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Metadata Identifier: gov.noaa.ngdc.mgg.dem:707

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 Kachemak Bay, 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 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 a variety of vertical datums and horizontal datum of World Geodetic System of 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

Unresolved Xlinks
DEM Global Mosaic ArcGIS Image Service at: /gmi:MI_Metadata/gmd:identificationInfo[2]
Footprints ArcGIS Map Service at: /gmi:MI_Metadata/gmd:identificationInfo[3]
DEM MHW Mosaic ArcGIS Image Service at: /gmi:MI_Metadata/gmd:identificationInfo[4]
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CI_Citation

Count Component Title Date Citation Identifier
1 Bench Mark Data Sheets with Tidal Datum References
    2010-01-01
1 Coastal Kenai Lidar- Hydropalooza
    2008-01-01
1 Digital Elevation Model of Kachemak Bay, Alaska: Procedures, Data Sources, and Analysis
    2010-12-07
1 Global Change Master Directory (GCMD) Horizontal Data Resolution Keywords
    1 Global Change Master Directory (GCMD) Location Keywords
      1 Global Change Master Directory (GCMD) Platform Keywords
        1 Global Change Master Directory (GCMD) Science and Services Keywords
          1 Global Change Master Directory (GCMD) Vertical Data Resolution Keywords
            1 Kachemak Bay, Alaska Coastal Digital Elevation Model
              2010-12-07
            1 Kenai Lidar
              1998-01-01
            1 NOAA Tsunami Inundation Gridding Project
              2008-10-31
            1 NOS Hydrographic Surveys
              2010-01-01
            1 Shuttle Radar Topography Mission (SRTM)
              2008-01-01
            1 Stewardship Maturity Matrix (SMM) for Kachemak_Bay_AK_1_3s_MHW_DEM
              2016-06-21
            1 The Scientific Data Stewardship Maturity Assessment Model Template
              2016-06-21
            doi:10.10.6084/m9.figshare.1211954
            1 USACE Hydrographic Surveys
              2010-01-01
            2 Uncontrolled
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              CI_Series

              Count Component Name Issue Identification Page
              1 NOAA Tsunami Inundation DEM Kachemak Bay, Alaska 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
              14 Citation URL https://www.ngdc.noaa.gov/dem/squareCellGrid/download/707
              1 Barry W. Eakins originator
              1 Coastal Services Center originator
              1 DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce publisher
              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
              1 DOC/NOAA/NOS 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 Dorothy Z. Friday originator
              1 Elliot Lim originator
              1 Kelly S. Carignan originator
              1 Kenai Watershed Forum originator
              1 Lisa A. Taylor originator
              1 NASA > National Aeronautics and Space Administration originator
              1 Pamela R. Grothe originator
              1 Peng, Ge CICS-NC/NCEI author
              1 Robert J. Caldwell originator
              1 U.S. Army Corps of Engineers, Alaska District 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 Stewardship Maturity Matrix (SMM) for Kachemak_Bay_AK_1_3s_MHW_DEM PDF of the Data Stewardship Maturity Matrix (SMM) for Kachemak_Bay_AK_1_3s_MHW_DEM information
              1 http://southcentral.epscor.alaska.edu/catalogs/10636-kenai-peninsula-borough-hillshade Kenai Lidar ESRI Grid download
              1 http://www.csc.noaa.gov Digital Coast Lidar Data Retrieval Tool Digital database of lidar surveys download
              1 http://www.poa.usace.army.mil/ USACE Alaska District Hydrographic Surveys Digital database of hydrographic surveys in Alaska District download
              1 https://dx.doi.org/10.6084/m9.figshare.1211954 The Scientific Data Stewardship Maturity Assessment Model Template Landing page for quality evaluation procedure. information
              1 https://lta.cr.usgs.gov/SRTM1Arc Shuttle Radar Topography Mission global topography download
              1 https://tidesandcurrents.noaa.gov/stations.html Tides and Currents Station Selection Bench Mark Data Sheets information
              2 https://www.ngdc.noaa.gov/dem/squareCellGrid/download/707 Kachemak Bay, AK 1/3 arc-second MHW Tsunami Inundation DEM Download page for accessing DEM, metadata record and development report. download
              1 https://www.ngdc.noaa.gov/dem/squareCellGrid/getArchive/707?gridFormat=ESRI+Arc+ASCII Kachemak Bay, Alaska Coastal Digital Elevation Model ASCII DEM Download DEM, metadata and readme file. download
              1 https://www.ngdc.noaa.gov/dem/squareCellGrid/getReport/707 Digital Elevation Model of Kachemak Bay, Alaska: Procedures, Data Sources and Analysis Report describing the development of the Kachemak Bay, 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
              2 https://www.ngdc.noaa.gov/mgg/inundation/tsunami/inundation.html NOAA Tsunami Inundation Gridding Project Project web page. information
              1 https://www.ngdc.noaa.gov/thredds/dodsC/regional/kachemak_bay_ak.nc.html OPeNDAP Dataset Access Form download
              1 https://www.ngdc.noaa.gov/thredds/fileServer/regional/kachemak_bay_ak.nc Download NetCDF File download
              1 https://www.ngdc.noaa.gov/thredds/ncml/regional/kachemak_bay_ak.nc?catalog=https%3A%2F%2Fwww.ngdc.noaa.gov%2Fthredds%2Fcatalog%2Fregional%2Fcatalog.html&dataset=regionalDatasetScan%2Fkachemak_bay_ak.nc NetCDF Markup Language file information
              1 https://www.ngdc.noaa.gov/thredds/ncss/regional/kachemak_bay_ak.nc/dataset.html Download a subset of the NetCDF download
              1 https://www.ngdc.noaa.gov/thredds/wcs/regional/kachemak_bay_ak.nc?service=WCS&version=1.0.0&request=GetCapabilities Web Coverage Service GetCapabilities information
              1 https://www.ngdc.noaa.gov/thredds/wms/regional/kachemak_bay_ak.nc?service=WMS&version=1.3.0&request=GetCapabilities Web Map Service GetCapabilities information
              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 MM-Stew
              1 Tsunami Inundation Gridding Project
              1 doi:10.10.6084/m9.figshare.1211954
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              EX_Extent

              Bounding Box Temporal Extent
              Count Component Description West East North South Start End
              1 -152.10 -150.89 59.82 59.32 1915-01-01 2010-01-01
              1 2007-01-01 2010-01-01
              1
              1 1915-01-01 2010-01-01
              2 2008-01-01 2008-01-01
              1
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              EX_GeographicBoundingBox

              Count Component West East North South
              1 -152.10 -150.89 59.82 59.32
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              EX_TemporalExtent

              Count Component Start End
              2 1915-01-01 2010-01-01
              1 2007-01-01 2010-01-01
              2
              2 2008-01-01 2008-01-01
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              MD_Format

              Count Component Name Version specification
              1 ESRI Arc ASCII 1 ASCII text version of ESRI ArcGIS raster format
              Unresolved Xlinks
              netCDF 4 Classic at: /gmi:MI_Metadata/gmd:distributionInfo[1]/gmd:MD_Distribution[1]/gmd:distributionFormat[2]
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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]
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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 5401
              1 column 13069
              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 Kachemak Bay, Alaska: Procedures, Data Sources, and Analysis crossReference
              1 NOAA Tsunami Inundation Gridding Project largerWorkCitation
              1 Stewardship Maturity Matrix (SMM) for Kachemak_Bay_AK_1_3s_MHW_DEM crossReference
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              LE_Source or LI_Source

              Count Component Title Date Description
              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 Coastal Kenai Lidar- Hydropalooza 2008-01-01 Source Contribution: lidar dataset collected and provided by NGS ; Source Type: online
              1 Kenai Lidar 1998-01-01 Source Contribution: Lidar dataset acquired via ftp. ; Source Type: online
              1 NOS Hydrographic Surveys 2010-01-01 Source Contribution: hydrographic surveys downloaded from web site. ; 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 USACE Hydrographic Surveys 2010-01-01 Source Contribution: Hydrographic surveys for Alaska ; Source Type: online
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              LE_ProcessStep or LI_ProcessStep

              Count Component DateTime Description
              1 2010-05-03T00:00:00 All datasets obtained by NGDC were converted to common horizontal and vertical datums of NAD 83 geographic and MHW, respectively. 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 2010-05-26T00:00:00 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 2010-10-15T00:00:00 Coastline dataset was extracted and edited.
              1 2010-10-18T00:00:00 xyz files of the bathymetric data were surfaced using GMT's 'surface' tool onto 1/3 arc-second grid inside 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 2010-10-25T00:00:00 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 2010-11-08T00:00:00 The MHW 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 2010-11-10T00:00:00 The MHW DEM was qualitativley evaluated through comparison with nautical charts.
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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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