2013 NOAA Topographic Lidar DEM: U.S. Virgin Islands (St. Croix, St. John, St. Thomas)

Description

The United States Virgin Islands Topographic LiDAR Task Order involved collecting and delivering topographic elevation point data derived from multiple return light detection and ranging (LiDAR) measurements on the islands of St. Thomas, St. John, St. Croix and numerous smaller islands and islets in the United States Virgin Islands. The data collected for the project area will exhibit Hydro Flattened DEMs (1m resolution) for inclusion into the NED. The purpose of the data is for use in coastal management decision making, including applications such as flood plain mapping and water rights management. LiDAR was collected at an average of 0.7 meter point spacing for all acquired project areas. Overall the DEMs were acceptable, but appear oversampled as a result of low ground point density (heavy vegetation), and is not a contractor issue as a 1 m DEM was specified. Incremental improvements to the DEMs were earned through breakline adjustments. Another characteristic of the USVI lidar data that was observed on all islands is the appearance of divots where there is a single tree or a narrow line of trees that lie in areas of open, bare terrain. The cause appeared to be sub-canopy points that were lower than the surrounding land. In most cases these low points were lower than the true ground surface at those locations, but were classified as ground and retained in the point cloud for use in DEM generation. This issue was not addressed during revisions.

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=8390
21 Simple download of data files. https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/NOAA_USVI_DEM_2013_8390/index.html
0 View the complete metadata record on InPort for more information about this dataset. https://www.fisheries.noaa.gov/inport/item/48382
0 Online Resource https://coast.noaa.gov
0 Online Resource https://coast.noaa.gov/dataviewer
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 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
33 NOAA Data Management Plan for this record on InPort. https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocm/dmp/pdf/48382.pdf
21 Simple download of data files. https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/NOAA_USVI_DEM_2013_8390/index.html
0 View the complete metadata record on InPort for more information about this dataset. https://www.fisheries.noaa.gov/inport/item/48382
0 Online Resource https://coast.noaa.gov
0 Online Resource https://coast.noaa.gov/dataviewer
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 The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords
33 NOAA Data Management Plan for this record on InPort. https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocm/dmp/pdf/48382.pdf
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=8390

Tags

  • topography
  • office of coastal management
  • virgin islands
  • land surface
  • terrain elevation
  • national ocean service
  • dems
  • oceans
  • noaa
  • caribbean sea
  • dem
  • doc/noaa/nos/ocm
  • coastal elevation
  • atlantic ocean
  • u.s. department of commerce
  • earth science
  • ocean
  • topographical relief maps
  • coastal processes
  • north atlantic ocean

Topics

Categories