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Galveston Bay (G260) Bathymetric Digital Elevation Model - NOAA/NOS Estuarine Bathymetry
 (MI_Metadata)
    fileIdentifier:  gov.noaa.ngdc.mgg.dem:galveston_bay_G260_2018
    language:  eng; USA
    characterSet:  (MD_CharacterSetCode) utf8
    hierarchyLevel:  (MD_ScopeCode) dataset
    contact:  (CI_ResponsibleParty)
        organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
        positionName:  DEM Information
        contactInfo:  (CI_Contact)
            address:  (CI_Address)
                electronicMailAddress:  dem.info@noaa.gov
        role:  (CI_RoleCode) pointOfContact
    dateStamp:  2018-06-06
    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_Georectified)
        numberOfDimensions:  2
        axisDimensionProperties:  (MD_Dimension)
            dimensionName:  (MD_DimensionNameTypeCode) column
            dimensionSize:  13500
            resolution:
              Measure:  9.259259e-05
        axisDimensionProperties:  (MD_Dimension)
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            dimensionSize:  10800
            resolution:
              Measure:  9.259259e-05
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        transformationParameterAvailability:  true
        checkPointAvailability:  false
        pointInPixel:  (MD_PixelOrientationCode) upperLeft
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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
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                    organisationName: (withheld)
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::4326
                            name:  WGS 84
                            description:  GML of World Geodetic System 1984 coordinate reference system.
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                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:crs:EPSG::4326
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    referenceSystemInfo:  (MD_ReferenceSystem)
        referenceSystemIdentifier:  (RS_Identifier)
            authority:  (CI_Citation)
                title:  Mean Lower Low Water depth
                alternateTitle:  MLLW depth
                date:  (CI_Date)
                    date:  2012-08-10
                    dateType:  (CI_DateTypeCode) revision
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                            linkage: http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::5866
                            name:  MLLW depth
                            description:  GML for Mean Lower Low Water vertical coordinate reference system (in meters) available from the epsg-registry.
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                    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:crs:EPSG::5866
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    identificationInfo:  (MD_DataIdentification)
        citation:  (CI_Citation)
            title:  Galveston Bay (G260) Bathymetric Digital Elevation Model - NOAA/NOS Estuarine Bathymetry
            date:  (CI_Date)
                date:  2018-05-29
                dateType:  (CI_DateTypeCode) publication
            edition:  2
            identifier:  (MD_Identifier)
                code:
                  Anchor:  DOI doi:10.7289/V5KD1W7S
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  NOAA National Centers for Environmental Information
                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
            presentationForm:  (CI_PresentationFormCode) mapDigital
            series:  (CI_Series)
                name:  NOAA NOS Estuarine Bathymetry DEMs
                issueIdentification:  Galveston Bay
        abstract:  A 1/3 arc-second Mean Lower Low Water bathymetric DEM of NOS hydrographic survey data in Galveston Bay.
        purpose:  The objective of this project is to update NOAA NOS Estuarine Bathymetry Digital Elevation Models (DEMs), gridded representations of bathymetry for various estuaries in the United States, that were initially created in 1998 by the now defunct NOS Special Projects Office. Although these data still represent the ?best available? gridded depictions of bathymetry in some locations, they are primarily based on antiquated historical data and do not include many modern survey data, in particular, high resolution BAG format hydrographic data. NCEI will identify more recent NOS hydrographic survey data if available and update existing DEMs compliant with NOAA Data Directives and meeting the requirements for Data Management, Discoverability, Accessibility, Documentation, Readability, and Data Preservation and Stewardship as per the Big Earth Data Initiative (BEDI).
        status:  (MD_ProgressCode) completed
        pointOfContact:  (CI_ResponsibleParty)
            organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
            positionName:  DEM Information
            contactInfo:  (CI_Contact)
                address:  (CI_Address)
                    electronicMailAddress:  dem.info@noaa.gov
            role:  (CI_RoleCode) pointOfContact
        resourceMaintenance:  (MD_MaintenanceInformation)
            maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) irregular
        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 > Oceans > Coastal Processes > Coastal Elevation
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  (CI_Citation)
                title:  Global Change Master Directory (GCMD) Science Keywords
                date: (unknown)
        descriptiveKeywords:  (MD_Keywords)
            keyword:  1 meter - < 30 meters
            type:  (MD_KeywordTypeCode) dataResolution
            thesaurusName:  (CI_Citation)
                title:  Global Change Master Directory (GCMD) Horizontal Data Resolution Keywords
                date: (unknown)
        descriptiveKeywords:  (MD_Keywords)
            keyword:  1 meter - < 10 meters
            type:  (MD_KeywordTypeCode) dataResolution
            thesaurusName:  (CI_Citation)
                title:  Global Change Master Directory (GCMD) Vertical Data Resolution Keywords
                date: (unknown)
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Coastal Relief
            keyword:  Gridded elevations
            keyword:  Bathymetry
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  (CI_Citation)
                title:  Uncontrolled
                date: (unknown)
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Galveston Bay
            keyword:  Texas
            keyword:  United States
            type:  (MD_KeywordTypeCode) place
            thesaurusName:  (CI_Citation)
                title:  None
                date: (unknown)
        resourceConstraints:  (MD_LegalConstraints)
            useLimitation:  (MD_RestrictionCode) otherRestrictions
            otherConstraints:  Cite as: National Centers for Environmental Information, 2018. NOAA NOS Estuarine Bathymetry - Galveston Bay (G260). National Centers for Environmental Information, NOAA. doi:10.7289/V5KD1W7S [access date].
        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 Geophysical Data Center. 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:  NOAA NOS Estuarine Bathymetry
                alternateTitle:  Galveston Bay (G260)
                date:  (CI_Date)
                    date:  1999-01-01
                    dateType:  (CI_DateTypeCode) publication
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  National Oceanic and Atmospheric Administration(NOAA), National Ocean Service (NOS), Special Projects (SP)
                    positionName:  Chief, Integrated Planning and Technical Services
                    contactInfo:  (CI_Contact)
                        phone:  (CI_Telephone)
                            voice:  301-713-3000
                            facsimile:  301-713-4384
                        address:  (CI_Address)
                            deliveryPoint:  1305 East West Highway N/MB7
                            city:  Silver Spring
                            administrativeArea:  Maryland
                            postalCode:  20910
                            electronicMailAddress:  robert.wilson@noaa.gov
                    role:  (CI_RoleCode) originator
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  National Oceanic and Atmospheric Administration(NOAA), National Ocean Service (NOS), Special Projects (SP)
                    positionName:  Chief, Integrated Planning and Technical Services
                    contactInfo:  (CI_Contact)
                        phone:  (CI_Telephone)
                            voice:  301-713-3000
                            facsimile:  301-713-4384
                        address:  (CI_Address)
                            deliveryPoint:  1305 East West Highway N/MB7
                            city:  Silver Spring
                            administrativeArea:  Maryland
                            postalCode:  20910
                            electronicMailAddress:  robert.wilson@noaa.gov
                    role:  (CI_RoleCode) publisher
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  National Oceanic and Atmospheric Administration(NOAA), National Ocean Service (NOS), Special Projects (SP)
                    positionName:  Chief, Integrated Planning and Technical Services
                    contactInfo:  (CI_Contact)
                        phone:  (CI_Telephone)
                            voice:  301-713-3000
                            facsimile:  301-713-4384
                        address:  (CI_Address)
                            deliveryPoint:  1305 East West Highway N/MB7
                            city:  Silver Spring
                            administrativeArea:  Maryland
                            postalCode:  20910
                            electronicMailAddress:  robert.wilson@noaa.gov
                    role:  (CI_RoleCode) pointOfContact
                otherCitationDetails:  The NOS Special Projects Office was dissolved around 2013. The Estuarine Bathymetry DEM products were assimilated by NCEI in 2016 for archive and redistribution.
            associationType:  (DS_AssociationTypeCode) largerWorkCitation
            initiativeType:  (DS_InitiativeTypeCode) campaign
        aggregationInfo:  (MD_AggregateInformation)
            aggregateDataSetName:  (CI_Citation)
                title:  Big Earth Data Initiative (BEDI): Archival and Updates to NOAA Estuarine Bathymetry Grids
                date:  (CI_Date)
                    date:  2017-05-17
                    dateType:  (CI_DateTypeCode) publication
            associationType:  (DS_AssociationTypeCode) largerWorkCitation
            initiativeType:  (DS_InitiativeTypeCode) project
        spatialRepresentationType:  (MD_SpatialRepresentationTypeCode) grid
        language:  eng; USA
        characterSet:  (MD_CharacterSetCode) utf8
        topicCategory:  (MD_TopicCategoryCode) oceans
        topicCategory:  (MD_TopicCategoryCode) elevation
        environmentDescription:  Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.5.0.6491
        extent:  (EX_Extent)
            geographicElement:  (EX_GeographicBoundingBox)
                westBoundLongitude:  -95.499999986
                eastBoundLongitude:  -94.250000021
                southBoundLatitude:  29.000000007
                northBoundLatitude:  29.999999979
        supplementalInformation:  Other sources of bathymetry may exist within DEM boundaries.
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    identificationInfo:  (SV_ServiceIdentification)
        citation:  (CI_Citation)
            title:  Digital Elevation Model Footprints ArcGIS Map Service
            date:  (CI_Date)
                date:  2011-02-15
                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://ngdc.noaa.gov/mgg/coastal/coastal.html
                        protocol:  HTTPS
                        name:  Integrated Models of Coastal Relief 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=d41f39c8a6684c54b62c8f1ab731d5ad
                        protocol:  HTTPS
                        name:  NOAA GeoPlatform Entry for Digital Elevation Model Footprints
                        description:  NOAA GeoPlatform listing for Digital Elevation Model Footprints ArcGIS Map Service
                        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://gis.ngdc.noaa.gov/arcgis/rest/services/DEM_global_mosaic_hillshade/ImageServer
                        protocol:  ESRI:ArcGIS
                        name:  DEM Global Mosaic (Color Shaded Relief)
                        description:  Color shaded relief visualization of a global seamless bathymetry/topography mosaic of digital elevation models at NOAA/NCEI.
                        function:  (CI_OnLineFunctionCode) search
                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: http://gis.ngdc.noaa.gov/arcgis/rest/services/DEM_global_mosaic/ImageServer
                        protocol:  ESRI:ArcGIS
                        name:  DEM Global Mosaic (Elevation Values)
                        description:  A global seamless bathymetry/topography mosaic of digital elevation models at NOAA/NCEI.
                        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:  Jesse Varner
            organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
            contactInfo:  (CI_Contact)
                address:  (CI_Address)
                    electronicMailAddress:  Jesse.Varner@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:  2018-03-15
                    dateType:  (CI_DateTypeCode) publication
                edition:  8.6
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  NASA Goddard Space Flight Center, Earth Science Data and Information System
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-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 Map Service
        serviceTypeVersion:  10.3
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                extentTypeCode:  1
                westBoundLongitude:  -180
                eastBoundLongitude:  180
                southBoundLatitude:  -90
                northBoundLatitude:  90
        couplingType:  (SV_CouplingType) tight
        containsOperations:  (SV_OperationMetadata)
            operationName:  ArcGIS for Server REST endpoint for dynamic map service
            DCP: (unknown)
            connectPoint:  (CI_OnlineResource)
                linkage: https://maps.ngdc.noaa.gov/arcgis/rest/services/web_mercator/dem_extents/MapServer
                protocol:  HTTPS
                applicationProfile:  ESRI Map Rest Specification
                name:  Digital Elevation Model Footprints ArcGIS Dynamic Map Service
                description:  REST endpoint for Digital Elevation Model Footprints ArcGIS dynamic map service
                function:  (CI_OnLineFunctionCode) search
        containsOperations:  (SV_OperationMetadata)
            operationName:  WMS Get Capabilities
            DCP:
            connectPoint:  (CI_OnlineResource)
                linkage: https://maps.ngdc.noaa.gov/arcgis/services/web_mercator/dem_extents/MapServer/WMSServer?request=GetCapabilities&service=WMS
                protocol:  OGC:WMS
                applicationProfile: http://opengis.net/spec/wms
                name:  Digital Elevation Model Footprints Web Map Service (WMS)
                description:  Capabilities document for Open Geospatial Consortium Web Map Service for Digital Elevation Model Footprints
                function:  (CI_OnLineFunctionCode) search
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    identificationInfo:  (SV_ServiceIdentification)
        citation:  (CI_Citation)
            title:  Digital Elevation Models: Color Shaded Relief ArcGIS Image Service
            date:  (CI_Date)
                date:  2011-10-19
                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://ngdc.noaa.gov/mgg/coastal/coastal.html
                        protocol:  HTTPS
                        name:  Integrated Models of Coastal Relief at NGDC
                        description:  Please see website for more information about Coastal DEMs.
                        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=feb3c625dc094112bb5281c17679c769
                        protocol:  HTTPS
                        name:  NOAA GeoPlatform Entry for Digital Elevation Models: Color Shaded Relief
                        description:  NOAA GeoPlatform listing for Digital Elevation Models: Color Shaded Relief
                        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: http://maps.ngdc.noaa.gov/arcgis/rest/services/web_mercator/dem_extents/MapServer
                        protocol:  ESRI:ArcGIS
                        name:  DEM Footprints ArcGIS Map Service
                        description:  A map service showing the location and coverage of land and seafloor digital elevation models (DEMs) available.
                        function:  (CI_OnLineFunctionCode) search
                role:  (CI_RoleCode) publisher
        abstract:  This is an ArcGIS image service showing color shaded relief visualizations of high-resolution digital elevation models (DEMs) of U.S. coastal regions. NOAA's National Geophysical Data Center (NGDC) 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. DEMs included in this visualization: High-resolution DEMs of select U.S. coastal communities and surrounding areas. Most are at a resolution of 1/3 to 1 arc-second (approx 10-30 m); U.S. Coastal Relief Model: A 3 arc-second (approx 90 m) comprehensive view of the conterminous U.S. coastal zone, Puerto Rico, and Hawaii; Southern Alaska Coastal Relief Model: A 24 arc-second (approx. 500 m) model of Southern Alaska, spanning the Bering Sea, Aleutian Islands, and Gulf of Alaska. This map service can be used as a basemap. It has a transparent background, so it can also be shown as a layer on top of a different basemap. Please see NGDC's corresponding DEM Footprints map service for polygon footprints and more information about the individual DEMs used to create this composite view.
        pointOfContact:  (CI_ResponsibleParty)
            individualName:  Jesse Varner
            organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
            contactInfo:  (CI_Contact)
                address:  (CI_Address)
                    electronicMailAddress:  Jesse.Varner@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:  2018-03-15
                    dateType:  (CI_DateTypeCode) publication
                edition:  8.6
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  NASA Goddard Space Flight Center, Earth Science Data and Information System
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-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:  10.2
        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 for Server REST endpoint for image service
            DCP: (unknown)
            connectPoint:  (CI_OnlineResource)
                linkage: http://gis.ngdc.noaa.gov/arcgis/rest/services/dem_hillshades/ImageServer
                protocol:  ESRI:ArcGIS
                applicationProfile:  ArcGIS Map Service
                name:  Digital Elevation Models: Color Shaded Relief ArcGIS Image Service
                description:  REST endpoint for Digital Elevation Models: Color Shaded Relief ArcGIS image service
                function:  (CI_OnLineFunctionCode) search
        containsOperations:  (SV_OperationMetadata)
            operationName:  WMS Get Capabilities
            DCP:
            connectPoint:  (CI_OnlineResource)
                linkage: http://gis.ngdc.noaa.gov/arcgis/services/dem_hillshades/ImageServer/WMSServer?request=GetCapabilities&service=WMS
                protocol:  OGC:WMS
                applicationProfile:  Open Geospatial Consortium Web Map Service (WMS)
                name:  Digital Elevation Models: Color Shaded Relief Web Map Service (WMS)
                description:  Capabilities document for Open Geospatial Consortium Web Map Service for Digital Elevation Models: Color Shaded Relief
                function:  (CI_OnLineFunctionCode) search
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    contentInfo:  (MI_CoverageDescription)
        attributeDescription:
          RecordType:  Measure of elevation values in meters.
        contentType:  (MD_CoverageContentTypeCode) image
        dimension:  (MI_Band)
            units:
              BaseUnit:
                identifier:  urn:ogc:def:uom:OGC::m
                name:  meter
                unitsSystem:  http://www.bipm.fr/en/si/
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    distributionInfo:  (MD_Distribution)
        distributionFormat:  (MD_Format)
            name:  netCDF
            version:  4 Classic
        distributor:  (MD_Distributor)
            distributorContact:  (CI_ResponsibleParty)
                organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
                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/fileServer/regional/galveston_bay_G260_2018.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/dodsC/regional/galveston_bay_G260_2018.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/wcs/regional/galveston_bay_G260_2018.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/galveston_bay_G260_2018.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/galveston_bay_G260_2018.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/galveston_bay_G260_2018.nc?catalog=https%3A%2F%2Fwww.ngdc.noaa.gov%2Fthredds%2Fcatalog%2Fregional%2Fcatalog.html&dataset=regionalDatasetScan%2Fgalveston_bay_G260_2018.nc
                protocol:  HTTPS
                name:  NetCDF Markup Language file
                description:  NetCDF Markup Language file
                function:  (CI_OnLineFunctionCode) information
        transferOptions:  (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
        transferOptions:  (MD_DigitalTransferOptions)
            onLine:  (CI_OnlineResource)
                linkage: https://maps.ngdc.noaa.gov/viewers/bathymetry/?layers=dem
                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
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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 features in the DEM is dependent upon DEM cell size and the accuracy of the input datasets used to determine corresponding cell values. Early 20th-century NOS soundings are limited by sparseness of soundings, and potentially large positional accuracy of pre-satellite (i.e., GPS) navigation - several meters.
            result: (missing)
        report:  (DQ_AbsoluteExternalPositionalAccuracy)
            nameOfMeasure:  Vertical Positional Accuracy Report
            evaluationMethodDescription:  The vertical accuracy of bathymetric features in the DEM is dependent upon DEM cell size and the accuracy of the input datasets used to determine corresponding cell values. Gridding interpolation to determine cell values between sparse soundings degrades the vertical accuracy of corresponding elevations.
            result: (missing)
        report:  (DQ_CompletenessCommission)
            evaluationMethodDescription:  Datasets were visually compared with ArcGIS for identification of anomalous elevations or data inconsistencies along with cell registration.
            result: (unknown)
        lineage:  (LI_Lineage)
            processStep:  (LE_ProcessStep)
                description:  The original DEM footprint shapefile was edited and converted to a raster with elevation value set to zero and used as a mask to clip out a subset of the source DEMs for the final gridded bathymetry data product.
                dateTime: (unknown)
            source:  (LI_Source)
                description:  Source Contribution: Shoreline position
                sourceCitation:  (CI_Citation)
                    title:  NOS Estuarine Bathymetry footprint
                    date:  (CI_Date)
                        date:  2006-06-23
                        dateType:  (CI_DateTypeCode) publication
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName:  National Oceanic and Atmospheric Administration(NOAA), National Ocean Service (NOS), Special Projects (SP)
                        positionName:  Chief, Integrated Planning and Technical Services
                        contactInfo:  (CI_Contact)
                            phone:  (CI_Telephone)
                                voice:  301-713-3000
                                facsimile:  301-713-4384
                            address:  (CI_Address)
                                deliveryPoint:  1305 East West Highway N/MB7
                                city:  Silver Spring
                                administrativeArea:  Maryland
                                postalCode:  20910
                                electronicMailAddress:  robert.wilson@noaa.gov
                        role:  (CI_RoleCode) pointOfContact
                    presentationForm:  (CI_PresentationFormCode) mapDigital
                sourceExtent:  (EX_Extent)
                    temporalElement:  (EX_TemporalExtent)
                        extent:
                          TimeInstant:
                            timePosition:  2006-06-23
            source:  (LI_Source)
                description:  Source Contribution: Gridded bathymetry
                sourceCitation:  (CI_Citation)
                    title:  Upper Texas Coast 1/9 arc-second NAVD 88 Coastal Digital Elevation Model
                    date:  (CI_Date)
                        date:  2017-12-01
                        dateType:  (CI_DateTypeCode) publication
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName:  NOAA National Centers for Environmental Information
                        role:  (CI_RoleCode) publisher
                    otherCitationDetails:  See NCEI Upper Texas Coast 1/9 arc-second NAVD 88 Coastal Digital Elevation Model documentation for DEM data sources and development.
            source:  (LI_Source)
                description:  Source Contribution: vertical datum transformation tool
                sourceCitation:  (CI_Citation)
                    title:  VDatum software v. 3.7
                    date:  (CI_Date)
                        date:  2017-09-07
                        dateType:  (CI_DateTypeCode) publication
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName:  DOC/NOAA/NOS 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: https://vdatum.noaa.gov/welcome.html
                                name:  VDatum
                                description:  Vertical Datum Transformation tool
                                function:  (CI_OnLineFunctionCode) download
                        role: (inapplicable)
                    presentationForm:  (CI_PresentationFormCode) modelDigital
                    otherCitationDetails:  Louisiana/Texas - western Louisiana to Galveston Bay, Version 01; Texas - Lagoons, Galveston Bay to Matagorda Island, Version 01; Texas - Shelf, Galveston Bay to Matagorda Island, Version 01
                sourceExtent:  (EX_Extent)
                    temporalElement:  (EX_TemporalExtent)
                        extent:
                          TimeInstant:
                            timePosition:  2017-09-07
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    metadataMaintenance:  (MD_MaintenanceInformation)
        maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) annually
        dateOfNextUpdate:  2019-03-01
        contact:  (CI_ResponsibleParty)
            individualName:  Kelly Carignan
            organisationName:  DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
            contactInfo:  (CI_Contact)
                address:  (CI_Address)
                    electronicMailAddress:  kelly.carignan@noaa.gov
            role:  (CI_RoleCode) pointOfContact