City of Grand Prairie 2009 70cm

Date(s): Coverage Availability/Geographic Extent: Footprint: Source(s):
2009 City of Grand Prairie City of Grand Prairie FlightGrid City of Grand Prairie

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City of Grand Prairie 2009 70cm is in the public domain and available from the Research and Distribution Center for the cost of reproduction.


Data Details

Category:
Lidar
Available Formats: LAS
Alternative Data: None
Derivative Data: None
Known Issues: None
Recommended Uses: Basemap, Research, Analysis
Spatial Reference:

EPSG 2276

Description

This Lidar project is intended to provide high accuracy, classified multiple return Lidar, for approximately 139 square miles, of the City of Grand Prairie, Texas. The Lidar data was acquired and processed by Terrapoint USA to support hydrologic modeling and other engineering tasks. The product is a high density mass point dataset with an average point spacing of 0.7m. The data is tiled without a buffer, stored in LAS 1.0 format.

The elevation data was verified internally prior to delivery to ensure it met fundamental accuracy requirements when compared kinematic to Terrapoint GPS checkpoints. The Lidar dataset for the City of Grand Prairie was tested 0.22ft vertical accuracy based on consolidated RMSE.

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.

  • Software with native LAZ support
  • ERDAS IMAGINE (14.1 and up) by Hexagon Geospatial
  • Global Mapper (13.1 and up) by Blue Marble Geo
  • ENVI LiDAR (5.1 and up) by Exelis VIS
  • FME (2012 and up) by Safe Software
  • LAStools by rapidlasso
  • plas.io 3D Web Viewer by Hobu Inc.
  • FUSION (3.40 and up) by Bob McGaughey of the USDA
  • Voyager (1.3 and up) by Voyager GIS
  • GRASS GIS (7.0 and up) by Open Source Geospatial Foundation (OSGeo)

Supplemental Information

Tile Index: Download File
Project Report(s): Download File