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referenceSystemInfo
identificationInfo
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identificationInfo
distributionInfo
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Society Islands (Leeward), French Polynesia Digital Elevation Model - 1 arc-second
 (MI_Metadata)
    fileIdentifier:  gov.noaa.ngdc.mgg.dem:11512
    language:  eng; USA
    characterSet:  (MD_CharacterSetCode) utf8
    hierarchyLevel:  (MD_ScopeCode) dataset
    contact:  (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
    dateStamp:  2017-11-13
    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:  2700
            resolution:
              Measure:  0.00027777778
        axisDimensionProperties:  (MD_Dimension)
            dimensionName:  (MD_DimensionNameTypeCode) column
            dimensionSize:  4320
            resolution:
              Measure:  0.00027777778
        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:  Instantaneous Water Level depth
                alternateTitle:  Instantaneous Water Level depth
                date:  (CI_Date)
                    date:  2012-08-10
                    dateType:  (CI_DateTypeCode) revision
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName: (withheld)
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:datum:EPSG::5831
                            name:  Instantaneous Water Level depth
                            description:  Link to Geographic Markup Language (GML) description of 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: http://www.epsg-registry.org/
                            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:datum:EPSG::5831
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    identificationInfo:  (MD_DataIdentification)
        citation:  (CI_Citation)
            title:  Society Islands (Leeward), French Polynesia Digital Elevation Model - 1 arc-second
            date:  (CI_Date)
                date:  2016-11-25
                dateType:  (CI_DateTypeCode) publication
            edition:  First
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  NOAA National Centers for Environmental Information
                role:  (CI_RoleCode) publisher
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  NOAA National Centers for Environmental Information
                role:  (CI_RoleCode) originator
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  NOAA PMEL Center for Tsunami Research (NCTR)
                positionName:  NOAA Center for Tsunami Research
                role:  (CI_RoleCode) collaborator
            presentationForm:  (CI_PresentationFormCode) mapDigital
            series:  (CI_Series)
                name:  NOAA Tsunami Inundation DEMs
                issueIdentification:  Society Islands (Leeward), French Polynesia Digital Elevation Model
        abstract:  NOAA's National Centers for Environmental Information 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.
        purpose:  Developed for the Pacific Marine Environmental Laboratory (PMEL), NOAA Center for Tsunami Research program in support of NOAA's tsunami forecasting and warning efforts.
        status:  (MD_ProgressCode) completed
        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
        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 > Topographical Relief Maps
            keyword:  Earth Science > Land Surface > Topography > Topographical Relief Maps
            keyword:  Earth Science > Oceans > Coastal Processes > Coastal Elevation
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  (CI_Citation)
                title:  NASA/GCMD Earth Science Keywords
                date: (unknown)
        descriptiveKeywords:  (MD_Keywords)
            keyword:  DEM > Digital Elevation Model
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  (CI_Citation)
                title:  NASA/GCMD Platform Keywords
                date: (unknown)
        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:  H: 1 meter - < 30 meters
            keyword:  V: 1 meter - < 10 meters
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  (CI_Citation)
                title:  NASA/GCMD Data Resolution Keywords
                date: (unknown)
        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:  Ocean > Pacific Ocean > South Pacific Ocean > Polynesia > French Polynesia
            keyword:  Vertical Location > Land Surface
            keyword:  Vertical Location > Sea Floor
            type:  (MD_KeywordTypeCode) place
            thesaurusName:  (CI_Citation)
                title:  NASA/GCMD Location Keywords
                date: (unknown)
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Society Islands
            keyword:  French Polynesia
            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_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)
            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.
        aggregationInfo:  (MD_AggregateInformation)
            aggregateDataSetName:  (CI_Citation)
                title:  Tsunami Inundation DEM Project
                date:  (CI_Date)
                    date:  2008-10-31
                    dateType:  (CI_DateTypeCode) publication
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  NOAA National Centers for Environmental Information
                    role:  (CI_RoleCode) custodian
                citedResponsibleParty:  (CI_ResponsibleParty)
                    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)
                citedResponsibleParty:  (CI_ResponsibleParty)
                    contactInfo:  (CI_Contact)
                        onlineResource:  (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
                    role: (inapplicable)
                presentationForm:  (CI_PresentationFormCode) mapDigital
                series:  (CI_Series)
                    name:  NOAA Coastal Inundation DEMs
                    issueIdentification:  Named by primary coastal city, state in DEM.
                otherCitationDetails:  NOAA's National Centers for Environmental Information (NCEI) is building high-resolution digital elevation models (DEMs) for select U.S. coastal regions to support inundation modeling and community mitigation and resiliency efforts. These integrated bathymetric-topographic DEMs support tsunami forecast and warning from NOAA's Tsunami Warning Centers. The DEMs are used in the MOST (Method of Splitting Tsunami) model developed by NOAA's Pacific Marine Environmental Laboratory (PMEL) to simulate tsunami generation, propagation, and inundation. Bathymetric, topographic, and shoreline data used in DEM compilation are obtained from various sources, including federal and academia data archived at NCEI, 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 the vertical tidal datum of Mean High Water (MHW) and horizontal datum of World Geodetic System 1984 (WGS84). Depending on the user requirements and available data, grid spacings for the DEMs range from 1/3 arc-second (~10 meters) to 3 arc-seconds (~90 meters).
            associationType:  (DS_AssociationTypeCode) largerWorkCitation
        aggregationInfo:  (MD_AggregateInformation)
            aggregateDataSetName:  (CI_Citation)
                title:  Digital Elevation Models of the Society Islands, French Polynesia: Procedures, Data Sources, and Analysis
                date:  (CI_Date)
                    date:  2016-11-25
                    dateType:  (CI_DateTypeCode) publication
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  NOAA National Centers for Environmental Information
                    role:  (CI_RoleCode) publisher
                citedResponsibleParty:  (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
                citedResponsibleParty:  (CI_ResponsibleParty)
                    positionName:  Citation URL
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://www.ngdc.noaa.gov/mgg/dat/dems/regional_tr/society_islands_leeward_1_isl_2016.pdf
                            name:  Digital Elevation Models of the Society Islands, French Polynesia: Procedures, Data Sources and Analysis
                            description:  Report describing the development of the Society Islands, French Polynesia DEMs
                            function:  (CI_OnLineFunctionCode) download
                    role: (inapplicable)
                otherCitationDetails:  9 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 7 Enterprise; ESRI ArcGIS 10.3.1.4959
        extent:  (EX_Extent)
            description:  ISO valid extents for Society Islands Leeward 1 sec. DEM
            geographicElement:  (EX_GeographicBoundingBox)
                westBoundLongitude:  -151.95
                eastBoundLongitude:  -150.75
                southBoundLatitude:  -17.10
                northBoundLatitude:  -16.35
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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)
        distributionFormat:  (MD_Format)
            name:  netCDF
            version:  4 Classic
        distributor:  (MD_Distributor)
            distributorContact:  (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
        transferOptions:  (MD_DigitalTransferOptions)
            onLine:  (CI_OnlineResource)
                linkage: https://www.ngdc.noaa.gov/thredds/dodsC/regional/society_islands_leeward_1_isl_2016.nc.html
                protocol:  OPeNDAP:OPeNDAP
                name:  OPeNDAP Dataset Access Form
                description:  OPeNDAP Dataset Access Form
                function:  (CI_OnLineFunctionCode) download
        transferOptions:  (MD_DigitalTransferOptions)
            onLine:  (CI_OnlineResource)
                linkage: https://www.ngdc.noaa.gov/thredds/fileServer/regional/society_islands_leeward_1_isl_2016.nc
                protocol:  HTTPS
                name:  Download NetCDF File
                description:  Download NetCDF File
                function:  (CI_OnLineFunctionCode) download
        transferOptions:  (MD_DigitalTransferOptions)
            onLine:  (CI_OnlineResource)
                linkage: https://www.ngdc.noaa.gov/thredds/wcs/regional/society_islands_leeward_1_isl_2016.nc?service=WCS&version=1.0.0&request=GetCapabilities
                protocol:  OGC:WCS
                name:  Web Coverage Service GetCapabilities
                description:  Web Coverage Service GetCapabilities
                function:  (CI_OnLineFunctionCode) information
        transferOptions:  (MD_DigitalTransferOptions)
            onLine:  (CI_OnlineResource)
                linkage: https://www.ngdc.noaa.gov/thredds/wms/regional/society_islands_leeward_1_isl_2016.nc?service=WMS&version=1.3.0&request=GetCapabilities
                protocol:  OGC:WMS
                name:  Web Map Service GetCapabilities
                description:  Web Map Service GetCapabilities
                function:  (CI_OnLineFunctionCode) information
        transferOptions:  (MD_DigitalTransferOptions)
            onLine:  (CI_OnlineResource)
                linkage: https://www.ngdc.noaa.gov/thredds/ncss/regional/society_islands_leeward_1_isl_2016.nc/dataset.html
                protocol:  HTTPS
                name:  Download a subset of the NetCDF
                description:  Download a subset of the NetCDF
                function:  (CI_OnLineFunctionCode) download
        transferOptions:  (MD_DigitalTransferOptions)
            onLine:  (CI_OnlineResource)
                linkage: https://www.ngdc.noaa.gov/thredds/ncml/regional/society_islands_leeward_1_isl_2016.nc?catalog=https%3A%2F%2Fwww.ngdc.noaa.gov%2Fthredds%2Fcatalog%2Fregional%2Fcatalog.html&dataset=regionalDatasetScan%2Fsociety_islands_leeward_1_isl_2016.nc
                protocol:  HTTPS
                name:  NetCDF Markup Language file
                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 DEM cell size and the accuracy of the input datasets used to determine corresponding cell values. Topography: 90 meters. Positional accuracy of input topographic datasets limits accuracy of corresponding cell values in DEM. SRTM topography: 10 meters, Lidar: less than 1 meter. DEM cell-value relative-contribution factors: Lidar: 1000, SRTM: 10 and 1. Bathymetry: less than 1 meter to a few kilometers. Positional accuracy of input bathymetric datasets limits accuracy of corresponding cell values in DEM. Topo-bathy lidar: less than 1 meter , Multibeam and single survey data: ranging from less than 1 meter to 10 meters . DEM cell-value relative-contribution factors: JAMSTEC multibeam: 100, KSOLF derived bathy: 100, LTER: 10, Bathymetric pre-surface: 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: less than 3 cm to 1 meter. Vertical accuracy of input topographic datasets limits accuracy of corresponding cells in DEM. DEM cell-value relative-contribution factors: Lidar: 1000, SRTM: 10 and 1. Bathymetry: less than 1 meter to 5% of water depth. Vertical accuracy of input bathymetric datasets limits accuracy of corresponding cells in DEM. Multibeam and singlebeam surveys: about 1% of water depth. DEM cell-value relative-contribution factors: JAMSTEC multibeam: 100, KSOLF derived bathy: 100, LTER: 10, Bathymetric pre-surface: 1. Gridding interpolation to determine cell values between sparse soundings in deep water degrades the vertical accuracy of corresponding elevations.
            result: (missing)
        report:  (DQ_CompletenessCommission)
            evaluationMethodDescription:  NCEI 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 NCEI were converted to common horizontal datum of WGS84 geographic using ArcGIS or GDAL. They were also converted to common file format for visualization and inspection.
                dateTime:
                  DateTime:  2016-10-01T00:00:00
                processor:  (CI_ResponsibleParty)
                    individualName:  Kelly Carignan
                    organisationName:  NOAA National Centers for Environmental Information
                    contactInfo:  (CI_Contact)
                        address:  (CI_Address)
                            electronicMailAddress:  kelly.carignan@noaa.gov
                    role:  (CI_RoleCode) pointOfContact
            processStep:  (LE_ProcessStep)
                description:  Datasets were visually inspected with ArcGIS and Global Mapper for identification and editing of data anomalies. Datasets were then compared with overlapping datasets to ensure data consistency.
                dateTime:
                  DateTime:  2016-10-20T00:00:00
            processStep:  (LE_ProcessStep)
                description:  Multibeam surveys were gridded to 3 arc-second spacing using MB-System's 'mbgrid' tool. The resulting Arc ASCII grid was imported into ArcGIS.
                dateTime:
                  DateTime:  2016-10-28T00:00:00
            processStep:  (LE_ProcessStep)
                description:  xyz files of the bathymetric data were surfaced using GMT's 'surface' tool onto a 6 arc-second grid that interpolated to fill empty cells. Points extracted every 5 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:  2016-11-03T00:00:00
            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 in quadrants, each with a 5% data buffer. The grids were imported in ArcGIS and seamlessly merged to create the final DEM.
                dateTime:
                  DateTime:  2016-11-12T00:00:00
            processStep:  (LE_ProcessStep)
                description:  The DEM was quantitatively evaluated by comparing with source datasets.
                dateTime:
                  DateTime:  2016-11-16T00:00:00
            source:  (LI_Source)
                description:  Source Contribution: nautical chart soundings
                sourceCitation:  (CI_Citation)
                    title:  NGA nautical chart soundings
                    date:  (CI_Date)
                        date: (inapplicable)
                        dateType:  (CI_DateTypeCode) publication
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName:  National Geospatial-Intelligence Agency (NGA)
                        role:  (CI_RoleCode) originator
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        positionName:  Citation URL
                        contactInfo:  (CI_Contact)
                            onlineResource:  (CI_OnlineResource)
                                linkage: https://www.nga.mil/Pages/Default.aspx
                                name:  National Geospatial-Intelligence Agency (NGA)
                                description:  The Digital Nautical Chart is produced by the National Geospatial-Intelligence Agency (NGA) and is an unclassified, vector-based digital database containing maritime significant features essential for safe marine navigation.
                                function:  (CI_OnLineFunctionCode) offlineAccess
                        role: (inapplicable)
                sourceExtent:  (EX_Extent)
                    temporalElement:  (EX_TemporalExtent)
                        extent:
                          TimePeriod:
                            beginPosition:  2014-05-14
                            endPosition:  2015-05-18
            source:  (LI_Source)
                description:  Source Contribution: North shore of Moorea gridded bathymetry
                sourceCitation:  (CI_Citation)
                    title:  MCR LTER: Coral Reef: Bathymetry Grid for North Shore
                    date:  (CI_Date)
                        date:  2012-02-29
                        dateType:  (CI_DateTypeCode) publication
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName:  Moorea Coral Reef Long-Term Ecological Research site (MCR LTER)
                        role:  (CI_RoleCode) publisher
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        positionName:  Citation URL
                        contactInfo:  (CI_Contact)
                            onlineResource:  (CI_OnlineResource)
                                linkage: http://mcr.lternet.edu/
                                name:  Moorea Coral Reef Long-Term Ecological Research site (MCR LTER)
                                description:  These bathymetric data are a combined product of digitized SHOM nautical charts, SRTM30plus bathymetry, small boat surveys, and bathymetry derived from Worldview-2 satellite imagery. Satellite data were collected in collaboration with Le centre de L'Environment de Moorea
                                function:  (CI_OnLineFunctionCode) download
                        role: (inapplicable)
                sourceExtent:  (EX_Extent)
                    temporalElement:  (EX_TemporalExtent)
                        extent:
                          TimePeriod:
                            beginPosition:  2010-01-01
                            endPosition:  2011-01-01
            source:  (LI_Source)
                description:  Source Contribution: Multibeam sonar data
                sourceCitation:  (CI_Citation)
                    title:  Multibeam Sonar Data YK04-08 Leg 1 and MR08-06 Leg 1
                    date:  (CI_Date)
                        date:  2013-01-25
                        dateType:  (CI_DateTypeCode) publication
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName:  Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
                        contactInfo:  (CI_Contact)
                            address:  (CI_Address)
                                electronicMailAddress:  dmo@jamstec.go.jp
                        role:  (CI_RoleCode) pointOfContact
                    otherCitationDetails:  The application Data Research System for Whole Cruise Information (DARWIN) disseminates data and sample information obtained by research vessels and submersibles of the Japan Agency for Marine-Earth Sciences (JAMSTEC).
                sourceExtent:  (EX_Extent)
                    temporalElement:  (EX_TemporalExtent)
                        extent:
                          TimePeriod:
                            beginPosition:  2004-08-12
                            endPosition:  2013-03-13
            source:  (LI_Source)
                description:  Source Contribution: singlebeam sonar data
                sourceCitation:  (CI_Citation)
                    title:  Singlebeam sonar data from SeaDataNet
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                    otherCitationDetails:  SeaDataNet has developed an efficient distributed Marine Data Management Infrastructure for the management of large and diverse sets of data deriving from in situ and remote observation of the seas and oceans.
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                description:  Source Contribution: optically derived bathymetry
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                    title:  Optically Derived Bathymetry for Huahine Island, French Polynesia
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                        date:  2014-08-22
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                        organisationName:  Khaled bin Sultan Living Oceans Foundation
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                description:  Source Contribution: Swath Sonar Survey Data
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                                description:  Multibeam Swath Sonar Survey Data
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                    title:  GEBCO 2014
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                description:  Source Contribution: Topographic-Bathymetric Lidar
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                    title:  Lidar Polynesie francaise 2015 Produit Moorea, Bora Bora, Tahiti SAU v. 20160630,
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                        date:  2016-06-30
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                        organisationName:  SHOM
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                    otherCitationDetails:  The data.shom.fr portal allows a large community of users (government services, public companies, etc.) to access the SHOM reference data, describing the maritime, coastal and oceanic physical environment. This portal also allows them to search, view (view) and access the geolocated data of SHOM.
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                description:  Gridded topographic data
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                    title:  Shuttle Radar Topography Mission 1 Arc-Second Global, 3 Arc-Second Global
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                        date:  2014-09-23
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                                linkage: http://earthexplorer.usgs.gov/
                                name:  Shuttle Radar Topography Mission
                                description:  The Shuttle Radar Topography Mission (SRTM) was a partnership between NASA and the National Geospatial-Intelligence Agency (NGA). Flown aboard the NASA Space Shuttle Endeavour (11-22 February 2000), SRTM fulfilled its mission to map the world in three dimensions. The USGS is under agreement with NGA and NASA's Jet Propulsion Laboratory to distribute SRTM elevation products derived from the C-band radar data. SRTM utilized interferometric C-band Spaceborne Imaging Radar to generate elevation data over 80 percent of the Earth's land surface. Global SRTM data at a resolution of 1 arc-second have been edited to delineate and flatten water bodies, better define coastlines, remove spikes and wells, and fill small voids. Larger areas of missing data or voids were filled by the NGA using interpolation algorithms in conjunction with other sources of elevation data. The SRTM 1 Arc-Second Global data offer worldwide coverage of void filled data at a resolution of 1 arc-second (30 meters) and provide open distribution of this high-resolution global data set.
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