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Global Digital Elevation Models (DEM) - ETOPO1 Global Relief ModelspatialRepresentationInforeferenceSystemInfo referenceSystemInfo identificationInfo identificationInfo identificationInfo distributionInfo dataQualityInfo metadataMaintenance |
| (MI_Metadata) fileIdentifier: gov.noaa.ngdc:global language: eng; USA characterSet: (MD_CharacterSetCode) utf8 hierarchyLevel: (MD_ScopeCode) dataset contact: (CI_ResponsibleParty) organisationName: DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, 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: 2013-05-31 metadataStandardName: ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data metadataStandardVersion: ISO 19115-2:2009(E) return to top spatialRepresentationInfo: (MD_GridSpatialRepresentation) numberOfDimensions: 3 axisDimensionProperties: (MD_Dimension) dimensionName: (MD_DimensionNameTypeCode) row dimensionSize: 10801 resolution: Measure: 0.01666666667 axisDimensionProperties: (MD_Dimension) dimensionName: (MD_DimensionNameTypeCode) column dimensionSize: 21601 resolution: Measure: 0.01666666667 axisDimensionProperties: (MD_Dimension) dimensionName: (MD_DimensionNameTypeCode) vertical dimensionSize: 1 cellGeometry: (MD_CellGeometryCode) area transformationParameterAvailability: return to top 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: 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. 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::4326 return to top referenceSystemInfo: (MD_ReferenceSystem) referenceSystemIdentifier: (RS_Identifier) authority: (CI_Citation) title: Mean Sea Level depth alternateTitle: MSL depth 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:crs:EPSG::5715 name: MSL depth description: GML for Vertical CRS in EPGS Registry. 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::5715 return to top identificationInfo: (MD_DataIdentification) citation: (CI_Citation) title: Global Digital Elevation Models (DEM) - ETOPO1 Global Relief Model date: (CI_Date) date: 2009-01-01 dateType: (CI_DateTypeCode) publication edition: First citedResponsibleParty: (CI_ResponsibleParty) organisationName: DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce contactInfo: (CI_Contact) address: (CI_Address) city: Boulder administrativeArea: Colorado role: (CI_RoleCode) publisher citedResponsibleParty: (CI_ResponsibleParty) organisationName: DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce role: (CI_RoleCode) originator citedResponsibleParty: (CI_ResponsibleParty) positionName: Citation URL contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: http://www.ngdc.noaa.gov/mgg/global/global.html name: ETOPO1 Global Relief Model description: web access to ETOPO1 Global Relief Model function: (CI_OnLineFunctionCode) information role: abstract: In August 2008, the National Geophysical Data Center (NGDC), an office of the National Oceanic and Atmospheric Administration (NOAA), developed the ETOPO1 Global Relief Model as an improvement to the ETOPO2v2 Global Relief Model. ETOPO1 is available in "Ice Surface" (top of Antarctic and Greenland ice sheets) and "Bedrock" (base of the ice sheets) versions. Both versions of ETOPO1 were generated from diverse global and regional digital data sets, which were shifted to common horizontal and vertical datums, and then evaluated and edited as needed. Bathymetric, topographic, and shoreline data used in ETOPO1 were obtained from NGDC, Antarctic Digital Database (ADD), European Ice Sheet Modeling Initiative (EISMINT), Scientific Committee on Antarctic Research (SCAR), Japan Oceanographic Data Center (JODC), Caspian Environment Programme (CEP), Mediterranean Science Commission (CIESM), National Aeronautics and Space Administration (NASA), National Snow and Ice Data Center (NSIDC), Scripps Institute of Oceanography (SIO), and Leibniz Institute for Baltic Sea Research (LIBSR). ETOPO1 is vertically referenced to sea level, and horizontally referenced to the World Geodetic System of 1984 (WGS 84). Cell size for ETOPO1 is 1 arc-minute. purpose: Developed to support global research, exploration, and education status: (MD_ProgressCode) completed pointOfContact: (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 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 type: (MD_KeywordTypeCode) theme thesaurusName: (CI_Citation) title: NASA/GCMD Earth Science Keywords date: descriptiveKeywords: (MD_Keywords) keyword: INFOTERRA > Subject disciplines > Geophysics > Geophysics keyword: INFOTERRA > Subject disciplines > Geomorphology > Geomorphology type: (MD_KeywordTypeCode) theme thesaurusName: (CI_Citation) title: INFOTERRA Keyword Thesaurus date: descriptiveKeywords: (MD_Keywords) keyword: WDC/MGG, BOULDER > World Data Center for Marine Geology and Geophysics, Boulder keyword: DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce type: (MD_KeywordTypeCode) theme thesaurusName: (CI_Citation) title: NASA/GCMD Data Center Keywords date: descriptiveKeywords: (MD_Keywords) keyword: Global relief keyword: Gridded elevations keyword: Integrated bathymetry and topography type: (MD_KeywordTypeCode) theme thesaurusName: (CI_Citation) title: Uncontrolled date: descriptiveKeywords: (MD_Keywords) keyword: Geographic Region > Global Land keyword: Geographic Region > Global Ocean type: (MD_KeywordTypeCode) place thesaurusName: (CI_Citation) title: NASA/GCMD Location Keywords date: descriptiveKeywords: (MD_Keywords) keyword: ngda keyword: Elevation type: (MD_KeywordTypeCode) theme thesaurusName: (CI_Citation) title: Geospatial Platform 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) 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. aggregationInfo: (MD_AggregateInformation) aggregateDataSetName: (CI_Citation) title: ETOPO1 Global Relief Model date: (CI_Date) date: 2009-01-01 dateType: (CI_DateTypeCode) publication citedResponsibleParty: (CI_ResponsibleParty) organisationName: DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce contactInfo: (CI_Contact) address: (CI_Address) city: Boulder administrativeArea: CO role: (CI_RoleCode) publisher citedResponsibleParty: (CI_ResponsibleParty) organisationName: Christopher J. Amante role: (CI_RoleCode) originator citedResponsibleParty: (CI_ResponsibleParty) organisationName: Barry W. Eakins role: (CI_RoleCode) originator citedResponsibleParty: (CI_ResponsibleParty) positionName: Citation URL contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: http://www.ngdc.noaa.gov/mgg/global/relief/ETOPO1/docs/ETOPO1.pdf name: ETOPO1 1 Arc-Minute Global Relief Model: Procedures, Data Sources and Analysis description: Report describing the development of the ETOPO1 Global Relief Model function: (CI_OnLineFunctionCode) download role: otherCitationDetails: 19 pages associationType: (DS_AssociationTypeCode) crossReference initiativeType: (DS_InitiativeTypeCode) userGuide spatialRepresentationType: (MD_SpatialRepresentationTypeCode) grid language: eng; USA topicCategory: (MD_TopicCategoryCode) oceans topicCategory: (MD_TopicCategoryCode) geoscientificInformation topicCategory: (MD_TopicCategoryCode) elevation environmentDescription: Native Dataset Environment: Microsoft Windows 2000 Version 5.2 (Build 3790) Service Pack 2; ESRI ArcCatalog 9.2 extent: (EX_Extent) geographicElement: (EX_GeographicBoundingBox) westBoundLongitude: -180.00 eastBoundLongitude: 180.00 southBoundLatitude: -90.00 northBoundLatitude: 90.00 temporalElement: (EX_TemporalExtent) extent: TimePeriod: beginPosition: 1940-01-01 endPosition: 2008-01-01 return to top identificationInfo: Footprints ArcGIS Map Service return to top identificationInfo: (SV_ServiceIdentification) citation: (CI_Citation) title: Digital Elevation Models: Color Shaded Relief ArcGIS Map Service date: (CI_Date) date: 2011-10-19 dateType: (CI_DateTypeCode) creation citedResponsibleParty: (CI_ResponsibleParty) organisationName: DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, Department of Commerce contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: http://ngdc.noaa.gov/mgg/coastal/coastal.html name: Integrated Models of Coastal Relief at NGDC description: Please see NGDC's website for more information about Coastal DEMs at NGDC. function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) publisher citedResponsibleParty: (CI_ResponsibleParty) organisationName: DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, Department of Commerce contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: http://www.arcgis.com/home/item.html?id=7f11b445da1a45ccb76b403018302d25 name: ArcGIS Online Entry description: ArcGIS Online listing for Digital Elevation Models: Color Shaded Relief ArcGIS Map Service. function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) publisher citedResponsibleParty: (CI_ResponsibleParty) organisationName: DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, Department of Commerce contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: http://www.geoplatform.noaa.gov/home/item.html?id=0e85102781904d46b7c0ac541cb86267 name: NOAA Geoplatform Entry description: NOAA Geoplatform listing for Digital Elevation Models: Color Shaded Relief ArcGIS Map Service function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) publisher citedResponsibleParty: (CI_ResponsibleParty) organisationName: DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, 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 name: DEM Footprints ArcGIS Map Service description: A map service showing the location and coverage of land and seafloor digital elevation models (DEMs) available from NOAA's National Geophysical Data Center. function: (CI_OnLineFunctionCode) search role: (CI_RoleCode) publisher abstract: This is a tiled map 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/NGDC > National Geophysical Data Center, 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: NASA/GCMD Services Keywords date: citedResponsibleParty: (CI_ResponsibleParty) organisationName: NASA positionName: GCMD User Support Office contactInfo: (CI_Contact) address: (CI_Address) electronicMailAddress: gcmduso@gcmd.gsfc.nasa.gov onlineResource: (CI_OnlineResource) linkage: http://gcmd.nasa.gov/MailComments/MailComments.jsf?rcpt=gcmduso name: GCMD Feedback Form description: Have a Comment for the GCMD? function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) custodian citedResponsibleParty: (CI_ResponsibleParty) organisationName: contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: http://gcmd.nasa.gov/learn/keyword_list.html name: GCMD Keywords Page description: This page describes the NASA GCMD Keywords, how to reference those keywords and provides download instructions. 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 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 cached map service DCP: connectPoint: (CI_OnlineResource) linkage: http://maps.ngdc.noaa.gov/arcgis/rest/services/web_mercator/dem_hillshades_mosaic/MapServer protocol: http applicationProfile: ArcGIS Map Service name: Digital Elevation Models: Color Shaded Relief ArcGIS Cached Map Service description: REST endpoint for Digital Elevation Models: Color Shaded Relief ArcGIS cached map service function: (CI_OnLineFunctionCode) search containsOperations: (SV_OperationMetadata) operationName: WMS Get Capabilities DCP: connectPoint: (CI_OnlineResource) linkage: http://maps.ngdc.noaa.gov/soap/web_mercator/dem_hillshades_mosaic/MapServer/WMSServer?request=GetCapabilities%26service=WMS protocol: http 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 return to top distributionInfo: (MD_Distribution) distributionFormat: (MD_Format) name: netCDF, GRD98, binary, xyz, georeferenced tiff, ASCII xyz, ASCII raster, GRD98 binary raster, pdf, png, jpeg, kmz version: fileDecompressionTechnique: generally GZIP distributor: (MD_Distributor) distributorContact: (CI_ResponsibleParty) organisationName: DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, 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: http://www.ngdc.noaa.gov/mgg/global/global.html name: ETOPO1 Global Relief Model netCDF DEM description: Download NetCDF DEM, metadata and Readme file. function: (CI_OnLineFunctionCode) download transferOptions: (MD_DigitalTransferOptions) onLine: (CI_OnlineResource) linkage: http://www.ngdc.noaa.gov/mgg/global/global.html name: Global Digital Elevation Models (DEM) - ETOPO1 Global Relief Model Homepage description: Information, preview and access DEM, metadata record and development report. function: (CI_OnLineFunctionCode) information return to top 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 Ice surface global relief model is dependent upon the accuracy of the input datasets used to determine corresponding cell values. A qualitative assesment of horizontal accuracy was performed, but a quantitative assesment has not yet been performed. Topography: Positional accuracy of input topographic datasets limits accuracy of corresponding cell values in global relief model. Global relief model topographic cell-value relative-contribution factors: NASA SRTM30: 1, NGDC GLOBE: 1, NISDC Antarctica RAMP: 100, NGDC IBCAO: 10, NGDC Great Lakes: 10. Bathymetry: Positional accuracy of input bathymetric datasets limits accuracy of corresponding cell values in global relief model. Global relief model bathymetric cell-value relative-contribution factors: JODC bathymetry: 10, NGDC Gulf of California Bathymetry: 10, CEP Caspian Sea Bathymetry: 10, CIESM Mediterranean Sea Bathymetry: 10, SIO Measured and Estimated Seafloor Topography: 1, LIBSR Baltic Sea Bathymetry: 10, NGDC IBCAO: 10, NGDC U.S Coastal Relief Model: 10, NGDC Great Lakes Bathymetry: 10. The horizontal accuracy of bathymetric and topographic features in the Bedrock surface global relief model is dependent upon the accuracy of the input datasets used to determine corresponding cell values. A qualitative assessment of horizontal accuracy was performed, but a quantitative assessment has not yet been performed. Topography: Positional accuracy of input topographic datasets limits accuracy of corresponding cell values in global relief model. Global relief model topographic cell-value relative-contribution factors: NASA SRTM30: 1, NGDC GLOBE: 1, NISDC Greenland Bedrock: 100, EISMINT/SCAR Antarctic BEDMAP: 100, NGDC Great Lakes: 10. Bathymetry: Positional accuracy of input bathymetric datasets limits accuracy of corresponding cell values in global relief model. Global relief model bathymetric cell-value relative-contribution factors: JODC bathymetry: 10, NGDC Gulf of California Bathymetry: 10, CEP Caspian Sea Bathymetry: 10, CIESM Mediterranean Sea Bathymetry: 10, SIO Measured and Estimated Seafloor Topography: 1, LIBSR Baltic Sea Bathymetry: 10, NGDC IBCAO: 10, NGDC U.S Coastal Relief Model: 10, NGDC Great Lakes Bathymetry: 10. result: report: (DQ_AbsoluteExternalPositionalAccuracy) nameOfMeasure: Vertical Positional Accuracy Report evaluationMethodDescription: The vertical accuracy of bathymetric and topographic features in the Ice surface global relief model is dependent upon the accuracy of the input datasets used to determine corresponding cell values. A qualitative assesment of vertical accuracy was performed, but a quantitative assesment has not yet been performed. Vertical accuracy of input topographic datasets limits accuracy of corresponding cell values in global relief model. Global relief model topographic cell-value relative-contribution factors: NASA SRTM30: 1, NGDC GLOBE: 1, NISDC Antarctica RAMP: 100, NGDC IBCAO: 10, NGDC Great Lakes: 10. Bathymetry: Vertical accuracy of input bathymetric datasets limits accuracy of corresponding cell values in global relief model. Global relief model bathymetric cell-value relative-contribution factors: JODC bathymetry: 10, NGDC Gulf of California Bathymetry: 10, CEP Caspian Sea Bathymetry: 10, CIESM Mediterranean Sea Bathymetry: 10, SIO Measured and Estimated Seafloor Topography: 1, LIBSR Baltic Sea Bathymetry: 10, NGDC IBCAO: 10, NGDC U.S Coastal Relief Model: 10, NGDC Great Lakes Bathymetry: 10. The vertical accuracy of bathymetric and topographic features in the Bedrock surface global relief model is dependent upon the accuracy of the input datasets used to determine corresponding cell values. A qualitative assessment of vertical accuracy was performed, but a quantitative assessment has not yet been performed. Vertical accuracy of input topographic datasets limits accuracy of corresponding cell values in global relief model. Global relief model topographic cell-value relative-contribution factors: NASA SRTM30: 1, NGDC GLOBE: 1, NISDC Greenland Bedrock: 100, EISMINT/SCAR Antarctic BEDMAP: 100, NGDC Great Lakes: 10. Bathymetry: Vertical accuracy of input bathymetric datasets limits accuracy of corresponding cell values in global relief model. Global relief model bathymetric cell-value relative-contribution factors: JODC bathymetry: 10, NGDC Gulf of California Bathymetry: 10, CEP Caspian Sea Bathymetry: 10, CIESM Mediterranean Sea Bathymetry: 10, SIO Measured and Estimated Seafloor Topography: 1, LIBSR Baltic Sea Bathymetry: 10, NGDC IBCAO: 10, NGDC U.S Coastal Relief Model: 10, NGDC Great Lakes Bathymetry: 10. result: report: (DQ_CompletenessCommission) evaluationMethodDescription: NGDC made every effort to obtain all available digital topographic and bathymetric datasets for use in building the global relief model. result: 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 global relief model. result: lineage: (LI_Lineage) processStep: (LE_ProcessStep) description: All datasets obtained by NGDC were converted to common horizontal and vertical datums of WGS 84 and sea level, respectively, using FME. They were also converted to common file format, ESRI point shapefiles, for visualization and inspection. dateTime: DateTime: 2008-06-17T00:00:00 processor: (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 processStep: (LE_ProcessStep) description: Datasets were visually inspected with ArcGIS for identification and editing of data anomalies. Datasets were then compared with overlapping datasets to ensure data consistency. dateTime: DateTime: 2008-06-25T00:00:00 processStep: (LE_ProcessStep) description: Coastline datasets were adjusted to fit satellite imagery. dateTime: DateTime: 2008-06-30T00:00:00 processStep: (LE_ProcessStep) description: xyz files of the Measured and Estimated Seafloor Topography data (between -500 m and 0 m) were surfaced using GMT's 'surface' tool onto a 1 arc-minute cell size grid that interpolated to fill empty cells. Points extracted along the GSHHS coastline were also included, at -1 m elevation, to force bathymetric interpolation into the coastal zone. The resulting Arc ASCII grid was clipped to the coastline and the -120 m contour to remove values over land and non-coastal waters. dateTime: DateTime: 2008-07-10T00:00:00 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 the NSIDC Antarctica RAMP topography dataset. Least weight was given to the global datasets and the interpolated bathymetric surface. Gridding was performed in 16 regional tiles, each with a 5% data buffer. The grids were imported in ArcGIS and seamlessly merged to create the final global relief model. dateTime: DateTime: 2008-07-18T00:00:00 processStep: (LE_ProcessStep) description: ETOPO1 was bult as a global, grid-registered, 1 arc-minute grid that spans from pole to pole and from -180 degrees to 180 degrees in longitude. It is 21601 cells by 10801 cells in dimension, with multiple duplicate cells sitting atop the North and South poles and on the -180 degrees and 180 degrees longitude line. A cell-registered version (21600 by 10800 cells) was created from the grid-registered version by resampling, using GMT's 'grdsample' tool. This resampling introduces some flattening of relief, due to averaging of four grid-registered cell vlaues to produce one cell-registered value. Both types are global, though the grid-registered version should be considered the authoritative version. The cell-registered version may be more appropriate for creating maps and images. dateTime: DateTime: 2008-07-31T00:00:00 source: (LI_Source) description: Source Contribution: global shoreline data downloaded from web site ; Source Type: online sourceCitation: (CI_Citation) title: NGDC Global Self-consistent, Hierarchical, High-resolution Shoreline Database (GSHHS) date: (CI_Date) date: 2003-01-01 dateType: (CI_DateTypeCode) publication citedResponsibleParty: (CI_ResponsibleParty) organisationName: DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NEDIS, NOAA, U.S. Department of Commerce role: (CI_RoleCode) originator citedResponsibleParty: (CI_ResponsibleParty) positionName: Citation URL contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: http://www.ngdc.noaa.gov/mgg/shorelines/gshhs.html name: GSHHS - A Global Self-consistent, Hierarchical, High-resolution Shoreline Database description: global shoreline data function: (CI_OnLineFunctionCode) download role: sourceExtent: (EX_Extent) temporalElement: (EX_TemporalExtent) extent: TimePeriod: beginPosition: 1996-01-01 endPosition: 2003-01-01 source: (LI_Source) description: Source Contribution: Antarctica coastline data downloaded from web site ; Source Type: online sourceCitation: (CI_Citation) title: ADD Antarctica Coastline date: (CI_Date) date: 2006-01-01 dateType: (CI_DateTypeCode) publication citedResponsibleParty: (CI_ResponsibleParty) organisationName: Antarctica Digital Database (ADD) role: (CI_RoleCode) originator citedResponsibleParty: (CI_ResponsibleParty) positionName: Citation URL contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: http://www.add.scar.org/ name: Antarctica Coastline description: Antarctica coastline data function: (CI_OnLineFunctionCode) download role: sourceExtent: (EX_Extent) temporalElement: (EX_TemporalExtent) extent: TimePeriod: beginPosition: 1993-01-01 endPosition: 2006-01-01 source: (LI_Source) description: Source Contribution: Multibeam bathymetry data downloaded from web site ; Source Type: online sourceCitation: (CI_Citation) title: NGDC Gulf of California Bathymetry date: (CI_Date) date: 2006-01-01 dateType: (CI_DateTypeCode) publication citedResponsibleParty: (CI_ResponsibleParty) organisationName: DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NEDIS, NOAA, U.S. Department of Commerce role: (CI_RoleCode) originator citedResponsibleParty: (CI_ResponsibleParty) positionName: Citation URL contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: http://www.ngdc.noaa.gov/mgg/bathymetry/multibeam.html name: NGDC Multibeam Bathymetry Database description: Multibeam swath sonar survey data function: (CI_OnLineFunctionCode) download role: sourceExtent: (EX_Extent) temporalElement: (EX_TemporalExtent) extent: TimeInstant: timePosition: 2006-01-01 source: (LI_Source) description: Source Contribution: 500 meter gridded bathymetry data set ; Source Type: online sourceCitation: (CI_Citation) title: JODC Bathymetry date: (CI_Date) date: 1999-01-01 dateType: (CI_DateTypeCode) publication citedResponsibleParty: (CI_ResponsibleParty) organisationName: Japan Oceanographic Data Center (JODC) role: (CI_RoleCode) originator citedResponsibleParty: (CI_ResponsibleParty) positionName: Citation URL contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: http://www.jodc.go.jp/data_set/jodc/jegg_intro.html name: J-EGG500(JODC-Expert Grid data for Geographic -500m) description: 500 meter gridded bathymetry data set function: (CI_OnLineFunctionCode) download role: sourceExtent: (EX_Extent) temporalElement: (EX_TemporalExtent) extent: TimeInstant: timePosition: 1999-01-01 source: (LI_Source) description: Source Contribution: Caspian Sea bathymetric isolines downloaded from web site. ; Source Type: online sourceCitation: (CI_Citation) title: CEP Isolines of the Bathymetry of the Caspian Sea date: (CI_Date) date: 1999-01-01 dateType: (CI_DateTypeCode) publication citedResponsibleParty: (CI_ResponsibleParty) organisationName: Caspian Environment Programme (CEP) role: (CI_RoleCode) originator citedResponsibleParty: (CI_ResponsibleParty) positionName: Citation URL contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: http://caspian.iwlearn.org/ name: Isolines of the Bathymetry of the Caspian Sea description: Isolines of the bathymetry is used for showing the depths of the Caspian Sea function: (CI_OnLineFunctionCode) download role: sourceExtent: (EX_Extent) temporalElement: (EX_TemporalExtent) extent: TimePeriod: beginPosition: 1987-01-01 endPosition: 1999-01-01 source: (LI_Source) description: Source Contribution: Bathymetric grid of the Mediterranean sea derived from multibeam swath sonar bathymetric surveys downloaded from web site ; Source Type: online sourceCitation: (CI_Citation) title: CIESM Morpho-bathymetry of the Mediterranean Sea date: (CI_Date) date: 2005-01-01 dateType: (CI_DateTypeCode) publication citedResponsibleParty: (CI_ResponsibleParty) organisationName: Mediterranean Science Commission (CIESM) role: (CI_RoleCode) originator citedResponsibleParty: (CI_ResponsibleParty) positionName: Citation URL contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: http://www.ciesm.org/ name: Morpho-bathymetry of the Mediterranean Sea description: Grid derived from multibeam swath sonar bathymetric surveys function: (CI_OnLineFunctionCode) download role: sourceExtent: (EX_Extent) temporalElement: (EX_TemporalExtent) extent: TimeInstant: timePosition: 2005-01-01 source: (LI_Source) description: Source Contribution: Grid derived from known soundings and sea-surface altimetry measurements downloaded from web site ; Source Type: online sourceCitation: (CI_Citation) title: Measured and Estimated Seafloor Topography date: (CI_Date) date: 2008-01-01 dateType: (CI_DateTypeCode) publication citedResponsibleParty: (CI_ResponsibleParty) organisationName: Scripps Institute of Oceanography (SIO) role: (CI_RoleCode) originator citedResponsibleParty: (CI_ResponsibleParty) positionName: Citation URL contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: http://topex.ucsd.edu/marine_topo/ name: Measured and Estimated Seafloor Topography description: Grid derived from known soundings and sea-surface altimetry measurements function: (CI_OnLineFunctionCode) download role: sourceExtent: (EX_Extent) temporalElement: (EX_TemporalExtent) extent: TimePeriod: beginPosition: 1997-01-01 endPosition: 2008-01-01 source: (LI_Source) description: Source Contribution: High resolution spherical grid topography of the Baltic Sea downloaded from web site ; Source Type: online sourceCitation: (CI_Citation) title: A high resolution spherical grid topography of the Baltic Sea 2nd edition date: (CI_Date) date: 2001-01-01 dateType: (CI_DateTypeCode) publication citedResponsibleParty: (CI_ResponsibleParty) organisationName: Leibniz Institute for Baltic Sea Research (LIBSR) role: (CI_RoleCode) originator citedResponsibleParty: (CI_ResponsibleParty) positionName: Citation URL contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: http://www.io-warnemuende.de/topography-of-the-baltic-sea.html name: A high resolution spherical grid topography of the Baltic Sea 2nd edition description: High resolution spherical grid topography of the Baltic Sea function: (CI_OnLineFunctionCode) download role: sourceExtent: (EX_Extent) temporalElement: (EX_TemporalExtent) extent: TimeInstant: timePosition: 2001-01-01 source: (LI_Source) description: Source Contribution: Digital data base that contains all available bathymetric data north of 64 degrees North downloaded from web site ; Source Type: online sourceCitation: (CI_Citation) title: International Bathymetry Chart of the Arctic Ocean (IBCAO) date: (CI_Date) date: 2008-01-01 dateType: (CI_DateTypeCode) publication citedResponsibleParty: (CI_ResponsibleParty) organisationName: International Bathymetric Chart of the Arctic Ocean (IBCAO) version 2.0 role: (CI_RoleCode) originator citedResponsibleParty: (CI_ResponsibleParty) positionName: Citation URL contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: http://www.ngdc.noaa.gov/mgg/bathymetry/arctic/arctic.html name: IBCAO description: Digital data base that contains all available bathymetric data north of 64 degrees North function: (CI_OnLineFunctionCode) download role: sourceExtent: (EX_Extent) temporalElement: (EX_TemporalExtent) extent: TimePeriod: beginPosition: 1999-01-01 endPosition: 2008-01-01 source: (LI_Source) description: Source Contribution: U.S Coastal Relief Model downloaded from web site ; Source Type: online sourceCitation: (CI_Citation) title: NGDC U.S Coastal Relief Model date: (CI_Date) date: 2005-01-01 dateType: (CI_DateTypeCode) publication citedResponsibleParty: (CI_ResponsibleParty) organisationName: DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NEDIS, NOAA, U.S. Department of Commerce role: (CI_RoleCode) originator citedResponsibleParty: (CI_ResponsibleParty) positionName: Citation URL contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: http://www.ngdc.noaa.gov/mgg/coastal/crm.html name: U.S Coastal Relief Model description: Integrated coastal bathymetric and topographic relief model function: (CI_OnLineFunctionCode) download role: sourceExtent: (EX_Extent) temporalElement: (EX_TemporalExtent) extent: TimePeriod: beginPosition: 1999-01-01 endPosition: 2005-01-01 source: (LI_Source) description: Source Contribution: U.S Great Lakes Bathymetry downloaded from web site ; Source Type: online sourceCitation: (CI_Citation) title: NGDC U.S Great Lakes Bathymetry date: (CI_Date) date: 2005-01-01 dateType: (CI_DateTypeCode) publication citedResponsibleParty: (CI_ResponsibleParty) organisationName: DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NEDIS, NOAA, U.S. Department of Commerce role: (CI_RoleCode) originator citedResponsibleParty: (CI_ResponsibleParty) positionName: Citation URL contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: http://www.ngdc.noaa.gov/mgg/greatlakes/greatlakes.html name: U.S Great Lakes Bathymetry description: Grid of U.S Great Lakes bathymetry function: (CI_OnLineFunctionCode) download role: sourceExtent: (EX_Extent) temporalElement: (EX_TemporalExtent) extent: TimePeriod: beginPosition: 1996-01-01 endPosition: 2005-01-01 source: (LI_Source) description: Source Contribution: gridded topographic data downloaded from web site. ; Source Type: online sourceCitation: (CI_Citation) title: Shuttle Radar Topography Mission (SRTM) date: (CI_Date) date: 2008-01-01 dateType: (CI_DateTypeCode) publication citedResponsibleParty: (CI_ResponsibleParty) organisationName: NASA > National Aeronautics and Space Administration (NASA) role: (CI_RoleCode) originator citedResponsibleParty: (CI_ResponsibleParty) positionName: Citation URL contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: http://srtm.usgs.gov/ name: Shuttle Radar Topography Mission description: global topography function: (CI_OnLineFunctionCode) download role: sourceExtent: (EX_Extent) temporalElement: (EX_TemporalExtent) extent: TimeInstant: timePosition: 2000-01-01 source: (LI_Source) description: Source Contribution: gridded topographic data downloaded from web site ; Source Type: online sourceCitation: (CI_Citation) title: Global Land One-km Base Elevation (GLOBE) date: (CI_Date) date: 1999-01-01 dateType: (CI_DateTypeCode) publication citedResponsibleParty: (CI_ResponsibleParty) organisationName: DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NEDIS, NOAA, U.S. Department of Commerce role: (CI_RoleCode) originator citedResponsibleParty: (CI_ResponsibleParty) positionName: Citation URL contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: http://www.ngdc.noaa.gov/mgg/topo/globe.html name: Global Land One-km Base Elevation (GLOBE) description: A 30-arc-second (1-km) gridded, quality-controlled global Digital Elevation Model (DEM) function: (CI_OnLineFunctionCode) download role: sourceExtent: (EX_Extent) temporalElement: (EX_TemporalExtent) extent: TimePeriod: beginPosition: 1940-01-01 endPosition: 1999-01-01 source: (LI_Source) description: Source Contribution: NSIDC 400 m elevation grid of Antarctica ice surface downloaded from web site ; Source Type: online sourceCitation: (CI_Citation) title: NSIDC Antarctica Radarsat Antarctic Mapping Project (RAMP) Topography date: (CI_Date) date: 2001-01-01 dateType: (CI_DateTypeCode) publication citedResponsibleParty: (CI_ResponsibleParty) organisationName: National Snow and Ice Data Center (NSIDC) role: (CI_RoleCode) originator citedResponsibleParty: (CI_ResponsibleParty) positionName: Citation URL contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: http://nsidc.org/data/nsidc-0082.html name: RAMP DEM Version 2 description: 400 m grid of Antarctica ice surface function: (CI_OnLineFunctionCode) download role: sourceExtent: (EX_Extent) temporalElement: (EX_TemporalExtent) extent: TimePeriod: beginPosition: 1940-01-01 endPosition: 2001-01-01 source: (LI_Source) description: Source Contribution: NSIDC 5 km elevation grid of Greenland bedrock downloaded from web site ; Source Type: online sourceCitation: (CI_Citation) title: NSIDC Greenland Bedrock date: (CI_Date) date: 2001-01-01 dateType: (CI_DateTypeCode) publication citedResponsibleParty: (CI_ResponsibleParty) organisationName: National Snow and Ice Data Center (NSIDC) role: (CI_RoleCode) originator citedResponsibleParty: (CI_ResponsibleParty) positionName: Citation URL contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: http://nsidc.org/data/nsidc-0092.html name: Greenland 5 km DEM, Ice Thickness, and Bedrock Elevation Grids description: 5 km elevation grid of Greenland bedrock function: (CI_OnLineFunctionCode) download role: sourceExtent: (EX_Extent) temporalElement: (EX_TemporalExtent) extent: TimePeriod: beginPosition: 1970-01-01 endPosition: 2001-01-01 source: (LI_Source) description: Source Contribution: Antarctica bedrock elevation grid downloaded from web site ; Source Type: online sourceCitation: (CI_Citation) title: EISMINT and SCAR Antarctica BEDMAP date: (CI_Date) date: 2000-01-01 dateType: (CI_DateTypeCode) publication citedResponsibleParty: (CI_ResponsibleParty) organisationName: European Ice Sheet Modeling Initiative (EISMINT) and Scientific Committee on Antarctic Research (SCAR) role: (CI_RoleCode) originator citedResponsibleParty: (CI_ResponsibleParty) positionName: Citation URL contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: http://www.antarctica.ac.uk//bas_research/data/access/bedmap/ name: A new ice thickness and subglacial topographic model of the Antarctic description: Antarctica bedrock elevation grid function: (CI_OnLineFunctionCode) download role: sourceExtent: (EX_Extent) temporalElement: (EX_TemporalExtent) extent: TimePeriod: beginPosition: 1996-01-01 endPosition: 2000-01-01 return to top metadataMaintenance: (MD_MaintenanceInformation) maintenanceAndUpdateFrequency: (MD_MaintenanceFrequencyCode) annually dateOfNextUpdate: 2014-06-01 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 2012-08-07 version of the FGDC RSE to ISO 19115-2 transform for DEMs. maintenanceNote: Translated from FGDC 2012-08-08T17:16:45.609-06:00 maintenanceNote: Last Metadata Review Date: 2013-05-31 contact: (CI_ResponsibleParty) individualName: Kelly Carignan organisationName: DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce contactInfo: (CI_Contact) address: (CI_Address) electronicMailAddress: kelly.carignan@noaa.gov role: (CI_RoleCode) pointOfContact |