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referenceSystemInfo
identificationInfo
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identificationInfo
distributionInfo
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Akutan, Alaska 8/15 Arc-second Coastal Digital Elevation Model
 (MI_Metadata)
    fileIdentifier:  gov.noaa.ngdc.mgg.dem:737
    hierarchyLevel:  (MD_ScopeCode) dataset
    contact:  (CI_ResponsibleParty)
        organisationName:  NOAA National Centers for Environmental Information
        contactInfo:  (CI_Contact)
            address:  (CI_Address)
                electronicMailAddress:  ncei.info@noaa.gov
            onlineResource:  (CI_OnlineResource)
                linkage: https://www.ncei.noaa.gov/contact
                name:  NCEI Contact Information
                description:  Information for contacts at NCEI.
                function:  (CI_OnLineFunctionCode) information
        role:  (CI_RoleCode) pointOfContact
    dateStamp:  2022-03-25
    metadataStandardName:  ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
    metadataStandardVersion:  ISO 19115-2:2009(E)
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    spatialRepresentationInfo:  (MD_GridSpatialRepresentation)
        numberOfDimensions:  3
        axisDimensionProperties:  (MD_Dimension)
            dimensionName:  (MD_DimensionNameTypeCode) row
            dimensionSize:  541
            resolution:
              Measure:  0.0014814815
        axisDimensionProperties:  (MD_Dimension)
            dimensionName:  (MD_DimensionNameTypeCode) column
            dimensionSize:  1216
            resolution:
              Measure:  0.0014814815
        axisDimensionProperties:  (MD_Dimension)
            dimensionName:  (MD_DimensionNameTypeCode) vertical
            dimensionSize:  1
        cellGeometry:  (MD_CellGeometryCode) area
        transformationParameterAvailability:  true
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    referenceSystemInfo:  (MD_ReferenceSystem)
        referenceSystemIdentifier:  (RS_Identifier)
            authority:  (CI_Citation)
                title:  World Geodetic System 1984
                alternateTitle:  WGS 84
                date:  (CI_Date)
                    date:  2007-08-27
                    dateType:  (CI_DateTypeCode) revision
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName: (withheld)
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://epsg.org/crs_4326/WGS-84.html
                            name:  WGS 84
                            description:  GML of World Geodetic System 1984 coordinate reference system.
                            function:  (CI_OnLineFunctionCode) information
                    role:  (CI_RoleCode) resourceProvider
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  European Petroleum Survey Group
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://epsg.org/home.html
                            name:  European Petroleum Survey Group Geodetic Parameter Registry
                            description:  Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations.
                            function:  (CI_OnLineFunctionCode) search
                    role:  (CI_RoleCode) publisher
            code:  urn:ogc:def:crs:EPSG::4326
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    referenceSystemInfo:  (MD_ReferenceSystem)
        referenceSystemIdentifier:  (RS_Identifier)
            authority:  (CI_Citation)
                title:  Mean Higher High Water height
                alternateTitle:  MHHW height
                date:  (CI_Date)
                    date:  2012-08-05
                    dateType:  (CI_DateTypeCode) revision
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName: (withheld)
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://epsg.org/crs_5869/MHHW-height.html
                            name:  MHHW height
                            description:  GML for mean higher high water vertical coordinate reference system (in meters) available from the epsg-registry.
                            function:  (CI_OnLineFunctionCode) information
                    role:  (CI_RoleCode) resourceProvider
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  European Petroleum Survey Group
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://epsg.org/home.html
                            name:  European Petroleum Survey Group Geodetic Parameter Registry
                            description:  Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations.
                            function:  (CI_OnLineFunctionCode) search
                    role:  (CI_RoleCode) publisher
            code:  MHHW
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    identificationInfo:  (MD_DataIdentification)
        citation:  (CI_Citation)
            title:  Akutan, Alaska 8/15 Arc-second Coastal Digital Elevation Model
            date:  (CI_Date)
                date:  2009-04-20
                dateType:  (CI_DateTypeCode) publication
            edition:  First
            identifier:  (MD_Identifier)
                authority:  (CI_Citation)
                    title:  NOAA National Centers for Environmental Information
                    date: (inapplicable)
                code:  NCEI Metadata ID: gov.noaa.ngdc.mgg.dem:737
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  NOAA National Centers for Environmental Information
                role:  (CI_RoleCode) publisher
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  NOAA National Geophysical Data Center
                role:  (CI_RoleCode) author
            presentationForm:  (CI_PresentationFormCode) mapDigital
            series:  (CI_Series)
                name:  NTHMP DEMs
                issueIdentification:  Akutan, Alaska
        abstract:  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).
        purpose:  Developed for the University of Alaska at Fairbanks (UAF), Geophysical Institute for tsunami and coastal inundation modeling efforts for the State of Alaska.
        status:  (MD_ProgressCode) completed
        status:  (MD_ProgressCode) historicalArchive
        pointOfContact:  (CI_ResponsibleParty)
            organisationName:  NOAA National Centers for Environmental Information
            contactInfo:  (CI_Contact)
                address:  (CI_Address)
                    electronicMailAddress:  ncei.info@noaa.gov
                onlineResource:  (CI_OnlineResource)
                    linkage: https://www.ncei.noaa.gov/contact
                    name:  NCEI Contact Information
                    description:  Information for contacts at NCEI.
                    function:  (CI_OnLineFunctionCode) information
            role:  (CI_RoleCode) pointOfContact
        pointOfContact:  (CI_ResponsibleParty)
            organisationName:  NOAA National Centers for Environmental Information
            positionName:  DEM Information
            contactInfo:  (CI_Contact)
                address:  (CI_Address)
                    electronicMailAddress:  dem.info@noaa.gov
            role:  (CI_RoleCode) pointOfContact
        resourceMaintenance:  (MD_MaintenanceInformation)
            maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) asNeeded
        graphicOverview:  (MD_BrowseGraphic)
            fileName: https://maps.ngdc.noaa.gov/thumbnails/DEM/737.png
            fileDescription:  Thumbnail of DEM
            fileType:  PNG
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Earth Science > Oceans > Bathymetry/Seafloor Topography > Seafloor Topography
            keyword:  Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry
            keyword:  Earth Science > Oceans > Bathymetry/Seafloor Topography > Water Depth
            keyword:  Earth Science > Land Surface > Topography > Terrain Elevation
            keyword:  Earth Science > Land Surface > Topography > Terrain Elevation > Topographical Relief Maps
            keyword:  Earth Science > Oceans > Coastal Processes > Coastal Elevation
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  (CI_Citation)
                title:  Global Change Master Directory (GCMD) Science Keywords
                date:  (CI_Date)
                    date:  2020-01-09
                    dateType:  (CI_DateTypeCode) publication
                edition:  9.1
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  NASA Goddard Space Flight Center, Earth Science Data and Information System
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
                            name:  Global Change Master Directory (GCMD) Keywords
                            description:  The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.
                            function:  (CI_OnLineFunctionCode) information
                    role:  (CI_RoleCode) custodian
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Models/Analyses > DEM > Digital Elevation Model
            type:  (MD_KeywordTypeCode) platform
            thesaurusName:  (CI_Citation)
                title:  Global Change Master Directory (GCMD) Platform Keywords
                date:  (CI_Date)
                    date:  2020-01-09
                    dateType:  (CI_DateTypeCode) publication
                edition:  9.1
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  NASA Goddard Space Flight Center, Earth Science Data and Information System
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
                            name:  Global Change Master Directory (GCMD) Keywords
                            description:  The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.
                            function:  (CI_OnLineFunctionCode) information
                    role:  (CI_RoleCode) custodian
        descriptiveKeywords:  (MD_Keywords)
            keyword:  ICSU-WDS > International Council for Science - World Data System
            keyword:  NOAA OneStop Project
            type:  (MD_KeywordTypeCode) project
            thesaurusName:  (CI_Citation)
                title:  Global Change Master Directory (GCMD) Project Keywords
                date:  (CI_Date)
                    date:  2020-01-09
                    dateType:  (CI_DateTypeCode) publication
                edition:  9.1
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  NASA Goddard Space Flight Center, Earth Science Data and Information System
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
                            name:  Global Change Master Directory (GCMD) Keywords
                            description:  The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.
                            function:  (CI_OnLineFunctionCode) information
                    role:  (CI_RoleCode) custodian
        descriptiveKeywords:  (MD_Keywords)
            keyword:  < 1 meter
            type:  (MD_KeywordTypeCode) dataResolution
            thesaurusName:  (CI_Citation)
                title:  Global Change Master Directory (GCMD) Vertical Data Resolution Keywords
                date:  (CI_Date)
                    date:  2020-01-09
                    dateType:  (CI_DateTypeCode) publication
                edition:  9.1
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  NASA Goddard Space Flight Center, Earth Science Data and Information System
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
                            name:  Global Change Master Directory (GCMD) Keywords
                            description:  The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.
                            function:  (CI_OnLineFunctionCode) information
                    role:  (CI_RoleCode) custodian
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Coastal Relief
            keyword:  Gridded elevations
            keyword:  Integrated bathymetry and topography
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  (CI_Citation)
                title:  Uncontrolled
                date: (unknown)
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Continent > North America > United States of America > Alaska
            keyword:  Ocean > Pacific Ocean > North Pacific Ocean
            keyword:  Ocean > Pacific Ocean > North Pacific Ocean > Gulf of Alaska
            keyword:  Vertical Location > Land Surface
            keyword:  Vertical Location > Sea Floor
            type:  (MD_KeywordTypeCode) place
            thesaurusName:  (CI_Citation)
                title:  Global Change Master Directory (GCMD) Location Keywords
                date:  (CI_Date)
                    date:  2020-01-09
                    dateType:  (CI_DateTypeCode) publication
                edition:  9.1
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  NASA Goddard Space Flight Center, Earth Science Data and Information System
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
                            name:  Global Change Master Directory (GCMD) Keywords
                            description:  The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.
                            function:  (CI_OnLineFunctionCode) information
                    role:  (CI_RoleCode) custodian
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Akutan
            type:  (MD_KeywordTypeCode) place
            thesaurusName:  (CI_Citation)
                title:  Uncontrolled
                date: (unknown)
        descriptiveKeywords:  (MD_Keywords)
            keyword:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
            keyword:  DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
            type:  (MD_KeywordTypeCode) dataCentre
            thesaurusName:  (CI_Citation)
                title:  Global Change Master Directory (GCMD) Data Center Keywords
                date:  (CI_Date)
                    date:  2020-01-09
                    dateType:  (CI_DateTypeCode) publication
                edition:  9.1
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  NASA Goddard Space Flight Center, Earth Science Data and Information System
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
                            name:  Global Change Master Directory (GCMD) Keywords
                            description:  The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.
                            function:  (CI_OnLineFunctionCode) information
                    role:  (CI_RoleCode) custodian
        resourceConstraints:  (MD_LegalConstraints)
            accessConstraints:  (MD_RestrictionCode) otherRestrictions
            otherConstraints:  Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
        resourceConstraints:  (MD_LegalConstraints)
            useConstraints:  (MD_RestrictionCode) otherRestrictions
            otherConstraints:  Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
        resourceConstraints:  (MD_Constraints)
            useLimitation:  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.
        resourceConstraints:  (MD_Constraints)
            useLimitation:  Produced by the NOAA National Centers for Environmental Information. Not subject to copyright protection within the United States.
        resourceConstraints:  (MD_LegalConstraints)
            useLimitation:  (MD_RestrictionCode) otherRestrictions
            otherConstraints:  Cite as: NOAA National Geophysical Data Center. 2009: Akutan, Alaska 8/15 Arc-second Coastal Digital Elevation Model. NOAA National Centers for Environmental Information. Accessed [date].
        aggregationInfo:  (MD_AggregateInformation)
            aggregateDataSetName:  (CI_Citation)
                title:  Data Stewardship Maturity Report for Akutan, Alaska 8/15 arc-second Coastal Digital Elevation Model
                date:  (CI_Date)
                    date:  2022
                    dateType:  (CI_DateTypeCode) publication
                citedResponsibleParty:  (CI_ResponsibleParty)
                    individualName:  NOAA Institutional Repository
                    role:  (CI_RoleCode) publisher
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName: (missing)
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://doi.org/10.25923/mqgp-4d76
                            protocol:  HTTPS
                            applicationProfile:  Web Browser
                            name:  DSMR Publication at the NOAA Institutional Repository
                            description:  Report documenting the Scientific Data Stewardship Maturity for this dataset.
                            function:  (CI_OnLineFunctionCode) information
                    role: (inapplicable)
            associationType:  (DS_AssociationTypeCode) crossReference
            initiativeType:  (DS_InitiativeTypeCode) sciencePaper
        aggregationInfo:  (MD_AggregateInformation)
            aggregateDataSetName:  (CI_Citation)
                title:  NTHMP DEM Project
                date:  (CI_Date)
                    date:  2009-12-01
                    dateType:  (CI_DateTypeCode) publication
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
                    contactInfo:  (CI_Contact)
                        address:  (CI_Address)
                            city:  Boulder
                            administrativeArea:  Colorado
                    role:  (CI_RoleCode) publisher
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
                    role:  (CI_RoleCode) originator
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName: (inapplicable)
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://www.ncei.noaa.gov/maps/bathymetry/
                            protocol:  HTTPS
                            name:  Bathymetric Data Viewer
                            description:  The Bathymetric Data Viewer is an interactive map providing discovery, descriptions, and download capability for bathymetric survey data and digital elevation models archived at NOAA's National Centers for Environmental Information (NCEI).
                            function:  (CI_OnLineFunctionCode) search
                    role: (inapplicable)
                presentationForm:  (CI_PresentationFormCode) mapDigital
                series:  (CI_Series)
                    name:  NTHMP DEMs
                    issueIdentification:  Named by primary coastal city, state in DEM.
            associationType:  (DS_AssociationTypeCode) largerWorkCitation
        aggregationInfo:  (MD_AggregateInformation)
            aggregateDataSetName:  (CI_Citation)
                title:  Digital Elevation Models of Akutan, Alaska: Procedures, Data Sources, and Analysis
                date:  (CI_Date)
                    date:  2009-04-20
                    dateType:  (CI_DateTypeCode) publication
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
                    contactInfo:  (CI_Contact)
                        address:  (CI_Address)
                            city:  Boulder
                            administrativeArea:  CO
                    role:  (CI_RoleCode) publisher
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  Elliot Lim
                    role:  (CI_RoleCode) originator
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  Barry W. Eakins
                    role:  (CI_RoleCode) originator
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  R. Jason Caldwell
                    role:  (CI_RoleCode) originator
                citedResponsibleParty:  (CI_ResponsibleParty)
                    positionName: (inapplicable)
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://www.ngdc.noaa.gov/mgg/dat/dems/regional_tr/akutan_815_mhhw_2009.pdf
                            name:  Digital Elevation Model of Akutan, Alaska: Procedures, Data Sources and Analysis
                            description:  Report describing the development of the Akutan, Alaska DEM
                            function:  (CI_OnLineFunctionCode) download
                    role: (inapplicable)
                otherCitationDetails:  30 pages
            associationType:  (DS_AssociationTypeCode) crossReference
            initiativeType:  (DS_InitiativeTypeCode) userGuide
        spatialRepresentationType:  (MD_SpatialRepresentationTypeCode) grid
        language:  eng; USA
        topicCategory:  (MD_TopicCategoryCode) elevation
        environmentDescription:  Native Dataset Environment: Microsoft Windows 2000 Version 5.2 (Build 3790) Service Pack 2; ESRI ArcCatalog 9.2.4.1420
        extent:  (EX_Extent)
            geographicElement:  (EX_GeographicBoundingBox)
                westBoundLongitude:  -165.85
                eastBoundLongitude:  -165.67
                southBoundLatitude:  54.09
                northBoundLatitude:  54.17
            temporalElement:  (EX_TemporalExtent)
                extent:
                  TimePeriod:
                    beginPosition:  1896-01-01
                    endPosition:  2008-01-01
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    identificationInfo:  (SV_ServiceIdentification)
        citation:  (CI_Citation)
            title:  Digital Elevation Model Global Mosaic ArcGIS Image Service
            date:  (CI_Date)
                date:  2016-06-14
                dateType:  (CI_DateTypeCode) creation
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce
                contactInfo:  (CI_Contact)
                    onlineResource:  (CI_OnlineResource)
                        linkage: https://www.ncei.noaa.gov/products/coastal-elevation-models
                        protocol:  HTTPS
                        name:  Coastal Elevation Models at NCEI
                        function:  (CI_OnLineFunctionCode) information
                role:  (CI_RoleCode) publisher
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce
                contactInfo:  (CI_Contact)
                    onlineResource:  (CI_OnlineResource)
                        linkage: https://noaa.maps.arcgis.com/home/item.html?id=c876e3c96a8642ab8557646a3b4fa0ff
                        protocol:  HTTPS
                        name:  NOAA GeoPlatform Entry for DEM Global Mosaic (Elevation Values)
                        description:  NOAA GeoPlatform listing for DEM Global Mosaic (Elevation Values)
                        function:  (CI_OnLineFunctionCode) information
                role:  (CI_RoleCode) publisher
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce
                contactInfo:  (CI_Contact)
                    onlineResource:  (CI_OnlineResource)
                        linkage: https://noaa.maps.arcgis.com/home/item.html?id=e11ebaeb19544bb18c2afe440f063062
                        protocol:  HTTPS
                        name:  NOAA GeoPlatform Entry for DEM Global Mosaic (Color Shaded Relief)
                        description:  Shaded relief visualization of a global seamless bathymetry/topography mosaic of digital elevation models at NOAA/NCEI.
                        function:  (CI_OnLineFunctionCode) information
                role:  (CI_RoleCode) publisher
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce
                contactInfo:  (CI_Contact)
                    onlineResource:  (CI_OnlineResource)
                        linkage: https://noaa.maps.arcgis.com/home/item.html?id=e9ba2e7afb7d46cd878b34aa3bfce042
                        protocol:  ESRI:ArcGIS
                        name:  Digital Elevation Models Mosaic (Individual DEMs)
                        description:  An image service providing access to bathymetric/topographic digital elevation models stewarded at NOAA's National Centers for Environmental Information. Either individual DEMs or small subsets can be accessed through this service.
                        function:  (CI_OnLineFunctionCode) search
                role:  (CI_RoleCode) publisher
        abstract:  The DEM Global Mosaic is an image service providing a global, seamless bathymetry/topography mosaic that includes NCEI's ETOPO 2022, NCEI's Continuously Updated DEM (CUDEM), and other NCEI-stewarded DEMs, along with regional grids such as IBCAO, IBCSO and the Hawaiian Island Multibeam Synthesis (University of Hawaii). This service provides elevation/depth values in meters; for a visualization of the data, please see the related DEM Global Mosaic (Color Shaded Relief) service. There are 5 related image services providing access to Digital Elevation Models: DEM Mosaic (Individual DEMs), DEM Global Mosaic (Elevation Values), DEM Global Mosaic (Color Shaded Relief), CUDEM Mosaic (Elevation Values), and CUDEM Mosaic (Color Shaded Relief). NCEI builds and distributes high-resolution, coastal digital elevation models (DEMs) that integrate ocean bathymetry and land topography to support NOAA's mission to understand and predict changes in Earth's environment, and conserve and manage coastal and marine resources to meet our Nation's economic, social, and environmental needs. They can be used for modeling of coastal processes (tsunami inundation, storm surge, sea-level rise, contaminant dispersal, etc.), ecosystems management and habitat research, coastal and marine spatial planning, and hazard mitigation and community preparedness. This service is a general-purpose global, seamless bathymetry/topography mosaic. It combines DEMs from a variety of near sea-level vertical datums, such as mean high water (MHW), mean sea level (MSL), and North American Vertical Datum of 1988 (NAVD88). No conversion/harmonization of vertical datums was performed. Because the mosaic contains 'overviews' for performance, individual DEMs cannot be separated from the others. Individual DEMs, or smaller subsets, are available in the companion DEM Mosaic (Individual DEMs) image service. By default, the DEMs are drawn in order of cell size, with higher-resolution grids displayed on top of lower-resolution grids. If overlapping DEMs have the same resolution, the newer one is shown. Please see NCEI's corresponding DEM Footprints feature service for polygon footprints and more information about the individual DEMs used to create this composite view.
        pointOfContact:  (CI_ResponsibleParty)
            individualName:  NCEI GIS Team
            organisationName:  NOAA National Centers for Environmental Information
            contactInfo:  (CI_Contact)
                address:  (CI_Address)
                    electronicMailAddress:  ncei.gis@noaa.gov
            role:  (CI_RoleCode) pointOfContact
        descriptiveKeywords:  (MD_Keywords)
            keyword:  DATA ANALYSIS AND VISUALIZATION > GEOGRAPHIC INFORMATION SYSTEMS > WEB-BASED GEOGRAPHIC INFORMATION SYSTEMS
            keyword:  DATA MANAGEMENT/DATA HANDLING > DATA SEARCH AND RETRIEVAL
            keyword:  DATA ANALYSIS AND VISUALIZATION > VISUALIZATION/IMAGE PROCESSING
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  (CI_Citation)
                title:  Global Change Master Directory (GCMD) Service Keywords
                date:  (CI_Date)
                    date:  2020-01-09
                    dateType:  (CI_DateTypeCode) publication
                edition:  9.1
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  NASA Goddard Space Flight Center, Earth Science Data and Information System
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
                            name:  Global Change Master Directory (GCMD) Keywords
                            description:  The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.
                            function:  (CI_OnLineFunctionCode) information
                    role:  (CI_RoleCode) custodian
        resourceConstraints:  (MD_Constraints)
            useLimitation:  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.
        serviceType:
          LocalName:  ArcGIS Image Service
        serviceTypeVersion:  10.8.1
        extent:  (EX_Extent)
            geographicElement:  (EX_GeographicBoundingBox)
                extentTypeCode:  1
                westBoundLongitude:  -180
                eastBoundLongitude:  180
                southBoundLatitude:  -90
                northBoundLatitude:  90
        couplingType:  (SV_CouplingType) tight
        containsOperations:  (SV_OperationMetadata)
            operationName:  ArcGIS Server REST endpoint for image service (Elevation Values)
            DCP: (unknown)
            connectPoint:  (CI_OnlineResource)
                linkage: https://gis.ngdc.noaa.gov/arcgis/rest/services/DEM_mosaics/DEM_global_mosaic/ImageServer
                protocol:  ESRI:ArcGIS
                applicationProfile:  ESRI Image Service REST specification
                name:  DEM Global Mosaic (Elevation Values) ArcGIS Image Service
                description:  REST endpoint for DEM Global Mosaic (Elevation Values) ArcGIS Image Service
                function:  (CI_OnLineFunctionCode) search
        containsOperations:  (SV_OperationMetadata)
            operationName:  ArcGIS for Server REST endpoint for image service (Color Shaded Relief)
            DCP: (unknown)
            connectPoint:  (CI_OnlineResource)
                linkage: https://gis.ngdc.noaa.gov/arcgis/rest/services/DEM_mosaics/DEM_global_mosaic_hillshade/ImageServer
                protocol:  ESRI:ArcGIS
                applicationProfile:  ESRI Image Rest Specification
                name:  DEM Global Mosaic (Color Shaded Relief) ArcGIS Image Service
                description:  This service provides a color shaded relief visualization of the data. The elevations/depths are displayed using this color ramp: https://gis.ngdc.noaa.gov/viewers/images/dem_color_scale.png.
                function:  (CI_OnLineFunctionCode) search
        containsOperations:  (SV_OperationMetadata)
            operationName:  WMS Get Capabilities
            DCP:
            connectPoint:  (CI_OnlineResource)
                linkage: https://gis.ngdc.noaa.gov/arcgis/services/DEM_mosaics/DEM_global_mosaic_hillshade/ImageServer/WMSServer?request=GetCapabilities&service=WMS
                protocol:  OGC:WMS
                applicationProfile: http://opengis.net/spec/wms
                name:  DEM Global Mosaic (Color Shaded Relief) WMS
                description:  Capabilities document for Open Geospatial Consortium Web Map Service for DEM Global Mosaic (Color Shaded Relief)
                function:  (CI_OnLineFunctionCode) search
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    identificationInfo:  (SV_ServiceIdentification)
        citation:  (CI_Citation)
            title:  NCEI Digital Elevation Model Extents ArcGIS Feature Layer
            date:  (CI_Date)
                date:  2022-10-24
                dateType:  (CI_DateTypeCode) creation
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce
                contactInfo:  (CI_Contact)
                    onlineResource:  (CI_OnlineResource)
                        linkage: https://www.ncei.noaa.gov/products/coastal-elevation-models
                        protocol:  HTTPS
                        name:  Coastal Elevation Models at NCEI
                        function:  (CI_OnLineFunctionCode) information
                role:  (CI_RoleCode) publisher
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce
                contactInfo:  (CI_Contact)
                    onlineResource:  (CI_OnlineResource)
                        linkage: https://noaa.maps.arcgis.com/home/item.html?id=0afa88a1701749dbbf76fcadca4f77f3
                        protocol:  HTTPS
                        name:  NOAA GeoPlatform Entry for NCEI Digital Elevation Model (DEM) Extents
                        description:  NOAA GeoPlatform listing for NCEI Digital Elevation Model (DEM) Extents
                        function:  (CI_OnLineFunctionCode) information
                role:  (CI_RoleCode) publisher
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce
                contactInfo:  (CI_Contact)
                    onlineResource:  (CI_OnlineResource)
                        linkage: https://noaa.maps.arcgis.com/home/item.html?id=c876e3c96a8642ab8557646a3b4fa0ff
                        protocol:  HTTPS
                        name:  NOAA GeoPlatform Entry for DEM Global Mosaic (Elevation Values)
                        description:  NOAA GeoPlatform listing for DEM Global Mosaic (Elevation Values)
                        function:  (CI_OnLineFunctionCode) information
                role:  (CI_RoleCode) publisher
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce
                contactInfo:  (CI_Contact)
                    onlineResource:  (CI_OnlineResource)
                        linkage: https://noaa.maps.arcgis.com/home/item.html?id=e11ebaeb19544bb18c2afe440f063062
                        protocol:  HTTPS
                        name:  NOAA GeoPlatform Entry for DEM Global Mosaic (Color Shaded Relief)
                        description:  Shaded relief visualization of a global seamless bathymetry/topography mosaic of digital elevation models at NOAA/NCEI.
                        function:  (CI_OnLineFunctionCode) information
                role:  (CI_RoleCode) publisher
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce
                contactInfo:  (CI_Contact)
                    onlineResource:  (CI_OnlineResource)
                        linkage: https://noaa.maps.arcgis.com/home/item.html?id=e9ba2e7afb7d46cd878b34aa3bfce042
                        protocol:  ESRI:ArcGIS
                        name:  Digital Elevation Models Mosaic (Individual DEMs)
                        description:  An image service providing access to bathymetric/topographic digital elevation models stewarded at NOAA's National Centers for Environmental Information. Either individual DEMs or small subsets can be accessed through this service.
                        function:  (CI_OnLineFunctionCode) search
                role:  (CI_RoleCode) publisher
        abstract:  A map service showing the location and coverage of land and seafloor digital elevation models (DEMs) available from NOAA's National Centers for Environmental Information (NCEI). NCEI builds and distributes high-resolution, coastal digital elevation models (DEMs) that integrate ocean bathymetry and land topography to support NOAA's mission to understand and predict changes in Earth's environment, and conserve and manage coastal and marine resources to meet our Nation's economic, social, and environmental needs. They can be used for modeling of coastal processes (tsunami inundation, storm surge, sea-level rise, contaminant dispersal, etc.), ecosystems management and habitat research, coastal and marine spatial planning, and hazard mitigation and community preparedness. Layers available in the map service: Layers 1-4: DEMs by Category (includes various DEMs, both hosted at NCEI, and elsewhere on the web); Layers 6-11: NCEI DEM Projects (DEMs hosted at NCEI, color-coded by project); Layer 12: All NCEI Bathymetry DEMs (All bathymetry or bathy-topo DEMs hosted at NCEI).
        pointOfContact:  (CI_ResponsibleParty)
            individualName:  NCEI GIS Team
            organisationName:  NOAA National Centers for Environmental Information
            contactInfo:  (CI_Contact)
                address:  (CI_Address)
                    electronicMailAddress:  ncei.gis@noaa.gov
            role:  (CI_RoleCode) pointOfContact
        descriptiveKeywords:  (MD_Keywords)
            keyword:  DATA ANALYSIS AND VISUALIZATION > GEOGRAPHIC INFORMATION SYSTEMS > WEB-BASED GEOGRAPHIC INFORMATION SYSTEMS
            keyword:  DATA MANAGEMENT/DATA HANDLING > DATA SEARCH AND RETRIEVAL
            keyword:  DATA ANALYSIS AND VISUALIZATION > VISUALIZATION/IMAGE PROCESSING
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  (CI_Citation)
                title:  Global Change Master Directory (GCMD) Service Keywords
                date:  (CI_Date)
                    date:  2020-01-09
                    dateType:  (CI_DateTypeCode) publication
                edition:  9.1
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  NASA Goddard Space Flight Center, Earth Science Data and Information System
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
                            name:  Global Change Master Directory (GCMD) Keywords
                            description:  The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.
                            function:  (CI_OnLineFunctionCode) information
                    role:  (CI_RoleCode) custodian
        resourceConstraints:  (MD_Constraints)
            useLimitation:  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: https://www.nauticalcharts.noaa.gov.
        serviceType:
          LocalName:  ArcGIS Feature Service
        serviceTypeVersion:  11.0
        extent:  (EX_Extent)
            geographicElement:  (EX_GeographicBoundingBox)
                extentTypeCode:  1
                westBoundLongitude:  -180
                eastBoundLongitude:  180
                southBoundLatitude:  -90
                northBoundLatitude:  90
        couplingType:  (SV_CouplingType) tight
        containsOperations:  (SV_OperationMetadata)
            operationName:  ArcGIS Server REST endpoint for feature service
            DCP: (unknown)
            connectPoint:  (CI_OnlineResource)
                linkage: https://services2.arcgis.com/C8EMgrsFcRFL6LrL/arcgis/rest/services/ncei_dem_extents/FeatureServer
                protocol:  HTTPS
                applicationProfile:  ESRI Feature Service REST Specification
                name:  NCEI Digital Elevation Model (DEM) Extents ArcGIS Feature Service
                description:  REST endpoint for NCEI Digital Elevation Model (DEM) Extents ArcGIS Feature Service
                function:  (CI_OnLineFunctionCode) search
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    distributionInfo:  (MD_Distribution)
        distributor:  (MD_Distributor)
            distributorContact:  (CI_ResponsibleParty)
                organisationName:  NOAA National Centers for Environmental Information
                contactInfo:  (CI_Contact)
                    address:  (CI_Address)
                        electronicMailAddress:  ncei.info@noaa.gov
                    onlineResource:  (CI_OnlineResource)
                        linkage: https://www.ncei.noaa.gov/contact
                        name:  NCEI Contact Information
                        description:  Information for contacts at NCEI.
                        function:  (CI_OnLineFunctionCode) information
                role:  (CI_RoleCode) distributor
            distributionOrderProcess:  (MD_StandardOrderProcess)
                fees:  In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
                orderingInstructions:  Contact NCEI for other distribution options and instructions.
            distributorFormat:  (MD_Format)
                name:  netCDF
                version:  1
                specification:  netCDF
                fileDecompressionTechnique:  WINZIP
            distributorFormat:  (MD_Format)
                name:  netCDF
                version:  4 Classic
            distributorTransferOptions:  (MD_DigitalTransferOptions)
                onLine:  (CI_OnlineResource)
                    linkage: https://www.ncei.noaa.gov/metadata/geoportal/rest/metadata/item/gov.noaa.ngdc.mgg.dem:737/html
                    protocol:  HTTPS
                    name:  Metadata Landing Page
                    function:  (CI_OnLineFunctionCode) information
            distributorTransferOptions:  (MD_DigitalTransferOptions)
                onLine:  (CI_OnlineResource)
                    linkage: https://www.ngdc.noaa.gov/mgg/coastal
                    protocol:  HTTPS
                    name:  DEM text search
                    description:  Text search for locating completed and planned DEMs.
                    function:  (CI_OnLineFunctionCode) search
            distributorTransferOptions:  (MD_DigitalTransferOptions)
                onLine:  (CI_OnlineResource)
                    linkage: https://www.ncei.noaa.gov/maps/bathymetry/
                    protocol:  HTTPS
                    name:  Bathymetric Data Viewer
                    description:  The Bathymetric Data Viewer is an interactive map providing discovery, descriptions, and download capability for bathymetric survey data and digital elevation models archived at NOAA's National Centers for Environmental Information (NCEI).
                    function:  (CI_OnLineFunctionCode) search
            distributorTransferOptions:  (MD_DigitalTransferOptions)
                onLine:  (CI_OnlineResource)
                    linkage: https://www.ngdc.noaa.gov/thredds/dodsC/regional/akutan_815_mhhw_2009.nc.html
                    protocol:  OPeNDAP:OPeNDAP
                    description:  OPeNDAP Dataset Access Form
                    function:  (CI_OnLineFunctionCode) download
            distributorTransferOptions:  (MD_DigitalTransferOptions)
                onLine:  (CI_OnlineResource)
                    linkage: https://www.ngdc.noaa.gov/thredds/fileServer/regional/akutan_815_mhhw_2009.nc
                    protocol:  HTTPS
                    description:  Download NetCDF File
                    function:  (CI_OnLineFunctionCode) download
            distributorTransferOptions:  (MD_DigitalTransferOptions)
                onLine:  (CI_OnlineResource)
                    linkage: https://www.ngdc.noaa.gov/thredds/wcs/regional/akutan_815_mhhw_2009.nc?service=WCS&version=1.0.0&request=GetCapabilities
                    protocol:  OGC:WCS
                    description:  Web Coverage Service GetCapabilities
                    function:  (CI_OnLineFunctionCode) information
            distributorTransferOptions:  (MD_DigitalTransferOptions)
                onLine:  (CI_OnlineResource)
                    linkage: https://www.ngdc.noaa.gov/thredds/wms/regional/akutan_815_mhhw_2009.nc?service=WMS&version=1.3.0&request=GetCapabilities
                    protocol:  OGC:WMS
                    description:  Web Map Service GetCapabilities
                    function:  (CI_OnLineFunctionCode) information
            distributorTransferOptions:  (MD_DigitalTransferOptions)
                onLine:  (CI_OnlineResource)
                    linkage: https://www.ngdc.noaa.gov/thredds/ncss/regional/akutan_815_mhhw_2009.nc/dataset.html
                    protocol:  HTTPS
                    description:  Download a subset of the NetCDF
                    function:  (CI_OnLineFunctionCode) download
            distributorTransferOptions:  (MD_DigitalTransferOptions)
                onLine:  (CI_OnlineResource)
                    linkage: https://www.ngdc.noaa.gov/thredds/ncml/regional/akutan_815_mhhw_2009.nc?catalog=https%3A%2F%2Fwww.ngdc.noaa.gov%2Fthredds%2Fcatalog%2Fregional%2Fcatalog.html&dataset=regionalDatasetScan%2Fakutan_815_mhhw_2009.nc
                    protocol:  HTTPS
                    description:  NetCDF Markup Language file
                    function:  (CI_OnLineFunctionCode) information
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    dataQualityInfo:  (DQ_DataQuality)
        scope:  (DQ_Scope)
            level:  (MD_ScopeCode) repository
            levelDescription:  (MD_ScopeDescription)
                other:  NOAA National Centers for Environmental Information
        lineage:  (LI_Lineage)
            processStep:  (LE_ProcessStep)
                description:  NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
                dateTime:
                  DateTime:  2015-04-22T00:00:00
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    dataQualityInfo:  (DQ_DataQuality)
        scope:  (DQ_Scope)
            level:  (MD_ScopeCode) dataset
        report:  (DQ_AbsoluteExternalPositionalAccuracy)
            nameOfMeasure:  Horizontal Positional Accuracy Report
            evaluationMethodDescription:  The horizontal accuracy of bathymetric and topographic features in the DEM is dependent upon cell size and the accuracy of the input datasets used to determine corresponding cell values. Positional accuracy of input topographic datasets limits accuracy of corresponding cell values in DEM. USGS SRTM DEM: 15 to 30 meters. DEM cell-value relative-contribution factors: NED: 100, SRTM: 10. Bathymetry: several hundred meters. Positional accuracy of input bathymetric datasets limits accuracy of corresponding cell values in DEM. NOS, NOS hydrographic LiDAR and USACE surveys (primarily in dredged shipping channels): about 1 meter. Early 20th-century NOS hydrographic soundings are limited by sparseness of deep-water soundings, and potentially large position accuracy of pre-satellite (i.e., GPS) navigation: tens to several hundreds of meters. Morphologic change in inland rivers and along the coast also degrades the positional accuracy of NOS soundings. Where present, hydrographic LiDAR and USACE survey data supplant NOS hydrographic sounding data values in the DEM. DEM cell-value relative-contribution factors: ENC soundings: 100, USACE surveys: 100, NOS hydrographic soundings: 10, NGDC multibeam sonar surveys: 10, Trackline soundings: 0.1.
            result: (missing)
        report:  (DQ_AbsoluteExternalPositionalAccuracy)
            nameOfMeasure:  Vertical Positional Accuracy Report
            evaluationMethodDescription:  The vertical accuracy of bathymetric and topographic features in the DEM is dependent upon the accuracy of the input datasets used to determine corresponding cell values. Topography: 10 to 15 meters. Vertical accuracy of input topographic datasets limits accuracy of corresponding cells in DEM. USGS NED DEM: 7 and 15 meters. SRTM DEM: 16 meters. DEM cell relative-contribution factors: SRTM: 10 NED: 100. Bathymetry: 2 meters to 5% of water depth. Vertical accuracy of input bathymetric datasets limits accuracy of corresponding cells in DEM. GPS-navigated NOS, NOS hydrographic LiDAR and USACE surveys (primarily in dredged shipping channels): about 0.1 meter. Early 20th-century NOS hydrographic soundings are limited by sparseness of deep-water soundings, and potentially large position accuracy of pre-satellite (i.e., GPS) navigation: several meters. Where present, USACE survey data supersede NOS hydrographic sounding data values in DEM. DEM cell-value relative-contribution factors: ENC soundings: 100, USACE surveys: 100, NOS hydrographic soundings: 10, NGDC multibeam sonar surveys: 10, Trackline soundings: 0.1. Gridding interpolation to determine cell values between sparse NOS hydrographic soundings in deep water degrades the vertical accuracy of deep-water elevations.
            result: (missing)
        report:  (DQ_CompletenessCommission)
            evaluationMethodDescription:  NGDC made every effort to obtain all available digital topographic and bathymetric datasets in the region for use in building the DEM.
            result: (unknown)
        report:  (DQ_ConceptualConsistency)
            measureDescription:  Datasets were visually compared internally and externally (with other overlapping datasets and satellite images and maps) in ESRI ArcGIS for identification of anomalous elevations or data inconsistencies. Where elevation inconsistencies occurred, the most recent and/or highest resolution data set was selected for use in that region. Elevations in the older and/or lower-resolution datasets were deleted prior to building the DEM.
            result: (unknown)
        lineage:  (LI_Lineage)
            processStep:  (LE_ProcessStep)
                description:  All datasets obtained by NGDC were converted to common horizontal and vertical datums of WGS84 geographic and Mean Higher High Water, respectively, using FME. They were also converted to common file format, ESRI point shapefiles, for visualization and inspection.
                dateTime:
                  DateTime:  2009-01-15T00:00:00
                processor:  (CI_ResponsibleParty)
                    individualName:  Barry W. Eakins
                    organisationName:  NOAA National Centers for Environmental Information
                    positionName:  Research Scientist
                    contactInfo:  (CI_Contact)
                        phone:  (CI_Telephone)
                            voice:  303-497-6505
                        address:  (CI_Address)
                            deliveryPoint:  325 Broadway, E/GC3
                            city:  Boulder
                            administrativeArea:  Colorado
                            postalCode:  80305-3328
                            country:  USA
                            electronicMailAddress:  Barry.Eakins@noaa.gov
                        hoursOfService:  9am-5pm, M-F, Mountain Time
                        contactInstructions:  Contact Marine Geology and Geophysics Division
                    role:  (CI_RoleCode) pointOfContact
            processStep:  (LE_ProcessStep)
                description:  Datasets were visually inspected with ArcGIS for identification and editing of data anomalies. Datasets were then compared with overlapping datasets to ensure data consistency.
                dateTime:
                  DateTime:  2009-01-29T00:00:00
            processStep:  (LE_ProcessStep)
                description:  xyz files of the bathymetric data were surfaced using GMT's 'surface' tool onto a 8/15 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.
                dateTime:
                  DateTime:  2009-02-12T00:00:00
            processStep:  (LE_ProcessStep)
                description:  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.
                dateTime:
                  DateTime:  2009-02-26T00:00:00
            processStep:  (LE_ProcessStep)
                description:  The DEM was quantitatively evaluated by comparing with source datasets. 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.
                dateTime:
                  DateTime:  2009-03-12T00:00:00
            source:  (LI_Source)
                description:  Source Contribution: hydrographic surveys downloaded from web site. ; Source Type: online
                sourceCitation:  (CI_Citation)
                    title:  NOS Hydrographic Surveys
                    date:  (CI_Date)
                        date:  2009-01-01
                        dateType:  (CI_DateTypeCode) publication
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName:  DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
                        role:  (CI_RoleCode) originator
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName: (inapplicable)
                        contactInfo:  (CI_Contact)
                            onlineResource:  (CI_OnlineResource)
                                linkage: https://www.ngdc.noaa.gov/mgg/bathymetry/hydro.html
                                name:  NOS Hydrographic Survey Database
                                description:  Digital database of NOS hydrographic surveys that date back to the late 19th century.
                                function:  (CI_OnLineFunctionCode) download
                        role: (inapplicable)
                sourceExtent:  (EX_Extent)
                    temporalElement:  (EX_TemporalExtent)
                        extent:
                          TimePeriod:
                            beginPosition:  1896-01-01
                            endPosition:  2002-01-01
            source:  (LI_Source)
                description:  Source Contribution: downloaded from web site. ; Source Type: online
                sourceCitation:  (CI_Citation)
                    title:  Electronic Navigational Charts
                    date:  (CI_Date)
                        date:  2009-01-01
                        dateType:  (CI_DateTypeCode) publication
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName:  DOC/NOAA/NOS/OCS > Office of Coast Survey, National Ocean Service, NOAA, U.S. Department of Commerce
                        role:  (CI_RoleCode) originator
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName: (inapplicable)
                        contactInfo:  (CI_Contact)
                            onlineResource:  (CI_OnlineResource)
                                linkage: http://www.nauticalcharts.noaa.gov/mcd/enc/index.htm
                                name:  OCS Electronic Navigational Charts
                                description:  Digital database of NOAA nautical chart information.
                                function:  (CI_OnLineFunctionCode) download
                        role: (inapplicable)
                sourceExtent:  (EX_Extent)
                    temporalElement:  (EX_TemporalExtent)
                        extent:
                          TimeInstant:
                            timePosition:  2009-01-01
            source:  (LI_Source)
                description:  Source Contribution: multibeam surveys downloaded from web site. ; Source Type: online
                sourceCitation:  (CI_Citation)
                    title:  NGDC Multibeam Surveys
                    date:  (CI_Date)
                        date:  2009-01-01
                        dateType:  (CI_DateTypeCode) publication
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName:  DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
                        role:  (CI_RoleCode) originator
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName: (inapplicable)
                        contactInfo:  (CI_Contact)
                            onlineResource:  (CI_OnlineResource)
                                linkage: https://www.ngdc.noaa.gov/mgg/bathymetry/multibeam.html
                                name:  NGDC Multibeam Survey Database
                                description:  Digital database of NGDC multibeam surveys.
                                function:  (CI_OnLineFunctionCode) download
                        role: (inapplicable)
                sourceExtent:  (EX_Extent)
                    temporalElement:  (EX_TemporalExtent)
                        extent:
                          TimePeriod:
                            beginPosition:  1999-01-01
                            endPosition:  2004-01-01
            source:  (LI_Source)
                description:  Source Contribution: Trackline surveys downloaded from web site. ; Source Type: online
                sourceCitation:  (CI_Citation)
                    title:  NGDC Trackline Surveys
                    date:  (CI_Date)
                        date:  2009-01-01
                        dateType:  (CI_DateTypeCode) publication
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName:  DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
                        role:  (CI_RoleCode) originator
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName: (inapplicable)
                        contactInfo:  (CI_Contact)
                            onlineResource:  (CI_OnlineResource)
                                linkage: https://www.ngdc.noaa.gov/mgg/geodas/trackline.html
                                name:  NGDC Trackline Survey Database
                                description:  Digital database of NGDC Trackline surveys.
                                function:  (CI_OnLineFunctionCode) download
                        role: (inapplicable)
                sourceExtent:  (EX_Extent)
                    temporalElement:  (EX_TemporalExtent)
                        extent:
                          TimePeriod:
                            beginPosition:  1913-01-01
                            endPosition:  1991-01-01
            source:  (LI_Source)
                description:  Source Contribution: gridded topographic data ; Source Type: online
                sourceCitation:  (CI_Citation)
                    title:  USGS NED topography
                    date:  (CI_Date)
                        date:  2009-01-01
                        dateType:  (CI_DateTypeCode) publication
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName:  DOI/USGS > U.S. Geological Survey, Department of the Interior
                        role:  (CI_RoleCode) originator
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName: (inapplicable)
                        contactInfo:  (CI_Contact)
                            onlineResource:  (CI_OnlineResource)
                                linkage: http://ned.usgs.gov/
                                name:  USGS National Elevation Dataset
                                description:  Digital database of U.S. topography, in raster form (DEM)
                                function:  (CI_OnLineFunctionCode) download
                        role: (inapplicable)
                sourceExtent:  (EX_Extent)
                    temporalElement:  (EX_TemporalExtent)
                        extent:
                          TimeInstant:
                            timePosition:  2006-01-01
            source:  (LI_Source)
                description:  Source Contribution: gridded topographic data downloaded from web site. ; Source Type: on web
                sourceCitation:  (CI_Citation)
                    title:  Shuttle Radar Topography Mission (SRTM)
                    date:  (CI_Date)
                        date:  2009-01-01
                        dateType:  (CI_DateTypeCode) publication
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName:  NASA > National Aeronautics and Space Administration
                        role:  (CI_RoleCode) originator
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName: (inapplicable)
                        contactInfo:  (CI_Contact)
                            onlineResource:  (CI_OnlineResource)
                                linkage: https://lta.cr.usgs.gov/SRTM1Arc
                                name:  Shuttle Radar Topography Mission
                                description:  global topography
                                function:  (CI_OnLineFunctionCode) download
                        role: (inapplicable)
                sourceExtent:  (EX_Extent)
                    temporalElement:  (EX_TemporalExtent)
                        extent:
                          TimeInstant:
                            timePosition:  2000-01-01
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    dataQualityInfo:  (DQ_DataQuality)
        scope:  (DQ_Scope)
            level:  (MD_ScopeCode) series
            levelDescription:  (MD_ScopeDescription)
                other:  Data Stewardship
        report:  (DQ_ConceptualConsistency)
            nameOfMeasure:  Data Stewardship Maturity Assessment
            measureIdentification:  (MD_Identifier)
                code:  MM-Stew
            measureDescription:  The Data Stewardship Maturity Matrix (DSMM) is a unified framework that defines criteria for each of nine components based on measurable practices, which can be used to apply a progressive, 6-level rating to an individual dataset, representing stewardship maturity stages rated as Not Assessed or Not Available (Level 0), adHoc (Level 1), minimum (Level 2), intermediate (Level 3), advanced (Level 4), and optimal (Level 5).
            evaluationMethodDescription:  Data Stewardship Maturity Assessment was evaluated by the metadata content editor for the NOAA OneStop project using the Scientific Data Stewardship Maturity Assessment Model Template v4.0.
            evaluationProcedure:  (CI_Citation)
                title:  The Scientific Data Stewardship Maturity Assessment Model Template
                date:  (CI_Date)
                    date:  2015-06-23
                    dateType:  (CI_DateTypeCode) publication
                edition:  NCDC-CICS-SMM_0001_Rev.1 v4.0 06/23/2015
                identifier:  (MD_Identifier)
                    code:
                      Anchor:  DOI link doi:10.10.6084/m9.figshare.1211954
                citedResponsibleParty:  (CI_ResponsibleParty)
                    individualName:  Peng, Ge
                    organisationName:  CICS-NC/NCEI
                    role:  (CI_RoleCode) author
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName: (inapplicable)
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://doi.org/10.6084/m9.figshare.1211954
                            protocol:  HTTPS
                            applicationProfile:  Web Browser
                            name:  The Scientific Data Stewardship Maturity Assessment Model Template
                            description:  Landing page for quality evaluation procedure.
                            function:  (CI_OnLineFunctionCode) information
                    role: (inapplicable)
                presentationForm:  (CI_PresentationFormCode) documentDigital
            dateTime:
              DateTime:  2016-06-21T00:00:00
            result:  (DQ_QuantitativeResult)
                valueUnit: (inapplicable)
                value:
                  Record:
                    CodeListValue:  optimal
                value:
                  Record:
                    CodeListValue:  advanced
                value:
                  Record:
                    CodeListValue:  intermediate
                value:
                  Record:
                    CodeListValue:  advanced
                value:
                  Record:
                    CodeListValue:  intermediate
                value:
                  Record:
                    CodeListValue:  intermediate
                value:
                  Record:
                    CodeListValue:  minimal
                value:
                  Record:
                    CodeListValue:  minimal
                value:
                  Record:
                    CodeListValue:  intermediate
            result:  (DQ_ConformanceResult)
                specification:  (CI_Citation)
                    title:  Akutan_AK_8_15s_MHHW_DEM
                    date:  (CI_Date)
                        date:  2016-06-21
                        dateType:  (CI_DateTypeCode) publication
                    edition:  v01r00
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
                        role:  (CI_RoleCode) publisher
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName: (missing)
                        contactInfo:  (CI_Contact)
                            onlineResource:  (CI_OnlineResource)
                                linkage: (template)
                        role: (missing)
                explanation:  Data Stewardship Maturity Assessment was evaluated by the metadata content editor for the NOAA OneStop project using the Scientific Data Stewardship Maturity Assessment Model Template v4.0.
                pass: (inapplicable)
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    metadataMaintenance:  (MD_MaintenanceInformation)
        maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) asNeeded
        maintenanceNote:  Modified for compliance to NCEI Template v1.2.
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    acquisitionInformation:  (MI_AcquisitionInformation)
        instrument:  (MI_Instrument)
            identifier: (inapplicable)
            type:  Light Detection and Ranging
        instrument:  (MI_Instrument)
            identifier: (inapplicable)
            type:  Multibeam Swath Bathymetry System
        instrument:  (MI_Instrument)
            identifier: (inapplicable)
            type:  Sound Navigation and Ranging
        operation:  (MI_Operation)
            identifier:  (MD_Identifier)
                code:  NTHMP DEM Gridding Project
            status: (missing)
            parentOperation: (inapplicable)
        platform:  (MI_Platform)
            identifier:  (MD_Identifier)
                code:  Digital Elevation Model
            description: (missing)
            instrument: (missing)