2019 NOAA NGS Topobathy Lidar: Chesapeake Bay, MD

Description

NOAA Chesapeake Bay MD1902 and MD1903 Topobathymetric lidar data were collected by NV5 Geospatial (NV5) using a Leica Chiroptera 4x system. The MD1903 acquisition spanned from 20191109-20191115 in 5 missions. The MD1902 acquisition spanned from 20191109-20191116 in 6 missions. The datasets include topobathymetric data in LAS format 1.4, point data record format 6, with the following classifications in accordance with project specifications and the American Society for Photogrammetry and Remote Sensing (ASPRS) classification standards: 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 1 Withheld- green sensor returns within topographic areas 42 Synthetic - synthetic water surface These data sets also includes lidar intensity values, number of returns, return number, time, and scan angle. The 100 m buffered NOAA Chesapeake Bay MD1902 project area covers approximately 260.195 square kilometers in an area encompassing Severn River to Rhode River near Annapolis, Maryland. LAS files were compiled in 500 m x 500 m tiles. The MD1902 dataset is comprised of 1,460 - 500 m x 500 m LAS tiles. The 100 m buffered NOAA Chesapeake Bay MD1903 project area covers approximately 260.195 square kilometers in an area encompassing West River to Dares Beach near Annapolis, Maryland. LAS files were compiled in 500 m x 500 m tiles. The MD1903 dataset is comprised of 1,569 - 500 m x 500 m LAS tiles.

Resources

Name Format Description Link
0 View the complete metadata record on InPort for more information about this dataset. https://www.fisheries.noaa.gov/inport/item/65553
0 Website listed for National Geodetic Survey https://geodesy.noaa.gov/
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/65553.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 Bulk download of data files in LAZ 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://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/9424/
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=9424
33 Topobathymetric Lidar Data Report https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/9424/supplemental/NOAA_CB_1902_1903_Topobathymetric_Lidar_Report.pdf
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/

Tags

  • topography
  • national geodetic survey
  • united states of america
  • land surface
  • terrain elevation
  • national ocean service
  • doc/noaa/nos/ngs
  • bathymetry
  • oceans
  • continent
  • noaa
  • beaches
  • north america
  • airplane
  • coastal elevation
  • u.s. department of commerce
  • earth science
  • bathymetry/seafloor topography
  • ngs lidar
  • coastal bathymetry
  • maryland
  • lidar
  • coastal processes
  • spectral/engineering
  • digital elevation/terrain model (dem)

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