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Metadata Identifier: gov.noaa.ngdc.mgg.dem:590

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 Nikolski, Alaska 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 modeling 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 tsunamigeneration, 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 National Aeronautic Space Administration (NASA), and other federal, state, and local government agencies, and academic institutions. DEMs are referenced to the vertical tidal datum of Mean High Water (MHW) and horizontal datum of World Geodetic System 1984 (WGS84). Grid spacings for the DEM is 1 arc-second (30m).
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SV_Identification

Unresolved Xlinks
Color Shaded Relief ArcGIS Map Service at: /gmi:MI_Metadata/gmd:identificationInfo[2]
Footprints ArcGIS Map Service at: /gmi:MI_Metadata/gmd:identificationInfo[3]
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CI_Citation

Count Component Title Date Citation Identifier
1 ASTER topography
    2009-01-01
1 Digital Elevation Model of Nikolski, Alaska: Procedures, Data Sources, and Analysis
    2010-02-13
1 ETOPO1 1 Arc-Minute Global Relief Model
    2008-01-01
1 NASA/GCMD Data Resolution Keywords
    1 NASA/GCMD Earth Science Keywords
      1 NASA/GCMD Location Keywords
        1 NASA/GCMD Platform Keywords
          1 NGDC Multibeam Bathymetry Database
            2008-01-01
          1 NOAA Tsunami Inundation Gridding Project
            2008-10-31
          1 NOS Hydrographic Surveys
            2008-01-01
          1 Nikolski, Alaska Coastal Digital Elevation Model
            2010-02-13
          1 Shuttle Radar Topography Mission (SRTM)
            2008-01-01
          1 USGS NED topography
            2008-01-01
          2 Uncontrolled
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            CI_Series

            Count Component Name Issue Identification Page
            1 NOAA Tsunami Inundation DEMs Nikolski, Alaska
            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
            12 Citation URL https://www.ngdc.noaa.gov/dem/squareCellGrid/download/590
            1 Barry W. Eakins originator
            4 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce publisher
            5 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, 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
            1 Kelly S. Carignan originator
            1 Lisa A. Taylor originator
            1 METI/NASA > Ministry of Economy, Trade, and Industry of Japan and the U.S. National Aeronautics and Space Administration originator
            1 NASA > National Aeronautics and Space Administration originator
            1 Pamela R. Medley originator
            Unresolved Xlinks
            DEM Info at: /gmi:MI_Metadata/gmd:contact[1]
            NCEI (publisher) at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:citation[1]/gmd:CI_Citation[1]/gmd:citedResponsibleParty[1]
            DEM Info at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:pointOfContact[1]
            DEM information at: /gmi:MI_Metadata/gmd:distributionInfo[1]/gmd:MD_Distribution[1]/gmd:distributor[1]/gmd:MD_Distributor[1]/gmd:distributorContact[1]
            Barry Eakins at: /gmi:MI_Metadata/gmd:dataQualityInfo[2]/gmd:DQ_DataQuality[1]/gmd:lineage[1]/gmd:LI_Lineage[1]/gmd:processStep[1]/gmi:LE_ProcessStep[1]/gmd:processor[1]
            Kelly Carignan at: /gmi:MI_Metadata/gmd:metadataMaintenance[1]/gmd:MD_MaintenanceInformation[1]/gmd:contact[1]
            Anna Milan at: /gmi:MI_Metadata/gmd:metadataMaintenance[1]/gmd:MD_MaintenanceInformation[1]/gmd:contact[2]
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            CI_OnlineResource

            Count Component Linkage Name Description Function
            1 http://ned.usgs.gov/ USGS National Elevation Dataset Digital database of U.S. topography, in raster form (DEM) download
            1 https://lta.cr.usgs.gov/SRTM1Arc Shuttle Radar Topography Mission global topography download
            2 https://www.ngdc.noaa.gov/dem/squareCellGrid/download/590 Nikolski, Alaska 1 arc-second Tsunami Inundation DEM Download page for accessing DEM, metadata record and development report. download
            1 https://www.ngdc.noaa.gov/dem/squareCellGrid/getArchive/590?gridFormat=ESRI+Arc+ASCII Nikolski, Alaska Coastal Digital Elevation Model ASCII DEM Download DEM, metadata and readme file. download
            1 https://www.ngdc.noaa.gov/dem/squareCellGrid/getReport/590 Digital Elevation Model of Nikolski, Alaska: Procedures, Data Sources and Analysis Report describing the development of the Nikolski, Alaska DEM download
            1 https://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 https://www.ngdc.noaa.gov/mgg/bathymetry/multibeam.html NGDC Multibeam Bathymetry Database Multibeam swath sonar survey data download
            1 https://www.ngdc.noaa.gov/mgg/global/global.html ETOPO1 Global Relief Model global relief model integrating bathymetric and topographic datasets download
            2 https://www.ngdc.noaa.gov/mgg/inundation/tsunami/inundation.html NOAA Tsunami Inundation Gridding Project Project web page. information
            1 lpdaac.usgs.gov METI/NASA ASTER Topographic DEM Digital database of World topography, in raster form (DEM) download
            Unresolved Xlinks
            DEM text search at: /gmi:MI_Metadata/gmd:distributionInfo[1]/gmd:MD_Distribution[1]/gmd:transferOptions[3]/gmd:MD_DigitalTransferOptions[1]/gmd:onLine[1]
            DEM map search at: /gmi:MI_Metadata/gmd:distributionInfo[1]/gmd:MD_Distribution[1]/gmd:transferOptions[4]/gmd:MD_DigitalTransferOptions[1]/gmd:onLine[1]
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            MD_Identifier or RS_Identifier

            Count Component Code
            1 Digital Elevation Model
            1 Tsunami Inundation Gridding Project
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            EX_Extent

            Bounding Box Temporal Extent
            Count Component Description West East North South Start End
            1 -169.66 -168.09 53.19 52.29 1937-01-01 2009-01-01
            1 1910-01-01 1940-01-01
            1 1988-01-01 2005-01-01
            1
            1
            1
            1
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            EX_GeographicBoundingBox

            Count Component West East North South
            1 -169.66 -168.09 53.19 52.29
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            EX_TemporalExtent

            Count Component Start End
            1 1937-01-01 2009-01-01
            1 1910-01-01 1940-01-01
            1 1988-01-01 2005-01-01
            4
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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

            Unresolved Xlinks
            not for navigation at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:resourceConstraints[1]
            copyright statement at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:resourceConstraints[2]
            NOAA disclaimer at: /gmi:MI_Metadata/gmd:identificationInfo[1]/gmd:MD_DataIdentification[1]/gmd:resourceConstraints[3]
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            MD_ReferenceSystem

            Unresolved Xlinks
            WGS84 at: /gmi:MI_Metadata/gmd:referenceSystemInfo[1]
            MHW at: /gmi:MI_Metadata/gmd:referenceSystemInfo[2]
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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 5653
            1 column 3241
            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 Model of Nikolski, 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 ASTER topography 2009-01-01 Source Contribution: topographic DEM ; Source Type: on web
            1 ETOPO1 1 Arc-Minute Global Relief Model 2008-01-01 Source Contribution: DEM downloaded from web site. ; Source Type: on web
            1 NGDC Multibeam Bathymetry Database 2008-01-01 Source Contribution: downloaded from web site. ; Source Type: online
            1 NOS Hydrographic Surveys 2008-01-01 Source Contribution: hydrographic surveys ; Source Type: online
            1 Shuttle Radar Topography Mission (SRTM) 2008-01-01 Source Contribution: gridded topographic data downloaded from web site. ; Source Type: on web
            1 USGS NED topography 2008-01-01 Source Contribution: topographic DEM ; Source Type: on web
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            LE_ProcessStep or LI_ProcessStep

            Count Component DateTime Description
            1 2009-12-10T00:00:00 All datasets obtained by NGDC were converted to common horizontal and vertical datums of WGS84 geographic and Mean High Water, respectively, using FME. They were also converted to common file format, ESRI point shapefiles, for visualization and inspection.
            Barry Eakins at Xpath: /gmi:MI_Metadata/gmd:dataQualityInfo[2]/gmd:DQ_DataQuality[1]/gmd:lineage[1]/gmd:LI_Lineage[1]/gmd:processStep[1]/gmi:LE_ProcessStep[1]/gmd:processor[1]
            1 2009-12-13T00:00:00 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 2009-12-16T00:00:00 xyz files of the bathymetric data were surfaced using GMT's 'surface' tool onto a 1 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 2010-01-15T00:00:00 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.
            1 2010-01-27T00:00:00 The DEM was qualitatively 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. Comparisons to source data sets were also used to assess quality of gridding.
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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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