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Metadata Identifier: gov.noaa.ngdc.mgg.dem:703

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 Southern Alaska Coastal Relief Model NOAA's National Geophysical Data Center (NGDC) is building coastal-relief models (CRM) for select U.S. coastal regions. Bathymetric, topographic, and shoreline data used in DEM compilation are obtained from various sources, including NGDC, the U.S. National Ocean Service (NOS), the National , the United States Geological Survey (USGS), the National Aeronautics and Space Administration, the Office of Coast Survey (OCS) and other federal, state, and local government agencies, academic institutions, and private companies. DEMs are referenced to the vertical tidal datum of Mean Sea Level (MSL) and horizontal datum of World Geodetic System 1984 (WGS 84). Grid spacings for the Southern Alaska CRM is 24 arc-seconds (~720 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 Digital Elevation Model Footprints ArcGIS Map Service
  • 2011-02-15
1 Digital Elevation Models: Color Shaded Relief ArcGIS Image Service
  • 2011-10-19
1 Electronic Navigational Chart (ENC) soundings
  • 2009-01-01
1 Global Self-consistent, Hierarchical, High-resolution Shoreline (GSHHS)
  • 2005-01-01
1 Mean Sea Level depth
  • 2012-08-10
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 NGA Global Shoreline
              • 2000-01-01
              1 NGDC Bathymetric-topographic DEMs
              • 2009-01-01
              1 NGDC ETOPO1
              • 2008-01-01
              1 NGDC Multibeam Bathymetry Database
              • 2008-01-01
              1 NOS Hydrographic Surveys
              • 2009-01-01
              1 Shuttle Radar Topography Mission (SRTM) processed by CGIAR
              • 2008-01-01
              1 Southern Alaska Coastal Relief Model
              • 2009-06-30
              doi:10.7289/V58G8HMQ
              1 U.S. Coastal Relief Model
              • 1998-11-16
              1 U.S. Fish and Wildlife Service coastline
              • 2006-01-01
              1 USGS NED topography
              • 2008-01-01
              2 Uncontrolled
                1 World Geodetic System 1984
                • 2007-08-27
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                CI_Series

                Count Component Name Issue Identification Page
                1 NOAA Coastal Inundation DEMs Named by primary coastal city, state in DEM.
                1 NOAA Coastal Relief Model Southern Alaksa
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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
                14 Citation URL http://www.ngdc.noaa.gov/mgg/coastal/s_alaska.html
                2 GCMD Valids custodian http://gcmd.nasa.gov/learn/keyword_list.html
                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
                2 National Geophysical Data Center DOC/NOAA/NESDIS/NGDC - National Geophysical Data Center ngdc.info@noaa.gov custodian
                1 No Title DOC/NOAA/NESDIS/NGDC - National Geophysical Data Center ngdc.info@noaa.gov originator
                6 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, Department of Commerce publisher http://ngdc.noaa.gov/mgg/coastal/coastal.html
                5 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
                2 EPSG Registry European Petroleum Survey Group publisher http://www.epsg-registry.org/
                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
                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 NASA > National Aeronautics and Space Administration originator
                1 NGA > National Geospatial-Intelligence Agency originator
                1 NGDC > National Geophysical Data Center originator
                1 OCS > NOAA Office of Coast Survey originator
                1 U.S. FWS > United States Fish and Wildlife Service originator
                1 USGS > United States Geological Survey originator
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                CI_OnlineResource

                Count Component Linkage Name Description Function
                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://maps.ngdc.noaa.gov/viewers/wcs-client/ Grid Extract Tool Grid Extract Tool download
                1 http://msi.nga.mil/NGAPortal/MSI.portal National Geospatial-Intelligence Agency The NGA Global Shoreline Data is an unclassified vector dataset generated by Earth Satellite Corporation 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://seamless.usgs.gov/ USGS National Elevation Dataset Digital database of U.S. topography, in raster form (DEM) download
                1 http://srtm.csi.cgiar.org/ Shuttle Radar Topography Mission/CGIAR global topography 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:crs:EPSG::5715 MSL depth GML for Vertical CRS in EPGS Registry. information
                1 http://www.fws.gov/ Seamless digital coastline of the state of Alaska compiled from a variety of sources. The U.S. Fish and Wildlife Service has compiled a seamless digital coastline of the State of Alaska from a variety of sources, including: the National Hydrography Dataset, NOAA nautical charts, U.S. Fish and Wildlife Service, National Geographic Topo Software, U.S. Army Corps of Engineers, and Alaska Department of Natural Resources. download
                1 http://www.nauticalcharts.noaa.gov/mcd/enc/index.htm Electronic Navigational Chart (ENC) soundings ENC soundings extracted from NOS charts download
                1 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
                1 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
                1 http://www.ngdc.noaa.gov/mgg/bathymetry/multibeam.html NGDC Multibeam Bathymetry Database Multibeam swath sonar survey data download
                2 http://www.ngdc.noaa.gov/mgg/coastal/s_alaska.html Southern Alaska 24 arc-second Coastal Relief Model Download page for accessing DEM, metadata record and development report. download
                1 http://www.ngdc.noaa.gov/mgg/dem/demportal.html DEM Discovery Portal DEM search portal search
                1 http://www.ngdc.noaa.gov/mgg/global/global.html NGDC ETOPO1 Integrated bathymetric-topographic global DEM download
                1 http://www.ngdc.noaa.gov/mgg/inundation/tsunami/ NGDC Bathymetric-topographic DEMs Integrated bathymetric-topographic DEMs download
                1 http://www.ngdc.noaa.gov/mgg/shorelines/gshhs.html National Geophysical Data Center GSHHS is a high-resolution shoreline data set created from two well-known, public domain data sets. download
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                MD_Identifier or RS_Identifier

                Count Component Code
                1 doi:10.7289/V58G8HMQ
                1 urn:ogc:def:crs:EPSG::4326
                1 urn:ogc:def:crs:EPSG::5715
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                EX_Extent

                Bounding Box Temporal Extent
                Count Component Description West East North South Start End
                1 170 -130 66.50 48.50 1888-01-01 2009-01-01
                2 -180 180 90 -90
                1 1888-01-01 2005-01-01
                1 1986-01-01 2005-01-01
                1
                1
                1 2007-01-01 2008-01-01
                1 1999-01-01 2003-01-01
                1 2006-01-01 2009-01-01
                1 1995-01-01 2006-01-01
                1 1998-01-01 2002-01-01
                1 2003-01-01 2010-01-01
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                EX_GeographicBoundingBox

                Count Component West East North South
                1 170 -130 66.50 48.50
                2 -180 180 90 -90
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                EX_TemporalExtent

                Count Component Start End
                1 1888-01-01 2009-01-01
                1 1888-01-01 2005-01-01
                1 1986-01-01 2005-01-01
                2
                1 2007-01-01 2008-01-01
                1 1999-01-01 2003-01-01
                1 2006-01-01 2009-01-01
                1 1995-01-01 2006-01-01
                1 1998-01-01 2002-01-01
                1 2003-01-01 2010-01-01
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                MD_Format

                Count Component Name Version specification
                1 ASCII raster
                1 ASCII xyz
                1 NetCDF
                1 binary float
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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 MSL urn:ogc:def:crs:EPSG::5715 Mean Sea Level depth
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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 9001
                1 column 2071
                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 Coastal Relief Model Project U.S. Coastal Relief Model largerWorkCitation
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                LE_Source or LI_Source

                Count Component Title Date Description
                1 Electronic Navigational Chart (ENC) soundings 2009-01-01 Source Contribution: ENC soundings extracted from NOS charts ; Source Type: web
                1 Global Self-consistent, Hierarchical, High-resolution Shoreline (GSHHS) 2005-01-01 Source Contribution: shoreline ; Source Type: online
                1 NGA Global Shoreline 2000-01-01 Source Contribution: shoreline ; Source Type: online
                1 NGDC Bathymetric-topographic DEMs 2009-01-01 Source Contribution: NGDC Bathymetric-topographic DEMs ; Source Type: online
                1 NGDC ETOPO1 2008-01-01 Source Contribution: bathymetry and topography ; Source Type: online
                1 NGDC Multibeam Bathymetry Database 2008-01-01 Source Contribution: Multibeam bathymetry data ; Source Type: online
                1 NOS Hydrographic Surveys 2009-01-01 Source Contribution: hydrographic surveys ; Source Type: online
                1 Shuttle Radar Topography Mission (SRTM) processed by CGIAR 2008-01-01 Source Contribution: gridded topography ; Source Type: online
                1 U.S. Fish and Wildlife Service coastline 2006-01-01 Source Contribution: composite shoreline ; Source Type: online
                1 USGS NED topography 2008-01-01 Source Contribution: Topographic DEM ; Source Type: online
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                LE_ProcessStep or LI_ProcessStep

                Count Component DateTime Description
                1 2008-06-15T00:00:00 All datasets obtained by NGDC were converted to common horizontal and vertical datums of NAD 83/WGS 84 geographic and NAVD 88, respectively, using FME or ArcGIS. They were also converted to common file format, ESRI point shapefiles or digital rasters, for visualization and inspection.
                1 2008-07-02T00:00:00 Datasets were visually inspected with ArcGIS and QT Modeler for identification and editing of data anomalies. Datasets were then compared with overlapping datasets to ensure data consistency.
                1 2009-02-15T00:00:00 xyz files of the bathymetric data were surfaced using GMT's 'surface' tool onto a 20 arc-second grid 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 2009-05-20T00:00:00 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 2009-05-30T00:00:00 The DEM was quantitatively evaluated by comparing the grid against source data files.
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                MI_Operation

                none found
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                MI_Platform

                none found
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                MI_Instrument

                none found
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