Metadata Identifier: gov.noaa.ngdc.mgg.dem:11502

Aggregation Info | Bands | Citations | Constraints | Coverage Descriptions | Dimensions | Extents | Formats | Geographic Bounding Box
Georectified Information | Georeferenceable Information | Identifiers | Instruments | Mediums | OnlineResources | Operations
Platforms | Process Steps | Range Elements | Reference Systems | Responsible Parties | Series | Sources | Spatial Grids | Temporal Extents

MD_DataIdentification

Count Component Title Abstract
1 Easter Island, Chile 3 arc-second Digital Elevation Model NOAA's National Centers for Environmental Information is building high-resolution digital elevation models (DEMs) for select U.S. coastal regions. These integrated bathymetric-topographic DEMs are used to support tsunami forecasting and warning efforts at the NOAA Center for Tsunami Research, Pacific Marine Environmental Laboratory (PMEL). The DEMs are part of the tsunami forecast system SIFT (Short-term Inundation Forecasting for Tsunamis) currently being developed by PMEL for the NOAA Tsunami Warning Centers, and are used in the MOST (Method of Splitting Tsunami) model developed by PMEL to simulate tsunami generation, propagation, and inundation.
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SV_Identification

Count Component Title Type
1 DEM Global Mosaic ArcGIS Image Service Digital Elevation Model Global Mosaic ArcGIS Image Service ArcGIS Image Service
1 Footprints ArcGIS Map Service NCEI Digital Elevation Model Extents ArcGIS Feature Layer ArcGIS Feature Service
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CI_Citation

Count Component Title Date Citation Identifier
1 Digital Elevation Model Global Mosaic ArcGIS Image Service
    2016-06-14
1 Digital Elevation Model of Easter Island, Chile: Procedures, Data Sources, and Analysis
    2017-01-06
1 Easter Island, Chile 3 arc-second Digital Elevation Model
    2017-01-06
1 GCMD Data Center Keywords Global Change Master Directory (GCMD) Data Center Keywords
    2020-01-09
1 Global Change Master Directory (GCMD) Horizontal Data Resolution Keywords
    1 Global Change Master Directory (GCMD) Location Keywords
      1 Global Change Master Directory (GCMD) Platform Keywords
        1 GCMD Project Keywords Global Change Master Directory (GCMD) Project Keywords
          2020-01-09
        1 Global Change Master Directory (GCMD) Science and Services Keywords
          2 NASA/Global Change Master Directory (GCMD) Earth Science Services Keywords Global Change Master Directory (GCMD) Service Keywords
            2020-01-09
          1 Global Change Master Directory (GCMD) Vertical Data Resolution Keywords
            1 Instantaneous Water Level depth
              2012-08-10
            1 Multibeam Bathymetry Database (MBBDB)
              2004-01-01
            1 NCEI Digital Elevation Model Extents ArcGIS Feature Layer
              2022-10-24
            1 NGDC Marine Trackline Geophysics Database
              1977-01-01
            1 Shuttle Radar Topography Mission 1 Arc-Second Global
              2014-09-23
            1 Singlebeam sonar data from SeaDataNet
              2011-10-01
            1 The GEBCO_2014 Grid, version 20150318
              2015-03-18
            1 Tsunami Inundation DEM Project
              2008-10-31
            2 Uncontrolled
              1 World Geodetic System 1984
                2007-08-27
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              CI_Series

              Count Component Name Issue Identification Page
              1 NOAA Coastal Inundation DEMs Named by primary coastal city, state in DEM.
              1 NOAA Tsunami Inundation DEMs Easter Island, Chile Digital Elevation Model
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              CI_ResponsibleParty

              Count Component Individual Organization Position Email Role Linkage
              2 resourceProvider https://epsg.org/crs_4326/WGS-84.html
              7 https://www.ncei.noaa.gov/maps/bathymetry/
              1 British Oceanographic Data Centre (BODC) originator
              9 DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, Department of Commerce publisher https://www.ncei.noaa.gov/products/coastal-elevation-models
              4 GCMD Landing Page Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) custodian https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
              2 EPSG Registry European Petroleum Survey Group publisher https://epsg.org/home.html
              2 Kelly Carignan Kelly Carignan NOAA National Centers for Environmental Information kelly.carignan@noaa.gov pointOfContact
              1 NASA > National Aeronautics and Space Administration originator
              2 NCEI GIS Team NCEI GIS Team NOAA National Centers for Environmental Information ncei.gis@noaa.gov pointOfContact
              6 DEM Info NOAA National Centers for Environmental Information DEM Information dem.info@noaa.gov pointOfContact
              2 NCEI (publisher) NOAA National Centers for Environmental Information publisher
              1 No Title NOAA National Centers for Environmental Information originator
              1 NCEI (custodian) NOAA National Centers for Environmental Information custodian
              1 Anna Milan NOAA National Centers for Environmental Information Metadata Specialist editor
              1 publisher - NOAA/PMEL/Center for Tsunami Research (NCTR) NOAA PMEL Center for Tsunami Research (NCTR) NOAA Center for Tsunami Research collaborator
              1 SeaDataNet sdn-userdesk@seadatanet.org pointOfContact
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              CI_OnlineResource

              Count Component Linkage Name Description Function
              1 http://earthexplorer.usgs.gov/ Shuttle Radar Topography Mission The Shuttle Radar Topography Mission (SRTM) was a partnership between NASA and the National Geospatial-Intelligence Agency (NGA). Flown aboard the NASA Space Shuttle Endeavour (11-22 February 2000), SRTM fulfilled its mission to map the world in three dimensions. The USGS is under agreement with NGA and NASA's Jet Propulsion Laboratory to distribute SRTM elevation products derived from the C-band radar data. SRTM utilized interferometric C-band Spaceborne Imaging Radar to generate elevation data over 80 percent of the Earth's land surface. Global SRTM data at a resolution of 1 arc-second have been edited to delineate and flatten water bodies, better define coastlines, remove spikes and wells, and fill small voids. Larger areas of missing data or voids were filled by the NGA using interpolation algorithms in conjunction with other sources of elevation data. The SRTM 1 Arc-Second Global data offer worldwide coverage of void filled data at a resolution of 1 arc-second (30 meters) and provide open distribution of this high-resolution global data set. download
              1 http://www.epsg-registry.org/ 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
              1 http://www.epsg-registry.org/export.htm?gml=urn:ogc:def:datum:EPSG::5831 Instantaneous Water Level depth Link to Geographic Markup Language (GML) description of reference system. information
              1 http://www.gebco.net/ General Bathymetric Chart of the Oceans (GEBCO) The General Bathymetric Chart of the Oceans (GEBCO) consists of an international group of experts who work on the development of a range of bathymetric data sets and data products, including gridded bathymetric data sets, the GEBCO Digital Atlas, the GEBCO world map and the GEBCO Gazetteer of Undersea Feature Names. download
              1 http://www.ngdc.noaa.gov/mgg/geodas/trackline.html Marine Geophysical Trackline Data Marine Geophysical Trackline Data download
              1 http://www.ngdc.noaa.gov/mgg Multibeam Bathymetry Database (MBBDB) Multibeam Swath Sonar Survey Data download
              1 https://epsg.org/crs_4326/WGS-84.html WGS 84 GML of World Geodetic System 1984 coordinate reference system. information
              1 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
              4 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
              1 https://gis.ngdc.noaa.gov/arcgis/rest/services/DEM_mosaics/DEM_global_mosaic/ImageServer DEM Global Mosaic (Elevation Values) ArcGIS Image Service REST endpoint for DEM Global Mosaic (Elevation Values) ArcGIS Image Service search
              1 https://gis.ngdc.noaa.gov/arcgis/rest/services/DEM_mosaics/DEM_global_mosaic_hillshade/ImageServer 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
              1 https://gis.ngdc.noaa.gov/arcgis/services/DEM_mosaics/DEM_global_mosaic_hillshade/ImageServer/WMSServer?request=GetCapabilities&service=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
              1 https://noaa.maps.arcgis.com/home/item.html?id=0afa88a1701749dbbf76fcadca4f77f3 NOAA GeoPlatform Entry for NCEI Digital Elevation Model (DEM) Extents NOAA GeoPlatform listing for NCEI Digital Elevation Model (DEM) Extents information
              2 https://noaa.maps.arcgis.com/home/item.html?id=c876e3c96a8642ab8557646a3b4fa0ff NOAA GeoPlatform Entry for DEM Global Mosaic (Elevation Values) NOAA GeoPlatform listing for DEM Global Mosaic (Elevation Values) information
              2 https://noaa.maps.arcgis.com/home/item.html?id=e11ebaeb19544bb18c2afe440f063062 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
              2 https://noaa.maps.arcgis.com/home/item.html?id=e9ba2e7afb7d46cd878b34aa3bfce042 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
              1 https://services2.arcgis.com/C8EMgrsFcRFL6LrL/arcgis/rest/services/ncei_dem_extents/FeatureServer NCEI Digital Elevation Model (DEM) Extents ArcGIS Feature Service REST endpoint for NCEI Digital Elevation Model (DEM) Extents ArcGIS Feature Service search
              1 DEM Map Search https://www.ncei.noaa.gov/maps/bathymetry/ Bathymetric Data Viewer The Bathymetric Data Viewer is an interactive map providing discovery, descriptions, and download capability for bathymetric survey data and digital elevation models archived at NOAA's National Centers for Environmental Information (NCEI). search
              2 https://www.ncei.noaa.gov/products/coastal-elevation-models Coastal Elevation Models at NCEI information
              1 DEM Text Search https://www.ngdc.noaa.gov/mgg/coastal DEM text search Text search for locating completed and planned DEMs. search
              1 https://www.ngdc.noaa.gov/mgg/dat/dems/regional_tr/easter_island_3_isl_2016.pdf Digital Elevation Model of Easter Island: Procedures, Data Sources and Analysis Report describing the development of the Easter Island DEM download
              1 https://www.ngdc.noaa.gov/thredds/dodsC/regional/easter_island_3_isl_2016.nc.html OPeNDAP Dataset Access Form OPeNDAP Dataset Access Form download
              1 https://www.ngdc.noaa.gov/thredds/fileServer/regional/easter_island_3_isl_2016.nc Download NetCDF File Download NetCDF File download
              1 https://www.ngdc.noaa.gov/thredds/ncml/regional/easter_island_3_isl_2016.nc?catalog=https%3A%2F%2Fwww.ngdc.noaa.gov%2Fthredds%2Fcatalog%2Fregional%2Fcatalog.html&dataset=regionalDatasetScan%2Feaster_island_3_isl_2016.nc NetCDF Markup Language file NetCDF Markup Language file information
              1 https://www.ngdc.noaa.gov/thredds/ncss/regional/easter_island_3_isl_2016.nc/dataset.html Download a subset of the NetCDF Download a subset of the NetCDF download
              1 https://www.ngdc.noaa.gov/thredds/wcs/regional/easter_island_3_isl_2016.nc?service=WCS&version=1.0.0&request=GetCapabilities Web Coverage Service GetCapabilities Web Coverage Service GetCapabilities information
              1 https://www.ngdc.noaa.gov/thredds/wms/regional/easter_island_3_isl_2016.nc?service=WMS&version=1.3.0&request=GetCapabilities Web Map Service GetCapabilities Web Map Service GetCapabilities information
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              MD_Identifier or RS_Identifier

              Count Component Code
              1 urn:ogc:def:crs:EPSG::4326
              1 urn:ogc:def:datum:EPSG::5831
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              EX_Extent

              Bounding Box Temporal Extent
              Count Component Description West East North South Start End
              1 ISO valid extents for Easter Island 3 sec. DEM -111.20 -107.50 -25.80 -28.50
              2 -180 180 90 -90
              1 1980-01-01 1987-01-01
              1 1983-01-01 2010-01-01
              1 1957-01-01 2001-01-01
              1
              1
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              EX_GeographicBoundingBox

              Count Component West East North South
              1 -111.20 -107.50 -25.80 -28.50
              2 -180 180 90 -90
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              EX_TemporalExtent

              Count Component Start End
              1 1980-01-01 1987-01-01
              1 1983-01-01 2010-01-01
              1 1957-01-01 2001-01-01
              2
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              MD_Format

              Count Component Name Version specification
              1 netCDF 4 Classic netCDF 4 Classic
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              MD_Medium

              none found
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              MD_Constraints

              Count Component Use Limitation
              1 not for navigation 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.
              1 copyright statement Produced by the NOAA National Centers for Environmental Information. Not subject to copyright protection within the United States.
              1 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.
              1 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.
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              MD_ReferenceSystem

              Count Component Code Authority Title
              1 WGS84 urn:ogc:def:crs:EPSG::4326 World Geodetic System 1984
              1 urn:ogc:def:datum:EPSG::5831 Instantaneous Water Level depth
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              MD_GridSpatialRepresentation

              Count Component Number of Dimensions Cell Geometry Code
              1 3 area
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              MD_Georeferenceable or MI_Georeferenceable

              none found
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              MD_Georectified or MI_Georectified

              none found
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              MD_Dimension

              Count Component Name Code Size
              1 row 3241
              1 column 4441
              1 vertical 1
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              MD_CoverageDescription or MI_CoverageDescription

              none found
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              MD_Band or MI_Band

              none found
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              MI_RangeElementDescription

              none found
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              MD_AggregateInformation

              Count Component Title Code Association Type Code
              1 Digital Elevation Model of Easter Island, Chile: Procedures, Data Sources, and Analysis crossReference
              1 Tsunami Inundation DEM Project Tsunami Inundation DEM Project largerWorkCitation
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              LE_Source or LI_Source

              Count Component Title Date Description
              1 Multibeam Bathymetry Database (MBBDB) 2004-01-01 Swath Sonar Survey Data
              1 NGDC Marine Trackline Geophysics Database 1977-01-01 trackline bathymetry
              1 Shuttle Radar Topography Mission 1 Arc-Second Global 2014-09-23 Gridded topographic data
              1 Singlebeam sonar data from SeaDataNet 2011-10-01 singlebeam sonar data
              1 The GEBCO_2014 Grid, version 20150318 2015-03-18 gridded bathymetry
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              LE_ProcessStep or LI_ProcessStep

              Count Component DateTime Description
              1 2015-04-22T00:00:00 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.
              1 2016-10-01T00:00:00 All datasets obtained by NCEI were converted to common horizontal datum of WGS84 geographic using ArcGIS or GDAL. They were also converted to common file format for visualization and inspection.
              1 2016-11-30T00:00:00 Datasets were visually inspected with ArcGIS and Global Mapper for identification and editing of data anomalies. Datasets were then compared with overlapping datasets to ensure data consistency.
              1 2016-12-05T00:00:00 Multibeam surveys were gridded to 3 arc-second spacing using MB-System's 'mbgrid' tool. The resulting Arc ASCII grid was imported into ArcGIS.
              1 2016-12-13T00:00:00 xyz files of the bathymetric data were surfaced using GMT's 'surface' tool onto a 6 arc-second grid that interpolated to fill empty cells. Points extracted every 5 meters along the coastline were also included to ensure that the bathymetric grid reached zero at the coast. The resulting Arc ASCII grid was imported into ArcGIS and clipped to the coastline to remove values over land.
              1 2016-12-28T00:00:00 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 more recent, higher-accuracy datasets. Gridding was performed in quadrants, each with a 5% data buffer. The grids were imported in ArcGIS and seamlessly merged to create the final DEM.
              1 2017-01-06T00:00:00 The DEM was quantitatively evaluated by comparing with source datasets.
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              MI_Operation

              none found
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              MI_Platform

              none found
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              MI_Instrument

              none found
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