gov.noaa.ngdc.mgg.dem:316 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact 2020-05-21-06:00 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) 3 row 10801 0.01666666667 column 21601 0.01666666667 vertical 1 area true World Geodetic System 1984 WGS 84 2007-08-27 revision https://epsg.org/crs_4326/WGS-84.html WGS 84 GML of World Geodetic System 1984 coordinate reference system. information resourceProvider European Petroleum Survey Group https://epsg.org/home.html European Petroleum Survey Group Geodetic Parameter Registry Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations. search publisher urn:ogc:def:crs:EPSG::4326 Mean Sea Level depth MSL depth 2012-08-10 revision https://epsg.org/crs_5715/MSL-depth.html MSL depth GML for Vertical CRS in EPGS Registry. information resourceProvider European Petroleum Survey Group https://epsg.org/home.html European Petroleum Survey Group Geodetic Parameter Registry Registry that accesses the EPSG Geodetic Parameter Dataset, which is a structured dataset of Coordinate Reference Systems and Coordinate Transformations. search publisher urn:ogc:def:crs:EPSG::5715 ETOPO1 1 Arc-Minute Global Relief Model 2009-01-01 publication First NOAA National Centers for Environmental Information NCEI Metadata ID: gov.noaa.ngdc.mgg.dem:316 NOAA National Centers for Environmental Information publisher NOAA National Geophysical Data Center author 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. Developed to support global research, exploration, and education completed historicalArchive NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact NOAA National Centers for Environmental Information DEM Information dem.info@noaa.gov pointOfContact asNeeded https://gis.ngdc.noaa.gov/arcgis/rest/directories/arcgisoutput/DEM_mosaics/DEM_global_mosaic_hillshade_ImageServer/_ags_2eaf34a5_07b9_4945_9a72_88eac3d460d2.png Thumbnail of DEM PNG Earth Science > Oceans > Bathymetry/Seafloor Topography > Water Depth Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry Earth Science > Oceans > Bathymetry/Seafloor Topography > Continental Margins Earth Science > Oceans > Bathymetry/Seafloor Topography > Water Depth Earth Science > Oceans > Coastal Processes > Coastal Elevation theme Global Change Master Directory (GCMD) Science Keywords 2024 revision 19 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Models/Analyses > DEM > Digital Elevation Model platform Global Change Master Directory (GCMD) Platform Keywords 2020-01-09 publication 9.1 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Infoterra > Subject disciplines > Geophysics > Geophysics Infoterra > Subject disciplines > Geomorphology > Geomorphology theme Infoterra Keyword Thesaurus ICSU-WDS > International Council for Science - World Data System NOAA OneStop Project project Global Change Master Directory (GCMD) Project Keywords 2020-01-09 publication 9.1 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Global relief Gridded elevations Integrated bathymetry and topography theme Uncontrolled Geographic Region > Global Land Geographic Region > Global Ocean place Global Change Master Directory (GCMD) Location Keywords 2024 revision 19 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2020-01-09 publication 9.1 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian otherRestrictions 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. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose. 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. Produced by the NOAA National Centers for Environmental Information. Not subject to copyright protection within the United States. otherRestrictions Cite as: NOAA National Geophysical Data Center. 2009: ETOPO1 1 Arc-Minute Global Relief Model. NOAA National Centers for Environmental Information. Accessed [date]. Also cite the NOAA Technical Memorandum: Amante, C. and B.W. Eakins, 2009. ETOPO1 1 Arc-Minute Global Relief Model: Procedures, Data Sources and Analysis. NOAA Technical Memorandum NESDIS NGDC-24. National Geophysical Data Center, NOAA. doi:10.7289/V5C8276M [access date]. ETOPO1 1 Arc-Minute Global Relief Model 2009-01-01 publication NOAA National Geophysical Data Center Boulder CO publisher Christopher J. Amante originator Barry W. Eakins NOAA National Centers for Environmental Information Research Scientist 303-497-6505 325 Broadway, E/GC3 Boulder Colorado 80305-3328 USA Barry.Eakins@noaa.gov 9am-5pm, M-F, Mountain Time Contact Marine Geology and Geophysics Division pointOfContact https://www.ngdc.noaa.gov/mgg/global/relief/ETOPO1/docs/ETOPO1.pdf ETOPO1 1 Arc-Minute Global Relief Model: Procedures, Data Sources and Analysis Report describing the development of the ETOPO1 1 Arc-Minute Global Relief Model download 19 pages crossReference userGuide grid eng; USA oceans geoscientificInformation elevation Native Dataset Environment: Microsoft Windows 2000 Version 5.2 (Build 3790) Service Pack 2; ESRI ArcCatalog 9.2 -180.00 180.00 -90.00 90.00 1940-01-01 2008-01-01 Digital Elevation Model Global Mosaic ArcGIS Image Service 2016-06-14 creation DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce https://www.ncei.noaa.gov/products/coastal-elevation-models HTTPS Coastal Elevation Models at NCEI information publisher DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce https://noaa.maps.arcgis.com/home/item.html?id=c876e3c96a8642ab8557646a3b4fa0ff HTTPS NOAA GeoPlatform Entry for DEM Global Mosaic (Elevation Values) NOAA GeoPlatform listing for DEM Global Mosaic (Elevation Values) information publisher DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce https://noaa.maps.arcgis.com/home/item.html?id=e11ebaeb19544bb18c2afe440f063062 HTTPS NOAA GeoPlatform Entry for DEM Global Mosaic (Color Shaded Relief) Shaded relief visualization of a global seamless bathymetry/topography mosaic of digital elevation models at NOAA/NCEI. information publisher DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce https://noaa.maps.arcgis.com/home/item.html?id=e9ba2e7afb7d46cd878b34aa3bfce042 ESRI:ArcGIS Digital Elevation Models Mosaic (Individual DEMs) An image service providing access to bathymetric/topographic digital elevation models stewarded at NOAA's National Centers for Environmental Information. Either individual DEMs or small subsets can be accessed through this service. search publisher The DEM Global Mosaic is an image service providing a global, seamless bathymetry/topography mosaic that includes NCEI's ETOPO 2022, NCEI's Continuously Updated DEM (CUDEM), and other NCEI-stewarded DEMs, along with regional grids such as IBCAO, IBCSO and the Hawaiian Island Multibeam Synthesis (University of Hawaii). This service provides elevation/depth values in meters; for a visualization of the data, please see the related DEM Global Mosaic (Color Shaded Relief) service. There are 5 related image services providing access to Digital Elevation Models: DEM Mosaic (Individual DEMs), DEM Global Mosaic (Elevation Values), DEM Global Mosaic (Color Shaded Relief), CUDEM Mosaic (Elevation Values), and CUDEM Mosaic (Color Shaded Relief). NCEI builds and distributes high-resolution, coastal digital elevation models (DEMs) that integrate ocean bathymetry and land topography to support NOAA's mission to understand and predict changes in Earth's environment, and conserve and manage coastal and marine resources to meet our Nation's economic, social, and environmental needs. They can be used for modeling of coastal processes (tsunami inundation, storm surge, sea-level rise, contaminant dispersal, etc.), ecosystems management and habitat research, coastal and marine spatial planning, and hazard mitigation and community preparedness. This service is a general-purpose global, seamless bathymetry/topography mosaic. It combines DEMs from a variety of near sea-level vertical datums, such as mean high water (MHW), mean sea level (MSL), and North American Vertical Datum of 1988 (NAVD88). No conversion/harmonization of vertical datums was performed. Because the mosaic contains 'overviews' for performance, individual DEMs cannot be separated from the others. Individual DEMs, or smaller subsets, are available in the companion DEM Mosaic (Individual DEMs) image service. By default, the DEMs are drawn in order of cell size, with higher-resolution grids displayed on top of lower-resolution grids. If overlapping DEMs have the same resolution, the newer one is shown. Please see NCEI's corresponding DEM Footprints feature service for polygon footprints and more information about the individual DEMs used to create this composite view. NCEI GIS Team NOAA National Centers for Environmental Information ncei.gis@noaa.gov pointOfContact DATA ANALYSIS AND VISUALIZATION > GEOGRAPHIC INFORMATION SYSTEMS > WEB-BASED GEOGRAPHIC INFORMATION SYSTEMS DATA MANAGEMENT/DATA HANDLING > DATA SEARCH AND RETRIEVAL DATA ANALYSIS AND VISUALIZATION > VISUALIZATION/IMAGE PROCESSING theme Global Change Master Directory (GCMD) Service Keywords 2020-01-09 publication 9.1 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian 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. ArcGIS Image Service 10.8.1 1 -180 180 -90 90 tight ArcGIS Server REST endpoint for image service (Elevation Values) https://gis.ngdc.noaa.gov/arcgis/rest/services/DEM_mosaics/DEM_global_mosaic/ImageServer ESRI:ArcGIS ESRI Image Service REST specification DEM Global Mosaic (Elevation Values) ArcGIS Image Service REST endpoint for DEM Global Mosaic (Elevation Values) ArcGIS Image Service search ArcGIS for Server REST endpoint for image service (Color Shaded Relief) https://gis.ngdc.noaa.gov/arcgis/rest/services/DEM_mosaics/DEM_global_mosaic_hillshade/ImageServer ESRI:ArcGIS ESRI Image Rest Specification DEM Global Mosaic (Color Shaded Relief) ArcGIS Image Service This service provides a color shaded relief visualization of the data. The elevations/depths are displayed using this color ramp: https://gis.ngdc.noaa.gov/viewers/images/dem_color_scale.png. search WMS Get Capabilities https://gis.ngdc.noaa.gov/arcgis/services/DEM_mosaics/DEM_global_mosaic_hillshade/ImageServer/WMSServer?request=GetCapabilities&service=WMS OGC:WMS http://opengis.net/spec/wms DEM Global Mosaic (Color Shaded Relief) WMS Capabilities document for Open Geospatial Consortium Web Map Service for DEM Global Mosaic (Color Shaded Relief) search NCEI Digital Elevation Model Extents ArcGIS Feature Layer 2022-10-24 creation DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce https://www.ncei.noaa.gov/products/coastal-elevation-models HTTPS Coastal Elevation Models at NCEI information publisher DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce https://noaa.maps.arcgis.com/home/item.html?id=0afa88a1701749dbbf76fcadca4f77f3 HTTPS NOAA GeoPlatform Entry for NCEI Digital Elevation Model (DEM) Extents NOAA GeoPlatform listing for NCEI Digital Elevation Model (DEM) Extents information publisher DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce https://noaa.maps.arcgis.com/home/item.html?id=c876e3c96a8642ab8557646a3b4fa0ff HTTPS NOAA GeoPlatform Entry for DEM Global Mosaic (Elevation Values) NOAA GeoPlatform listing for DEM Global Mosaic (Elevation Values) information publisher DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce https://noaa.maps.arcgis.com/home/item.html?id=e11ebaeb19544bb18c2afe440f063062 HTTPS NOAA GeoPlatform Entry for DEM Global Mosaic (Color Shaded Relief) Shaded relief visualization of a global seamless bathymetry/topography mosaic of digital elevation models at NOAA/NCEI. information publisher DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce https://noaa.maps.arcgis.com/home/item.html?id=e9ba2e7afb7d46cd878b34aa3bfce042 ESRI:ArcGIS Digital Elevation Models Mosaic (Individual DEMs) An image service providing access to bathymetric/topographic digital elevation models stewarded at NOAA's National Centers for Environmental Information. Either individual DEMs or small subsets can be accessed through this service. search publisher 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). NCEI GIS Team NOAA National Centers for Environmental Information ncei.gis@noaa.gov pointOfContact DATA ANALYSIS AND VISUALIZATION > GEOGRAPHIC INFORMATION SYSTEMS > WEB-BASED GEOGRAPHIC INFORMATION SYSTEMS DATA MANAGEMENT/DATA HANDLING > DATA SEARCH AND RETRIEVAL DATA ANALYSIS AND VISUALIZATION > VISUALIZATION/IMAGE PROCESSING theme Global Change Master Directory (GCMD) Service Keywords 2020-01-09 publication 9.1 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian These data not to be used for navigation. Although these data are of high quality and useful for planning and modeling purposes, they are not suitable for navigation. For official navigation products, please refer to the U.S. nautical charts available from the NOAA Office of Coast Survey: https://www.nauticalcharts.noaa.gov. ArcGIS Feature Service 11.0 1 -180 180 -90 90 tight ArcGIS Server REST endpoint for feature service https://services2.arcgis.com/C8EMgrsFcRFL6LrL/arcgis/rest/services/ncei_dem_extents/FeatureServer HTTPS ESRI Feature Service REST Specification NCEI Digital Elevation Model (DEM) Extents ArcGIS Feature Service REST endpoint for NCEI Digital Elevation Model (DEM) Extents ArcGIS Feature Service search NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information distributor In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Contact NCEI for other distribution options and instructions. netCDF 4.3.1 GZIP GRD98 GZIP binary GZIP xyz GZIP georeferenced tiff GZIP pdf png jpeg kmz https://www.ncei.noaa.gov/metadata/geoportal/rest/metadata/item/gov.noaa.ngdc.mgg.dem:316/html HTTPS Metadata Landing Page information https://www.ngdc.noaa.gov/mgg/global/relief/ETOPO1/data/ ETOPO1 1 Arc-Minute Global Relief Model ETOPO1 1 Arc-Minute Global Relief Model in netCDF format download https://www.ngdc.noaa.gov/mgg/global/global.html ETOPO1 1 Arc-Minute Global Relief Model Download page for accessing global relief model, metadata record and development report. information http://maps.ngdc.noaa.gov/viewers/wcs-client/ http Grid Extract grid extract tool search https://www.ngdc.noaa.gov/mgg/global/relief/ETOPO1/posters/ http Earth's Relief from ETOPO1 1 Arc-Minute Global Relief Model poster image of ETOPO1 1 Arc-Minute Global Relief Model in pdf format search https://www.ngdc.noaa.gov/mgg/global/relief/ETOPO1/posters/ http Earth's Relief from ETOPO1 poster image of ETOPO1 in png format search https://www.ngdc.noaa.gov/mgg/global/relief/ETOPO1/posters/ http Earth's Relief from ETOPO1 small image of ETOPO1 in jpeg format search https://www.ngdc.noaa.gov/mgg/global/relief/ETOPO1/tiled/ice_surface/etopo1_ice_surface.kmz http ETOPO1 Ice Surface image of ETOPO1 Ice Surface in kmz format search repository NOAA National Centers for Environmental Information NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015. 2015-04-22T00:00:00 dataset Horizontal Positional Accuracy Report The horizontal accuracy of bathymetric and topographic features in the 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. Vertical Positional Accuracy Report The vertical accuracy of bathymetric and topographic features in the 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. NGDC made every effort to obtain all available digital topographic and bathymetric datasets for use in building the global relief model. 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. 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. 2008-06-17T00:00:00 Barry W. Eakins NOAA National Centers for Environmental Information Research Scientist 303-497-6505 325 Broadway, E/GC3 Boulder Colorado 80305-3328 USA Barry.Eakins@noaa.gov 9am-5pm, M-F, Mountain Time Contact Marine Geology and Geophysics Division pointOfContact Datasets were visually inspected with ArcGIS for identification and editing of data anomalies. Datasets were then compared with overlapping datasets to ensure data consistency. 2008-06-25T00:00:00 Coastline datasets were adjusted to fit satellite imagery. 2008-06-30T00:00:00 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. 2008-07-10T00:00:00 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. 2008-07-18T00:00:00 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. 2008-07-31T00:00:00 Source Contribution: global shoreline data downloaded from web site ; Source Type: online NGDC Global Self-consistent, Hierarchical, High-resolution Shoreline Database (GSHHS) 2003-01-01 publication DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NEDIS, NOAA, U.S. Department of Commerce originator https://www.ngdc.noaa.gov/mgg/shorelines/gshhs.html GSHHS - A Global Self-consistent, Hierarchical, High-resolution Shoreline Database global shoreline data download 1996-01-01 2003-01-01 Source Contribution: Antarctica coastline data downloaded from web site ; Source Type: online ADD Antarctica Coastline 2006-01-01 publication Antarctica Digital Database (ADD) originator http://www.add.scar.org Antarctica Coastline Antarctica coastline data download 1993-01-01 2006-01-01 Source Contribution: Multibeam bathymetry data downloaded from web site ; Source Type: online NGDC Gulf of California Bathymetry 2006-01-01 publication DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NEDIS, NOAA, U.S. Department of Commerce originator https://www.ngdc.noaa.gov/mgg/bathymetry/multibeam.html NGDC Multibeam Bathymetry Database Multibeam swath sonar survey data download 2006-01-01 Source Contribution: 500 meter gridded bathymetry data set ; Source Type: online JODC Bathymetry 1999-01-01 publication Japan Oceanographic Data Center (JODC) originator http://www.jodc.go.jp/data_set/jodc/jegg_intro.html J-EGG500(JODC-Expert Grid data for Geographic -500m) 500 meter gridded bathymetry data set download 1999-01-01 Source Contribution: Caspian Sea bathymetric isolines downloaded from web site. ; Source Type: online CEP Isolines of the Bathymetry of the Caspian Sea 1999-01-01 publication Caspian Environment Programme (CEP) originator http://archive.iwlearn.net/www.caspianenvironment.org/www.caspianenvironment.org/dim/menu5.htm?doc=default.htm Isolines of the Bathymetry of the Caspian Sea Isolines of the bathymetry is used for showing the depths of the Caspian Sea download 1987-01-01 1999-01-01 Source Contribution: Bathymetric grid of the Mediterranean sea derived from multibeam swath sonar bathymetric surveys downloaded from web site ; Source Type: online CIESM Morpho-bathymetry of the Mediterranean Sea 2005-01-01 publication Mediterranean Science Commission (CIESM) originator http://www.ciesm.org/marine/morphomap.htm Morpho-bathymetry of the Mediterranean Sea Grid derived from multibeam swath sonar bathymetric surveys download 2005-01-01 Source Contribution: Grid derived from known soundings and sea-surface altimetry measurements downloaded from web site ; Source Type: online Measured and Estimated Seafloor Topography 2008-01-01 publication Scripps Institute of Oceanography (SIO) originator http://topex.ucsd.edu/marine_topo/ Measured and Estimated Seafloor Topography Grid derived from known soundings and sea-surface altimetry measurements download 1997-01-01 2008-01-01 Source Contribution: High resolution spherical grid topography of the Baltic Sea downloaded from web site ; Source Type: online A high resolution spherical grid topography of the Baltic Sea 2nd edition 2001-01-01 publication Leibniz Institute for Baltic Sea Research (LIBSR) originator http://www.io-warnemuende.de/topography-of-the-baltic-sea.html A high resolution spherical grid topography of the Baltic Sea 2nd edition High resolution spherical grid topography of the Baltic Sea download 2001-01-01 Source Contribution: Digital data base that contains all available bathymetric data north of 64 degrees North downloaded from web site ; Source Type: online International Bathymetry Chart of the Arctic Ocean (IBCAO) 2008-01-01 publication International Bathymetric Chart of the Arctic Ocean (IBCAO) version 2.0 originator https://www.ngdc.noaa.gov/mgg/bathymetry/arctic/arctic.html IBCAO Digital data base that contains all available bathymetric data north of 64 degrees North download 1999-01-01 2008-01-01 Source Contribution: U.S Coastal Relief Model downloaded from web site ; Source Type: online NGDC U.S Coastal Relief Model 2005-01-01 publication DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NEDIS, NOAA, U.S. Department of Commerce originator https://www.ngdc.noaa.gov/mgg/coastal/crm.html U.S Coastal Relief Model Integrated coastal bathymetric and topographic relief model download 1999-01-01 2005-01-01 Source Contribution: U.S Great Lakes Bathymetry downloaded from web site ; Source Type: online NGDC U.S Great Lakes Bathymetry 2005-01-01 publication DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NEDIS, NOAA, U.S. Department of Commerce originator https://www.ngdc.noaa.gov/mgg/greatlakes/greatlakes.html U.S Great Lakes Bathymetry Grid of U.S Great Lakes bathymetry download 1996-01-01 2005-01-01 Source Contribution: gridded topographic data downloaded from web site. ; Source Type: online Shuttle Radar Topography Mission (SRTM) 2008-01-01 publication NASA > National Aeronautics and Space Administration (NASA) originator https://lta.cr.usgs.gov/SRTM1Arc Shuttle Radar Topography Mission global topography download 2000-01-01 Source Contribution: gridded topographic data downloaded from web site ; Source Type: online Global Land One-km Base Elevation (GLOBE) 1999-01-01 publication DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NEDIS, NOAA, U.S. Department of Commerce originator https://www.ngdc.noaa.gov/mgg/topo/globe.html Global Land One-km Base Elevation (GLOBE) A 30-arc-second (1-km) gridded, quality-controlled global Digital Elevation Model (DEM) download 1940-01-01 1999-01-01 Source Contribution: NSIDC 400 m elevation grid of Antarctica ice surface downloaded from web site ; Source Type: online NSIDC Antarctica Radarsat Antarctic Mapping Project (RAMP) Topography 2001-01-01 publication National Snow and Ice Data Center (NSIDC) originator http://nsidc.org/data/nsidc-0082.html RAMP DEM Version 2 400 m grid of Antarctica ice surface download 1940-01-01 2001-01-01 Source Contribution: NSIDC 5 km elevation grid of Greenland bedrock downloaded from web site ; Source Type: online NSIDC Greenland Bedrock 2001-01-01 publication National Snow and Ice Data Center (NSIDC) originator http://nsidc.org/data/nsidc-0092.html Greenland 5 km DEM, Ice Thickness, and Bedrock Elevation Grids 5 km elevation grid of Greenland bedrock download 1970-01-01 2001-01-01 series Data Stewardship Data Stewardship Maturity Assessment MM-Stew The Data Stewardship Maturity Matrix (DSMM) is a unified framework that defines criteria for each of nine components based on measurable practices, which can be used to apply a progressive, 6-level rating to an individual dataset, representing stewardship maturity stages rated as Not Assessed or Not Available (Level 0), adHoc (Level 1), minimum (Level 2), intermediate (Level 3), advanced (Level 4), and optimal (Level 5). Data Stewardship Maturity Assessment was evaluated by the metadata content editor for the NOAA OneStop project using the Scientific Data Stewardship Maturity Assessment Model Template v4.0. The Scientific Data Stewardship Maturity Assessment Model Template 2015-06-23 publication NCDC-CICS-SMM_0001_Rev.1 v4.0 06/23/2015 doi:10.10.6084/m9.figshare.1211954 Peng, Ge CICS-NC/NCEI author https://doi.org/10.6084/m9.figshare.1211954 HTTPS Web Browser The Scientific Data Stewardship Maturity Assessment Model Template Landing page for quality evaluation procedure. information documentDigital 2016-06-21T00:00:00 optimal advanced intermediate advanced intermediate intermediate minimal minimal intermediate ETOPO1_Global_DEM 2016-06-21 publication v01r00 DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce publisher Data Stewardship Maturity Assessment was evaluated by the metadata content editor for the NOAA OneStop project using the Scientific Data Stewardship Maturity Assessment Model Template v4.0. asNeeded Modified for compliance to NCEI Template v1.2.