Marquesas Islands, French Polynesia 3 arc-second Coastal 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.
Cite this dataset when used as a source.
  • ID not available.
gov.noaa.ngdc.mgg.dem:11523
Download Data
Distribution Formats
  • netCDF (Version: 4 Classic)
Distributor DEM Information
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
dem.info@noaa.gov
Dataset Point of Contact DEM Information
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
dem.info@noaa.gov
Coverage Description ISO valid extents for Marquesas 3 sec. DEM
Time Period
Spatial Reference System urn:ogc:def:datum:EPSG::5831
Spatial Bounding Box Coordinates
N: -7.15
S: -11.40
E: -136.90
W: -142.30
Spatial Coverage Map
General Documentation
Associated Resources
Publication Dates
  • publication: 2016-12-06
Edition First
Data Presentation Form mapDigital
Dataset Progress Status Complete - production of the data has been completed
Data Update Frequency As needed
Purpose Developed for the Pacific Marine Environmental Laboratory (PMEL), NOAA Center for Tsunami Research program in support of NOAA's tsunami forecasting and warning efforts.
Use Limitations
  • 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 Geophysical Data Center. Not subject to copyright protection within the United States.
Originators
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Collaborators
  • Dataset contact information not available
Publishers
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Theme keywords NASA/GCMD Earth Science Keywords
  • Earth Science > Oceans > Bathymetry/Seafloor Topography > Seafloor Topography
  • Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry
  • Earth Science > Oceans > Bathymetry/Seafloor Topography > Water Depth
  • Earth Science > Land Surface > Topography > Terrain Elevation > Topographical Relief Maps
  • Earth Science > Land Surface > Topography > Topographical Relief Maps
  • Earth Science > Oceans > Coastal Processes > Coastal Elevation
NASA/GCMD Platform Keywords
  • DEM > Digital Elevation Model
NASA/GCMD Data Resolution Keywords
  • H: 1 meter - < 30 meters
  • V: 1 meter - < 10 meters
Uncontrolled
  • Coastal Relief
  • Gridded elevations
  • Integrated bathymetry and topography
Global Change Master Directory (GCMD) Service Keywords
  • 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
Place keywords NASA/GCMD Location Keywords
  • Continent > North America > France > French Polynesia > Marquesas Islands
  • Vertical Location > Land Surface
  • Vertical Location > Sea Floor
Uncontrolled
  • France
  • French Polynesia
  • Marquesas Islands
  • Pacific Ocean
  • Nuku Hiva
  • Hiva Oa
Keywords
    Keywords
      Use Constraints No constraint information available
      Fees Fee information not available.
      Lineage information for: repository
      Processing Steps
      • 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.
      Lineage information for: dataset
      Processing Steps
      • 2016-10-16T00:00:00 - All datasets obtained by NCEI were converted to common horizontal and vertical datums of WGS 84 geographic and Lower Mean Sea Level (LMSL), respectively, using constant vertical offsets obtained from tide gague data. They were also converted to common file format for visualization and inspection.
      • 2016-10-28T00:00:00 - Datasets were visually inspected with ArcGIS for identification and editing of data anomalies. Datasets were then compared with overlapping datasets to ensure data consistency.
      • 2016-11-17T00:00:00 - xyz files of the bathymetric data were surfaced using GMT's 'surface' tool onto a 3 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.
      • 2016-11-23T00:00:00 - 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.
      • 2016-11-24T00:00:00 - The DEM was quantitatively evaluated by comparing with source datasets.
      Processing Environment Native Dataset Environment: Linux 4.8.10-300.fc25.x86_64 GNU/Linux
      Source Datasets
      • NCEI Multibeam Bathymetry Database
        • NCEI Multibeam Bathymetry Database (download)
          Multibeam Swath Sonar Survey Data
        • Description of Source: Source Contribution: Swath Sonar Survey Data
        • Temporal extent used: 1996-01-01 to 2014-01-01
      • General Bathymetric Chart of the Oceans (GEBCO) Bathymetric Grid
        • General Bathymetric Chart of the Oceans (GEBCO) (download)
          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, a world map and Gazetteer of Undersea Feature Names.
        • Description of Source: Source Contribution: Composite Bathymetric Grid
      • SRTM
        • USGS (download)
          Earth Resources Observation and Science (EROS) Center
        • Description of Source: Source Contribution: NASA SRTM
      Last Modified: 2017-11-13
      For questions about the information on this page, please email: dem.info@noaa.gov