty

                  Count Component Individual Organization Position Email Role Linkage
                  2 resourceProvider http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::4326
                  15 Citation URL http://www.ngdc.noaa.gov/dem/squareCellGrid/download/417
                  2 GCMD Valids custodian http://gcmd.nasa.gov/learn/keyword_list.html
                  1 Barry W. Eakins originator
                  1 Barry Eakins Barry W. Eakins DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Research Scientist Barry.Eakins@noaa.gov pointOfContact
                  1 California Department of Water Resources (CA DWR) originator
                  1 California State University at Monterey Bay, Seafloor Mapping Lab originator
                  6 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, Department of Commerce publisher http://ngdc.noaa.gov/mgg/coastal/coastal.html
                  3 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce publisher
                  3 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce originator
                  2 DEM Info DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce DEM Information dem.info@noaa.gov pointOfContact
                  1 DOC/NOAA/NOS National Ocean Service, NOAA, U.S. Department of Commerce originator
                  1 DOC/NOAA/NOS/OCS > Office of Coast Survey, National Ocean Service, NOAA, U.S. Department of Commerce originator
                  1 DOC/NOAA/OAR/PMEL/NCTR > NOAA Center for Tsunami Research, Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce originator
                  1 DOI/USGS > U.S. Geological Survey, Department of the Interior originator
                  1 Dorothy Z. Friday originator
                  1 Elliot Lim originator
                  2 EPSG Registry European Petroleum Survey Group publisher http://www.epsg-registry.org/
                  1 Federal Emergency Management Agency (FEMA) originator
                  1 GEON originator
                  2 Varner, Jesse Jesse Varner DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Jesse.Varner@noaa.gov pointOfContact
                  2 Kelly Carignan Kelly Carignan DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce kelly.carignan@noaa.gov pointOfContact
                  1 Kelly S. Carignan originator
                  1 Lisa A. Taylor originator
                  2 GCMD User Support Office NASA GCMD User Support Office gcmduso@gcmd.gsfc.nasa.gov custodian http://gcmd.nasa.gov/MailComments/MailComments.jsf?rcpt=gcmduso
                  1 NCALM originator
                  1 Pamela R. Grothe originator
                  1 Robert J. Caldwell originator
                  1 U.S. Army Corps of Engineers, San Francisco District originator
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                  CI_OnlineResource

                  Count Component Linkage Name Description Function
                  1 http://calm.geo.berkeley.edu/ncalm/ddc.html NCALM topographic lidar Digital database topographic lidar datasets download
                  2 http://gcmd.nasa.gov/MailComments/MailComments.jsf?rcpt=gcmduso GCMD Feedback Form Have a Comment for the GCMD? information
                  2 GCMD Keyword Page http://gcmd.nasa.gov/learn/keyword_list.html GCMD Keywords Page This page describes the NASA GCMD Keywords, how to reference those keywords and provides download instructions. information
                  2 http://gis.ngdc.noaa.gov/arcgis/rest/services/dem_hillshades/ImageServer Digital Elevation Models: Color Shaded Relief ArcGIS Image Service REST endpoint for Digital Elevation Models: Color Shaded Relief ArcGIS image service search
                  1 http://gis.ngdc.noaa.gov/arcgis/services/dem_hillshades/ImageServer/WMSServer?request=GetCapabilities%26service=WMS Digital Elevation Models: Color Shaded Relief Web Map Service (WMS) Capabilities document for Open Geospatial Consortium Web Map Service for Digital Elevation Models: Color Shaded Relief search
                  2 http://maps.ngdc.noaa.gov/arcgis/rest/services/web_mercator/dem_extents/MapServer DEM Footprints ArcGIS Map Service A map service showing the location and coverage of land and seafloor digital elevation models (DEMs) available from NOAA's National Geophysical Data Center. search
                  1 http://maps.ngdc.noaa.gov/soap/web_mercator/dem_extents/MapServer/WMSServer?request=GetCapabilities%26service=WMS Digital Elevation Model Footprints Web Map Service (WMS) Capabilities document for Open Geospatial Consortium Web Map Service for Digital Elevation Model Footprints search
                  1 http://ned.usgs.gov/ USGS National Elevation Dataset Digital database of U.S. topography, in raster form (DEM) download
                  2 http://ngdc.noaa.gov/mgg/coastal/coastal.html Integrated Models of Coastal Relief at NGDC Please see NGDC's website for more information about Coastal DEMs at NGDC. information
                  1 http://noaa.maps.arcgis.com/home/item.html?id=d41f39c8a6684c54b62c8f1ab731d5ad NOAA GeoPlatform Entry for Digital Elevation Model Footprints NOAA GeoPlatform listing for Digital Elevation Model Footprints ArcGIS Map Service information
                  1 http://noaa.maps.arcgis.com/home/item.html?id=feb3c625dc094112bb5281c17679c769 NOAA GeoPlatform Entry for Digital Elevation Models: Color Shaded Relief NOAA GeoPlatform listing for Digital Elevation Models: Color Shaded Relief information
                  1 http://seafloor.csumb.edu/SFMLwebDATA.htm California State University at Monterey Bay, Seafloor Mapping Lab Multibeam swath sonar surveys for Monterey Bay download
                  1 http://vdatum.noaa.gov/welcome.html VDatum Vertical Datum Transformation tool download
                  1 http://www.deltavision.ca.gov/index.shtml California Department of Water Resources, DeltaVision Project website for CA DWR download
                  2 http://www.epsg-registry.org/ European Petroleum Survey Group Geodetic Parameter Registry Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations. search
                  1 http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::4326 WGS 84 GML of World Geodetic System 1984 coordinate reference system. information
                  1 http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:datum:EPSG::5868 MHW height GML for Mean High Water height available at the epsg-registry. information
                  1 http://www.geongrid.org/ GEON topographic lidar Digital database topographic lidar datasets download
                  1 http://www.nauticalcharts.noaa.gov/mcd/enc/index.htm OCS Electronic Navigational Charts Digital database of NOAA nautical chart information. download
                  2 http://www.ngdc.noaa.gov/dem/squareCellGrid/download/417 San Francisco Bay, CA 1/3 arc-second MHW Tsunami Inundation DEM Download page for accessing DEM, metadata record and development report. download
                  1 http://www.ngdc.noaa.gov/dem/squareCellGrid/getArchive/417?gridFormat=ESRI+Arc+ASCII San Francisco Bay, California Coastal Digital Elevation Model ASCII DEM Download DEM, metadata and readme file. download
                  1 http://www.ngdc.noaa.gov/dem/squareCellGrid/getReport/417 Digital Elevation Models of Central California and San Francisco Bay, California: Procedures, Data Sources and Analysis Report describing the development of the Central California and San Francisco Bay, California DEMs download
                  2 DEM Map Search http://www.ngdc.noaa.gov/dem/squareCellGrid/map Map Interface Graphic geo-spatial search tool for locating completed and planned DEMs. search
                  2 DEM Text Search http://www.ngdc.noaa.gov/dem/squareCellGrid/search DEM text search tool Text search tool for locating completed and planned DEMs. search
                  1 http://www.ngdc.noaa.gov/mgg/bathymetry/hydro.html NOS Hydrographic Survey Database Digital database of NOS hydrographic surveys that date back to the late 19th century. download
                  2 http://www.ngdc.noaa.gov/mgg/inundation/tsunami/inundation.html NOAA Tsunami Inundation Gridding Project Project web page. information
                  1 http://www.spn.usace.army.mil/index.html USACE San Francisco District Hydrographic Surveys Digital database of hydrographic surveys in San Francisco District download
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                  MD_Identifier or RS_Identifier

                  Count Component Code
                  1 Digital Elevation Model
                  1 Tsunami Inundation Gridding Project
                  1 urn:ogc:def:crs:EPSG::4326
                  1 urn:ogc:def:datum:EPSG::5868
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                  EX_Extent

                  Bounding Box Temporal Extent
                  Count Component Description West East North South Start End
                  1 -123.30 -121.85 38.48 37.32 1922-01-01 2009-01-01
                  2 -180 180 90 -90
                  1 1922-01-01 2000-01-01
                  1 2001-01-01 2007-01-01
                  1
                  2
                  1 2006-01-01 2008-01-01
                  2
                  1 2003-01-01 2006-01-01
                  1
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                  EX_GeographicBoundingBox

                  Count Component West East North South
                  1 -123.30 -121.85 38.48 37.32
                  2 -180 180 90 -90
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                  EX_TemporalExtent

                  Count Component Start End
                  1 1922-01-01 2009-01-01
                  1 1922-01-01 2000-01-01
                  1 2001-01-01 2007-01-01
                  6
                  1 2006-01-01 2008-01-01
                  1 2003-01-01 2006-01-01
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                  MD_Format

                  Count Component Name Version specification
                  1 ESRI Arc ASCII 1 ASCII text version of ESRI ArcGIS raster format
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                  MD_Medium

                  none found
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                  MD_Constraints

                  Count Component Use Limitation
                  1 not for navigation 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.
                  1 copyright statement Produced by the NOAA National Geophysical Data Center. Not subject to copyright protection within the United States.
                  2 These data 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 official navigation products, please refer to the U.S. nautical charts available from the NOAA Office of Coast Survey: http://www.nauticalcharts.noaa.gov.
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                  MD_ReferenceSystem

                  Count Component Code Authority Title
                  1 WGS84 urn:ogc:def:crs:EPSG::4326 World Geodetic System 1984
                  1 MHW urn:ogc:def:datum:EPSG::5868 Mean High Water height
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                  MD_GridSpatialRepresentation

                  Count Component Number of Dimensions Cell Geometry Code
                  1 3 area
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                  MD_Georeferenceable or MI_Georeferenceable

                  none found
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                  MD_Georectified or MI_Georectified

                  none found
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                  MD_Dimension

                  Count Component Name Code Size
                  1 row 12529
                  1 column 15661
                  1 vertical 1
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                  MD_CoverageDescription or MI_CoverageDescription

                  none found
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                  MD_Band or MI_Band

                  none found
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                  MI_RangeElementDescription

                  none found
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                  MD_AggregateInformation

                  Count Component Title Code Association Type Code
                  1 Digital Elevation Models of Central California and San Francisco Bay, California: Procedures, Data Sources, and Analysis crossReference
                  1 NOAA Tsunami Inundation Gridding Project largerWorkCitation
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                  LE_Source or LI_Source

                  Count Component Title Date Description
                  1 CSUMB Multibeam Swath Sonar Surveys 2008-01-01 Source Contribution: Multibeam surveys for California Coastal Mapping Project ; Source Type: online
                  1 Electronic Navigational Charts 2008-01-01 Source Contribution: coastline and bathymetric sounding data ; Source Type: online
                  1 GeoEarthScope Northern California lidar 2007-01-01 Source Contribution: topographic lidar ; Source Type: online
                  1 NOS Hydrographic Surveys 2009-01-01 Source Contribution: hydrographic surveys downloaded from web site. ; Source Type: online
                  1 National Center for Airborne Laser Mapping lidar 2007-01-01 Source Contribution: topographic lidar of Napa Watershed and Lone Tree Creek ; Source Type: online
                  1 North and Central San Francisco Bay Lidar 2004-01-01 Source Contribution: topographic lidar ; Source Type: hard drive
                  1 Sacramento - San Joaquin River Delta lidar 2007-01-01 Source Contribution: topographic lidar ; Source Type: online
                  1 USACE Hydrographic Surveys 2009-01-01 Source Contribution: Hydrographic surveys for San Francisco Bay ; Source Type: online
                  1 USGS NED topography 2008-01-01 Source Contribution: topographic DEM downloaded from web site. ; Source Type: online
                  1 VDatum software v. 2.2.7 2009-01-01 Source Contribution: vertical datum transformation tool ; Source Type: online
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                  LE_ProcessStep or LI_ProcessStep

                  Count Component DateTime Description
                  1 2010-01-20T00:00:00 All datasets obtained by NGDC were converted to common horizontal and vertical datums of WGS 84 geographic and NAVD 88, respectively, using FME and VDatum transformation tool. They were also converted to common file format, ESRI point shapefiles, for visualization and inspection.
                  1 2010-02-09T00:00:00 Datasets were visually inspected with ArcGIS for identification and editing of data anomalies. Datasets were then compared with overlapping datasets to ensure data consistency.
                  1 2010-03-22T00:00:00 Coastline datasets were merged and adjusted to fit satellite imagery.
                  1 2010-05-10T00:00:00 xyz files of the bathymetric data were surfaced using GMT's 'surface' tool onto a 1 arc-second grid outside San Francisco Bay and 1/3 arc-second within the bay that interpolated to fill empty cells. Points extracted every 10 meters along the coastline were also included to ensure that the bathymetric grid reached zero at the coast. The resulting Arc ASCII grid was imported into ArcGIS and clipped to the coastline to remove values over land.
                  1 2010-06-24T00:00:00 xyz files for each input dataset were gridded using MB-System's 'mbgrid' tool, which utilizes a high-tension spline interpolation method to fill grid cells with no input elevation values. Preferential weighting was given to more recent, higher-accuracy datasets. Gridding was performed in quadrants, each with a 5% data buffer. The grids were imported in ArcGIS and seamlessly merged to create the final DEM.
                  1 2010-07-13T00:00:00 The NAVD 88 DEM was quantitatively evaluated by comparing with source datasets and with elevation values extracted from NGS geodetic monuments. It was visually evaluated by converting to UTM-zone coordinates (units of meters horizontally and vertically) and then creating a slope grid to identify gridding artifacts in the DEM.
                  1 2010-07-16T00:00:00 A conversion grid that models the relationship between NAVD 88 and MHW was created using data points and the VDatum transformation tool. This conversion grid was added to the NAVD 88 DEM to generate the MHW DEM.
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                  MI_Operation

                  Count Component Code Type Status Description
                  1 Tsunami Inundation Gridding Project
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                  MI_Platform

                  Count Component Code Description
                  1 Digital Elevation Model
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                  MI_Instrument

                  Count Component Code Type Description
                  3 Light Detection and Ranging
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