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referenceSystemInfo
referenceSystemInfo
identificationInfo
distributionInfo
dataQualityInfo
metadataMaintenance

Tampa Bay Topographic/Bathymetric Digital Elevation Model
 (MI_Metadata)
    fileIdentifier:  gov.noaa.ngdc.mgg.dem:722
    language:  eng; USA
    characterSet:  (MD_CharacterSetCode) utf8
    hierarchyLevel:  (MD_ScopeCode) dataset
    contact:  (CI_ResponsibleParty)
        individualName:  Barry W. Eakins
        organisationName:  DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
        positionName:  Research Scientist
        contactInfo:  (CI_Contact)
            phone:  (CI_Telephone)
                voice:  303-497-6505
                facsimile:  303-497-6513
            address:  (CI_Address)
                deliveryPoint:  NOAA/NESDIS/NGDC
                deliveryPoint:  325 Broadway, E/GC3
                city:  Boulder
                administrativeArea:  Colorado
                postalCode:  80305-3328
                country:  USA
                electronicMailAddress:  Barry.Eakins@noaa.gov
            hoursOfService:  9am-5pm, M-F, Mountain Time
            contactInstructions:  Contact NGDC's Marine Geology and Geophysics Division. http://www.ngdc.noaa.gov/mgg/aboutmgg/contacts.html
        role:  (CI_RoleCode) pointOfContact
    dateStamp:  2012-12-21
    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:  0.000278
        axisDimensionProperties:  (MD_Dimension)
            dimensionName:  (MD_DimensionNameTypeCode) column
            dimensionSize:  1800
            resolution:
              Measure:  0.000278
        axisDimensionProperties:  (MD_Dimension)
            dimensionName:  (MD_DimensionNameTypeCode) vertical
            dimensionSize:  1
        cellGeometry:  (MD_CellGeometryCode) area
        transformationParameterAvailability:
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    referenceSystemInfo:  (MD_ReferenceSystem)
        referenceSystemIdentifier:  (RS_Identifier)
            authority:  (CI_Citation)
                title:  North American Datum 1983
                alternateTitle:  NAD83
                date:  (CI_Date)
                    date:  2007-01-19
                    dateType:  (CI_DateTypeCode) revision
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:crs:EPSG::4269
                            name:  NAD83
                            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:crs:EPSG::4269
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    referenceSystemInfo:  (MD_ReferenceSystem)
        referenceSystemIdentifier:  (RS_Identifier)
            authority:  (CI_Citation)
                title:  North American Vertical Datum 1988
                alternateTitle:  NAVD88
                date:  (CI_Date)
                    date:  2012-08-10
                    dateType:  (CI_DateTypeCode) revision
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:
                    contactInfo:  (CI_Contact)
                        onlineResource:  (CI_OnlineResource)
                            linkage: http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:datum:EPSG::5103
                            name:  NAVD88
                            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::5103
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    identificationInfo:  (MD_DataIdentification)
        citation:  (CI_Citation)
            title:  Tampa Bay Topographic/Bathymetric Digital Elevation Model
            date:  (CI_Date)
                date:  2001-04-05
                dateType:  (CI_DateTypeCode) publication
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  U.S. Geological Survey, EROS Data Center; and NOAA's Ocean Service, Office of Coast Survey (OCS)
                contactInfo:  (CI_Contact)
                    address:  (CI_Address)
                        city:  Sioux Falls
                        administrativeArea:  SD
                role:  (CI_RoleCode) publisher
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  United States Geological Survey, Earth Resources Observation Systems (EROS) Data Center
                role:  (CI_RoleCode) originator
            citedResponsibleParty:  (CI_ResponsibleParty)
                organisationName:  National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS), Coast Survey Development Laboratory (CSDL)
                role:  (CI_RoleCode) originator
            presentationForm:  (CI_PresentationFormCode) mapDigital
        abstract:  In this joint demonstration project for the Tampa Bay region, NOAA's National Ocean Service (NOS) and the U.S. Geological Survey (USGS) have merged NOAA bathymetric and USGS topographic data sets into a hybrid digital elevation model (DEM) with all data initially referenced to the ellipsoid, but transformable to any of 28 orthometric, 3-D, or tidal datums.
        purpose:  This dataset is intended for geospatial applications that require seamless land elevation and water depth information in coastal environments.
        status:  (MD_ProgressCode) completed
        pointOfContact:  (CI_ResponsibleParty)
            individualName:  Dean Gesch
            organisationName:  United States Geological Survey (USGS), Earth Resources Observation Systems (EROS) Data Center
            contactInfo:  (CI_Contact)
                phone:  (CI_Telephone)
                    voice:  605-594-6055
                address:  (CI_Address)
                    deliveryPoint:  EROS Data Center, 47914 252nd Street
                    city:  Sioux Falls
                    administrativeArea:  SD
                    postalCode:  57198
                    electronicMailAddress:  gesch@usgs.gov
                hoursOfService:  Monday thru Friday, 0800 to 1600, central time
            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
            keyword:  Earth Science > Land Surface > Topography > Topographical Relief
            keyword:  Earth Science > Oceans > Coastal Processes > Coastal Elevation
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  (CI_Citation)
                title:  NASA/GCMD Earth Science Keywords
                date:
        descriptiveKeywords:  (MD_Keywords)
            keyword:  DEM > Digital Elevation Model
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  (CI_Citation)
                title:  NASA/GCMD Platform Keywords
                date:
        descriptiveKeywords:  (MD_Keywords)
            keyword:  DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
            keyword:  WDC/MGG, BOULDER > World Data Center for Marine Geology and Geophysics, Boulder
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  (CI_Citation)
                title:  NASA/GCMD Data Center Keywords
                date:
        descriptiveKeywords:  (MD_Keywords)
            keyword:  V: < 1 meter
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  (CI_Citation)
                title:  NASA/GCMD Data Resolution Keywords
                date:
        descriptiveKeywords:  (MD_Keywords)
            keyword:  bathymetry/topography
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  (CI_Citation)
                title:  NOS Data Explorer Topic Category
                date:
        descriptiveKeywords:  (MD_Keywords)
            keyword:  United States
            keyword:  Tampa Bay
            keyword:  Florida
            type:  (MD_KeywordTypeCode) place
            thesaurusName:  (CI_Citation)
                title:  none
                date:
        resourceConstraints:  (MD_Constraints)
            useLimitation:  While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
        resourceConstraints:  (MD_LegalConstraints)
            useConstraints:  (MD_RestrictionCode) otherRestrictions
            otherConstraints:  Use Constraints: Because the source bathymetric and topographic data vary in density and accuracy, users need to be made aware of the spatially varying quality of the merged model. In some areas, the spacing of the soundings would support gridding at a much higher resolution than 1-arc second, where in other areas the values of the 1-arc-second grid were interpolated based only on distant points. Likewise, the vertical accuracy of the model varies spatially, due mainly to the wide variety of dates and data collection technologies used for source data acquisition. A merged raster model at a uniform grid cell spacing was produced because most users require such a product for their computer mapping systems.
        resourceConstraints:  (MD_LegalConstraints)
            accessConstraints:  (MD_RestrictionCode) otherRestrictions
            otherConstraints:  Access Constraints: None
        spatialRepresentationType:  (MD_SpatialRepresentationTypeCode) grid
        language:  eng; USA
        topicCategory:  (MD_TopicCategoryCode) oceans
        topicCategory:  (MD_TopicCategoryCode) elevation
        environmentDescription:  Native Dataset Environment: ESRI ArcInfo 8.0
        extent:  (EX_Extent)
            geographicElement:  (EX_GeographicBoundingBox)
                westBoundLongitude:  -82.875000
                eastBoundLongitude:  -82.375000
                southBoundLatitude:  27.375000
                northBoundLatitude:  28.125000
            temporalElement:  (EX_TemporalExtent)
                extent:
                  TimePeriod:
                    beginPosition:  1945-01-01
                    endPosition:  1999-01-01
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    distributionInfo:  (MD_Distribution)
        distributionFormat:  (MD_Format)
            name:  binary float
            version:  1
            specification:  binary float
            fileDecompressionTechnique:  WINZIP
        distributor:  (MD_Distributor)
            distributorContact:  (CI_ResponsibleParty)
                individualName:  Barry W. Eakins
                organisationName:  DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
                positionName:  Research Scientist
                contactInfo:  (CI_Contact)
                    phone:  (CI_Telephone)
                        voice:  303-497-6505
                        facsimile:  303-497-6513
                    address:  (CI_Address)
                        deliveryPoint:  NOAA/NESDIS/NGDC
                        deliveryPoint:  325 Broadway, E/GC3
                        city:  Boulder
                        administrativeArea:  Colorado
                        postalCode:  80305-3328
                        country:  USA
                        electronicMailAddress:  Barry.Eakins@noaa.gov
                    hoursOfService:  9am-5pm, M-F, Mountain Time
                    contactInstructions:  Contact NGDC's Marine Geology and Geophysics Division. http://www.ngdc.noaa.gov/mgg/aboutmgg/contacts.html
                role:  (CI_RoleCode) distributor
            distributionOrderProcess:  (MD_StandardOrderProcess)
                fees:  None
        transferOptions:  (MD_DigitalTransferOptions)
            transferSize:
              Real:  12600000
            onLine:  (CI_OnlineResource)
                linkage: http://www.ngdc.noaa.gov/dem/squareCellGrid/getArchive/717?gridFormat=ESRI+Arc+ASCII
                name:  Tampa Bay, FL 1 arc-second NAVD88 DEM
                description:  DEM and metadata file for the Tampa Bay DEM.
                function:  (CI_OnLineFunctionCode) download
            onLine:  (CI_OnlineResource)
                linkage: http://www.ngdc.noaa.gov/dem/squareCellGrid/download/722
                name:  Tampa Bay, FL 1 arc-second NAVD88 DEM
                description:  Download page for accessing DEM and metadata record.
                function:  (CI_OnLineFunctionCode) download
            onLine:  (CI_OnlineResource)
                linkage: http://www.ngdc.noaa.gov/dem/squareCellGrid/getArchive/722?gridFormat=binary+float
                name:  Tampa Bay, FL 1 arc-second NAVD88 DEM
                description:  Download page for accessing DEM and metadata record.
                function:  (CI_OnLineFunctionCode) download
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    dataQualityInfo:  (DQ_DataQuality)
        scope:  (DQ_Scope)
            level:  (MD_ScopeCode) dataset
        report:  (DQ_CompletenessCommission)
            evaluationMethodDescription:  Standard tools and datasets (VERTCON and GEOID99) from the National Geodetic Survey were used to transform the elevation data into the common ellipsoid vertical reference frame. The NED shoreline (interface of zero/non-zero elevations) was used to make the final selection of bathymetry and topography points for merging. All land elevations within 600 meters of the shoreline were converted from raster format to XYZ point data. All bathymetry points coinciding with areas of zero elevation in NED were selected. Because of the age of some of the hydrographic surveys, some of the soundings were located on areas that had been filled and are now represented as land in the DEM. These points were withheld from further processing.
            result:
        report:  (DQ_ConceptualConsistency)
            measureDescription:  The selected topography points within the shoreline buffer zone and the bathymetry points were gridded to produce a raster surface model with a 1-arc-second grid spacing to match the resolution of the USGS National Elevation Dataset (NED). The points were input to an implementation of the ANUDEM thin plate spline interpolation algorithm, which is optimized for generation of topographic surfaces. The bathymetry points could have been gridded independently of the topographic data, but the shoreline zone land elevations were included in the interpolation to ensure a better match of the bathymetric and topographic surfaces for the subsequent mosaicing step. To avoid introduction of any interpolation edge effects into the merged elevation model, the output grid from the interpolation was clipped to include only land elevations within 300 meters of the shoreline. The final processing step involved the mosaicing of the bathymetry grid and the NED elevation grid. The values in the 300-meter overlap area were blended by weighted averaging, where the weights for each grid are determined on a cell-by-cell basis according to the cell's proximity to the edges of the overlap area.
            result:
        lineage:  (LI_Lineage)
            processStep:  (LE_ProcessStep)
                description:  A seamless bathymetric/topographic digital elevation model (DEM) was developed by merging the "best available" bathymetric data from NOAA and topographic data for USGS. Each of the datasets was initially processed independently to apply the "best available" criteria to select the data to be merged. Prior to merging, the selected data were transformed to a common reference coordinate system, both horizontally and vertically.The selected topography points within the shoreline buffer zone and the bathymetry points were gridded to produce a raster surface model with a 1-arc-second grid spacing to match the resolution of NED. The points were input to an implementation of the ANUDEM thin plate spline interpolation algorithm, which is optimized for generation of topographic surfaces. The bathymetry points could have been gridded independently of the topographic data, but the shoreline zone land elevations were included in the interpolation to ensure a better match of the bathymetric and topographic surfaces for the subsequent mosaicing step. To avoid introduction of any interpolation edge effects into the merged elevation model, the output grid from the interpolation was clipped to include only land elevations within 300 meters of the shoreline. The final processing step involved the mosaicing of the bathymetry grid and the NED elevation grid. The values in the 300-meter overlap area were blended by weighted averaging, where the weights for each grid are determined on a cell-by-cell basis according to the cell's proximity to the edges of the overlap area. The resulting final merged product is a seamless bathymetric/topographic model covering the Tampa Bay region at a grid spacing of 1-arc-second. The vertical coordinates represent elevation in decimal meters relative to the GRS80 ellipsoid, and the horizontal coordinates are decimal degrees of latitude and longitude referenced to the NAD83 datum.Process Date Range is 2000 - 2001
                dateTime:
                  DateTime:  2001-01-01T00:00:00
            source:  (LI_Source)
                description:  Source Contribution: Bathymetric data was used to develop a seamless bathymetric/topographic DEM for the Tampa Bay region. Source Type: CD-ROM
                scaleDenominator:  (MD_RepresentativeFraction)
                    denominator:
                sourceCitation:  (CI_Citation)
                    title:  GEODAS Hydrographic Survey Database
                    date:  (CI_Date)
                        date:  2000-01-01
                        dateType:  (CI_DateTypeCode) publication
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName:  National Environmental Satellite, Data, and Information Service (NESDIS), National Geophysical Data Center (NGDC)
                        contactInfo:  (CI_Contact)
                            address:  (CI_Address)
                                city:  Boulder
                                administrativeArea:  CO
                        role:  (CI_RoleCode) publisher
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName:  National Oceanic and Atmospheric Administration (NOAA), National Environmental Satellite, Data, and Information Service (NESDIS), National Geophysical Data center (NGDC)
                        role:  (CI_RoleCode) originator
                sourceExtent:  (EX_Extent)
                    temporalElement:  (EX_TemporalExtent)
                        extent:
                          TimePeriod:
                            beginPosition:  1945-01-01
                            endPosition:  1996-01-01
            source:  (LI_Source)
                description:  Source Contribution: Topographic data was used to develop a seamless bathymetric/topographic DEM for the Tampa Bay region. Source Type: CD-ROM
                scaleDenominator:  (MD_RepresentativeFraction)
                    denominator:
                sourceCitation:  (CI_Citation)
                    title:  USGS National Elevation Dataset NED
                    date:  (CI_Date)
                        date:  1999-01-01
                        dateType:  (CI_DateTypeCode) publication
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName:  U.S. Geological Survey
                        contactInfo:  (CI_Contact)
                            address:  (CI_Address)
                                city:  Sioux Falls
                                administrativeArea:  SD
                        role:  (CI_RoleCode) publisher
                    citedResponsibleParty:  (CI_ResponsibleParty)
                        organisationName:  United States Geological Survey
                        role:  (CI_RoleCode) originator
                    presentationForm:  (CI_PresentationFormCode) mapDigital
                sourceExtent:  (EX_Extent)
                    temporalElement:  (EX_TemporalExtent)
                        extent:
                          TimeInstant:
                            timePosition:  1999-01-01
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    metadataMaintenance:  (MD_MaintenanceInformation)
        maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) annually
        dateOfNextUpdate:  2013-08-10
        maintenanceNote:  This metadata was automatically generated from the Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata standard (version FGDC-STD-012-2002) using the 2012-08-08 version of the FGDC RSE to ISO 19115-2 transform.
        maintenanceNote:  Translated from FGDC 2012-08-10T14:49:26.579-06:00
        maintenanceNote:  Last Metadata Review Date: 2013-08-10
        contact:  (CI_ResponsibleParty)
            individualName:  Barry W. Eakins
            organisationName:  DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
            positionName:  Research Scientist
            contactInfo:  (CI_Contact)
                phone:  (CI_Telephone)
                    voice:  303-497-6505
                    facsimile:  303-497-6513
                address:  (CI_Address)
                    deliveryPoint:  NOAA/NESDIS/NGDC
                    deliveryPoint:  325 Broadway, E/GC3
                    city:  Boulder
                    administrativeArea:  Colorado
                    postalCode:  80305-3328
                    country:  USA
                    electronicMailAddress:  Barry.Eakins@noaa.gov
                hoursOfService:  9am-5pm, M-F, Mountain Time
                contactInstructions:  Contact NGDC's Marine Geology and Geophysics Division. http://www.ngdc.noaa.gov/mgg/aboutmgg/contacts.html
            role:  (CI_RoleCode) pointOfContact