2018-2019 NOAA NGS Topobathy Lidar DEM Hurricane Irma Delivery 1: Miami to Key Largo, FL

Description

The NOAA Hurricane Irma Florida Keys Topobathymetric LiDAR Delivery 1 area data were collected by Quantum Spatial, Inc. (QSI) using three Riegl systems: a Riegl VA880G+, a Riegl VQ880GII, and a Riegl VQ880GH. Delivery 1 acquisition dates spanned from 20181120-20190323 in 23 missions. The final classified LiDAR data were transformed from ellipsoid elevations to Geoid12b elevations and used to create topobathymetric DEMs in ERDAS Imagine (*.img) format with a 1m pixel resolution. Ground (2), bathymetric bottom (40), and submerged objects (43) classified points were used in DEM creation. The Delivery 1 digital elevation model (DEM) dataset consists of a bathymetric void clipped bare earth model and an interpolated bare earth model. The 100 meter buffered project area consists of approximately 1,381,270 acres and stretches from the eastern coast of Miami south and westward to the Marquesas Keys. The NOAA Hurricane Irma Florida Keys Topobathymetric LiDAR Delivery 1 area covers 285,529 acres of the full project boundary. DEM files were compiled in 5000 m x 5000 m tiles and clipped to the project boundary. This Delivery 1 dataset is comprised of 70 5000 m x 5000 m DEM tiles. 1 - unclassified 2 - ground 7 - noise 40 - bathymetric bottom or submerged topography 41 - water surface 43 - submerged feature 45 - water column 46 - overlap bathy bottom - temporally different from a separate lift 71 - unclassified associated with areas of overlap bathy bottom/temporal bathymetric differences 72 - ground associated with areas of overlap bathy bottom/temporal bathymetric differences 81 - water surface associated with areas of overlap bathy bottom/temporal bathymetric differences 85 - water column associated with areas of overlap bathy bottom/temporal bathymetric differences 1 Overlap - edge clip Please note that classifications 46,71,72,81, and 85 associated with temporal bathymetric differences have only undergone automated classification and have not been manually reviewed. This data set also includes LiDAR intensity values, number of returns, return number, time, and scan angle. The 100 meter buffered project area consists of approximately 1,381,270 acres and stretches from the eastern coast of Miami south and westward to the Marquesas Keys. The NOAA Hurricane Irma Florida Keys Topobathymetric LiDAR Delivery 1 area covers 285,529 acres of the full project boundary. LAS files were compiled in 500 m x 500 m tiles. This Delivery 1 dataset is comprised of 5,065 - 500 m x 500 m LAS tiles.

Resources

Name Format Description Link
0 Create custom data files by choosing data area, product type, map projection, file format, datum, etc. A new metadata will be produced to reflect your request using this record as a base. Change to an orthometric vertical datum is one of the many options. https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=9060
0 The Data Access Viewer (DAV) allows a user to search for and download elevation, imagery, and land cover data for the coastal U.S. and its territories. The data, hosted by the NOAA Office for Coastal Management, can be customized and requested for free download through a checkout interface. An email provides a link to the customized data, while the original data set is available through a link within the viewer. 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/59493
0 Website listed for National Geodetic Survey https://geodesy.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/ngs/dmp/pdf/59493.pdf
0 Bulk download of data files in geotiff format, geographic coordinates, orthometric heights. Note that the vertical datum (hence elevations) of the files here are different than described in this document. They will be in an orthometric datum. https://coast.noaa.gov/htdata/raster2/elevation/NGS_FL_Topobathy_Irma_Delivery1_2019_9060/

Tags

  • digital elevation model
  • vertical location
  • topography
  • national geodetic survey
  • united states of america
  • land surface
  • terrain elevation
  • national ocean service
  • laser
  • doc/noaa/nos/ngs
  • aircraft
  • bathymetry
  • oceans
  • florida keys
  • united states
  • continent
  • u.s. coastline
  • noaa
  • bathymetry/topography
  • dem
  • north america
  • coastal elevation
  • u.s. department of commerce
  • erosion
  • earth science
  • bathymetry/seafloor topography
  • ngs lidar
  • coastal bathymetry
  • light detection and ranging
  • sea floor
  • florida
  • lidar
  • coastal processes
  • beach

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