2022 NOAA NGS Topobathy Lidar DEM of Tutuila, American Samoa

Description

This data was collected by Woolpert using a Leica HawkEye 4X sensor. The data was acquired from 20221018 - 20221212. The data includes topobathy data in LAS 1.4 format classified as unclassified (1), ground (2), low noise (7), topo water surface (9), high noise (18), bathymetric point (40), bathymetric water surface (41), synthetic derived water surface (42), submerged object (43), International Hydrographic Organization (IHO) S-57 object (44), submerged aquatic vegetation (64), and bathymetric bottom temporal changes (65) in accordance with the project specifications. The lidar data in ellipsoid heights was used to create the final topobathymetric DEMs in ellipsoid heights. Lidar data classes 2, 40 and 43 were used to generate a raster in geotiff format, with 1 meter pixel resolution for the entire area. The raster was then clipped to the tile grid and named according to project specifications to result in tiled 5000m x 5000m topobathymetric DEMs. The project consists of approximately 516 square kilometers of data collected in Tutuila, American Samoa. This dataset contains 29 5000 m x 5000 m raster tiles.

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=10093
21 Simple download of data files. https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/NGS_Tutuila_AS_Topobathy_2022_10093/index.html
0 View the complete metadata record on InPort for more information about this dataset. https://www.fisheries.noaa.gov/inport/item/72145
33 Topobathymetric Lidar Data Report https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12b/10092/supplemental/AS2201_AmericanSamoa_QualityAssuranceReport.pdf
0 Online Resource https://coast.noaa.gov/dataviewer
0 NOAA Office for Coastal Management Home Page https://coast.noaa.gov
33 NOAA Data Management Plan for this record on InPort. https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ngs/dmp/pdf/72145.pdf
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
0 Website listed for National Geodetic Survey https://geodesy.noaa.gov/

Tags

  • topography
  • national geodetic survey
  • land surface
  • terrain elevation
  • national ocean service
  • doc/noaa/nos/ngs
  • oceans
  • american samoa
  • noaa
  • coastal elevation
  • u.s. department of commerce
  • earth science
  • bathymetry/seafloor topography
  • ngs lidar
  • ocean
  • central pacific ocean
  • topographical relief maps
  • coastal processes
  • pacific ocean
  • seafloor topography

Topics

Categories