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Metadata Identifier: gov.noaa.ngdc.mgg.dem:4230

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 Elfin Cove Alaska 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).
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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 Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER)
  • 2009-01-01
1 Bench Mark Data Sheets with Tidal Datum References
  • 2010-01-01
1 CHS Tidal Datum References
  • 2010-01-01
1 Digital Elevation Model Footprints ArcGIS Map Service
  • 2011-02-15
1 Digital Elevation Models of Elfin Cove Alaska: Procedures, Data Sources, and Analysis
  • 2012-08-06
1 Digital Elevation Models: Color Shaded Relief ArcGIS Image Service
  • 2011-10-19
1 Electronic Navigational Charts
  • 2009-01-01
1 Elfin Cove Alaska Coastal Digital Elevation Model
  • 2011-03-31
1 Mean Higher 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 NGDC Multibeam Surveys
              • 2009-01-01
              1 NOAA Tsunami Inundation Gridding Project
              • 2008-10-31
              1 NOS Hydrographic Surveys
              • 2009-01-01
              1 Shuttle Radar Topography Mission (SRTM)
              • 2009-01-01
              1 UAF Elfin Cove GPS
              • 2012-01-01
              2 USACE Hydrographic Surveys
              • 2010-01-01
              2 Uncontrolled
                1 World Geodetic System 1984
                • 2007-08-27
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                CI_Series

                Count Component Name Issue Identification Page
                1 NOAA Tsunami Inundation DEMs Elfin Cove MHHW
                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
                13 Citation URL http://www.ngdc.noaa.gov/mgg/inundation/tsunami/inundation.html
                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 Canadian Hydrographic Service 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
                4 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
                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
                1 Lisa A. Taylor originator
                1 Matthew R. Love 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
                2 NASA > National Aeronautics and Space Administration originator
                2 U.S. Army Corps of Engineers, Alaska District originator
                1 University of Alaska at Fairbanks originator
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                CI_OnlineResource

                Count Component Linkage Name Description Function
                1 http://chs-shc.gc.ca/ Canadian Hydrographic Service Tidal Datums Tidal datum references for Canadian tide stations 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
                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://srtm.usgs.gov/ Shuttle Radar Topography Mission global topography download
                1 http://tidesandcurrents.noaa.gov/station_retrieve.shtml Tides and Currents Station Selection Bench Mark Data Sheets information
                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::5869 MHHW height GML for mean higher high water vertical coordinate reference system (in meters) available from the epsg-registry. information
                1 http://www.nauticalcharts.noaa.gov/mcd/enc/index.htm OCS Electronic Navigational Charts Digital database of NOAA nautical chart information. download
                1 http://www.ngdc.noaa.gov/dem/squareCellGrid/download/4230 Elfin Cove Alaska Coastal Digital Elevation Model Homepage Information, preview and access DEM, metadata record and development report. information
                1 http://www.ngdc.noaa.gov/dem/squareCellGrid/getArchive/4230?gridFormat=ESRI+Arc+ASCII Elfin Cove Alaska Coastal Digital Elevation Model ASCII DEM Download DEM, metadata and readme file. download
                1 http://www.ngdc.noaa.gov/dem/squareCellGrid/getReport/4230 Digital Elevation Models of Elfin Cove Alaska: Procedures, Data Sources and Analysis Report describing the development of the Elfin Cove 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
                1 http://www.ngdc.noaa.gov/mgg/bathymetry/multibeam.html NGDC Multibeam Survey Database Digital database of NGDC multibeam surveys. download
                1 http://www.ngdc.noaa.gov/mgg/inundation/tsunami/inundation.html NOAA Tsunami Inundation Gridding Project Project web page. information
                2 http://www.poa.usace.army.mil/ USACE Alaska District Hydrographic Surveys Digital database of hydrographic surveys in Alaska download
                1 lpdaac.usgs.gov Advanced Spaceborne Thermal Emission and Reflection Radiometer global topography download
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                MD_Identifier or RS_Identifier

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

                Bounding Box Temporal Extent
                Count Component Description West East North South Start End
                1 -136.470079 -136.259986 58.099994 58.270087 1883-01-01 2012-01-01
                2 -180 180 90 -90
                1 1883-01-01 2009-01-01
                1 1999-01-01 2008-01-01
                1 1977-01-01 2009-01-01
                1 1994-01-01 2009-01-01
                1
                1
                1 1983-01-01 2001-01-01
                1
                1 2012-01-01 2012-01-01
                1 2011-01-01 2011-01-01
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                EX_GeographicBoundingBox

                Count Component West East North South
                1 -136.470079 -136.259986 58.099994 58.270087
                2 -180 180 90 -90
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                EX_TemporalExtent

                Count Component Start End
                1 1883-01-01 2012-01-01
                1 1883-01-01 2009-01-01
                1 1999-01-01 2008-01-01
                1 1977-01-01 2009-01-01
                1 1994-01-01 2009-01-01
                3
                1 1983-01-01 2001-01-01
                1 2012-01-01 2012-01-01
                1 2011-01-01 2011-01-01
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                MD_Format

                Count Component Name Version specification
                1 ESRI Arc ASCII 1 asc
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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 MHHW MHHW Mean Higher High Water height
                1 WGS84 urn:ogc:def:crs:EPSG::4326 World Geodetic System 1984
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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 2269
                1 column 1873
                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 Elfin Cove Alaska: 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 Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) 2009-01-01 Source Contribution: gridded topographic data downloaded from web site. ; Source Type: on web
                1 Bench Mark Data Sheets with Tidal Datum References 2010-01-01 Source Contribution: tidal information table from which vertical datum adjustment information are interpreted; Source Type: online
                1 CHS Tidal Datum References 2010-01-01 Source Contribution: Canadian Hydrographic Service tide station datums ; Source Type: digital files via email
                1 Electronic Navigational Charts 2009-01-01 Source Contribution: Extracted hydrographic soundings ; Source Type: online
                1 NGDC Multibeam Surveys 2009-01-01 Source Contribution: multibeam surveys downloaded from web site. ; Source Type: online
                1 NOS Hydrographic Surveys 2009-01-01 Source Contribution: hydrographic surveys downloaded from web site. ; Source Type: online
                1 Shuttle Radar Topography Mission (SRTM) 2009-01-01 Source Contribution: gridded topographic data downloaded from web site. ; Source Type: on web
                1 UAF Elfin Cove GPS 2012-01-01 Source Contribution: gps survey data obtained from UAF ; Source Type: online
                2 USACE Hydrographic Surveys 2010-01-01 Source Contribution: Hydrographic surveys downloaded from web site. ; Source Type: online
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                LE_ProcessStep or LI_ProcessStep

                Count Component DateTime Description
                1 2012-07-04T00:00:00 All datasets obtained by NGDC were converted to common horizontal and vertical datums of WGS84 geographic and Mean Higher High Water, respectively, using Proj4, and GDAL. They were also converted to common file formats, ESRI point shapefiles or xyz, for visualization and inspection.
                1 2012-07-05T00:00:00 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 2012-08-02T00:00:00 xyz files of the bathymetric data were surfaced using GMT's 'surface' tool onto a 8 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 using GDAL to remove values over land.
                1 2012-08-03T00:00:00 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 with a 5% data buffer. The grid was imported in ArcGIS to create the final 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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