EAARL-B Submerged Topography - Saint Croix and Saint Thomas, U.S. Virgin Islands, 2014

Description

Binary point-cloud data for part of the submerged environs of Saint Croix and Saint Thomas, U.S. Virgin Islands, were produced from remotely sensed, geographically referenced elevation measurements by the U.S. Geological Survey in collaboration with the National Oceanic and Atmospheric Administration's Coral Reef Conservation Program. Elevation measurements were collected over the area using the second-generation Experimental Advanced Airborne Research Lidar, a pulsed laser ranging system mounted onboard an aircraft to measure ground elevation, vegetation canopy, and coastal topography. The system uses high-frequency laser beams directed at the Earth's surface through an opening in the bottom of the aircraft's fuselage. The laser system records the time difference between emission of the laser beam and the reception of the reflected laser signal in the aircraft. The plane travels over the target area at approximately 55 meters per second at an elevation of approximately 300 meters, resulting in a laser swath of approximately 240 meters with an average point spacing of 0.5-1.6 meters. The nominal vertical elevation accuracy expressed as the root mean square error (RMSE) is 13.5 centimeters on Saint Croix. Data were insufficient to calculate the nominal vertical elevation accuracy expressed as the root mean square error (RMSE) on Saint Thomas. A peak sampling rate of 15-30 kilohertz results in an extremely dense spatial elevation dataset. More than 100 kilometers of coastline can be surveyed easily within a 3- to 4-hour mission. When resultant elevation maps for an area are analyzed, they provide a useful tool to make management decisions regarding land development. Original contact information: Contact Name: Xan Fredericks Contact Org: Cherokee Nation Technology Solutions, U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL Title: Lidar Validation and Processing Analyst Phone: 727 502-8086 Email: afredericks@usgs.gov

Resources

Name Format Description Link
0 Create custom data files by choosing data area, product type, map projection, file format, datum, etc. https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=4940
21 Simple download of data files. https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/4940/index.html
0 NOAA Office for Coastal Management Home Page https://coast.noaa.gov
0 NOAA Office for Coastal Management Home Page https://coast.noaa.gov
0 Custom download tool https://coast.noaa.gov/dataviewer
0 View the complete metadata record on InPort for more information about this dataset. https://www.fisheries.noaa.gov/inport/item/48140
33 NOAA Data Management Plan for this record on InPort. https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocm/dmp/pdf/48140.pdf
0 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 https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords

Tags

  • digital elevation model
  • 2014
  • topography
  • united states of america
  • office of coastal management
  • virgin islands
  • land surface
  • saint croix
  • terrain elevation
  • national ocean service
  • doi/usgs/cmg
  • bathymetry
  • oceans
  • coastal and marine geology
  • noaa
  • caribbean sea
  • lesser antilles
  • dem
  • u. s. virgin islands (17n064w0000)
  • alps
  • cessna 310
  • doc/noaa/nos/ocm
  • coastal elevation
  • atlantic ocean
  • laser altimetry
  • submerged
  • u.s. department of commerce
  • earth science
  • bathymetry/seafloor topography
  • ocean
  • light detection and ranging
  • saint thomas
  • u.s. geological survey
  • lidar
  • ocean basin
  • topographical relief maps
  • coastal processes
  • u.s. virgin islands
  • u. s. virgin islands
  • north atlantic ocean
  • seafloor topography
  • eaarl-b
  • geographic information
  • caribbean
  • experimental advanced airborne research lidar
  • country/territory
  • airborne lidar processing system
  • remote sensing
  • u.s. department of interior

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