|Date(s):||Coverage Availability/Geographic Extent:||Footprint:||Source(s):|
|DeWitt||1/64 USGS Quadrangle||FEMA|
Use our online data search & download to specify the geographic area for which you would like to download this data set.
FEMA 2016 DeWitt County Lidar is in the public domain and available from the Research and Distribution Center for the cost of reproduction.
|Alternative Data:||1M Hydro-flattened DEM, 3D Breaklines|
|Derivative Data:||5ft Contours|
|Recommended Uses:||Basemap, Research, Analysis|
Compass PTS JV was tasked by FEMA to plan, acquire, process, and produce derivative products of LiDAR data at a nominal pulse spacing (NPS) of 0.7 meters based on the “U.S. Geological Survey National Geospatial Program LiDAR Base Specification Version 1.2”. The project consists of approximately 604.3 square miles. Fugro acquired 55 flight lines in 3 lifts between March 2nd and March 4th, 2016. LiDAR data collection was performed with a twin engine aircraft, utilizing a Riegl, LMS-Q680i sensor. The horizontal datum for the data is NAD83 State Plane South Central (4204) feet and the vertical datum is NAVD88.
Lidar data for Texas is made available online through the use of data compression using LASTools. LASTools is an open-source collection of tools for lidar data viewing and manipulation. TNRIS uses the LASzip portion of LASTools for compression\decompression. LASTools provides a lossless compression of the data from las to laz formats.