Lidar - Light Detection and Ranging, is a remote sensing technique that utilizes light in the form of a rapidly pulsed laser to measure return distances from the Earth captured by a sensor at the source of the pulse. These combined pulse return measurements with additional spatial and temproral data recorded by the acquisition system(airborne or terrestial) produce a three-dimensional(3-D), detailed representation of the shape of the Earth illuminating its surface characteristics.
Lidar goes beyond traditional bare earth digital elevation models (DEMs) by producing point cloud information that can be classified into existing features such as vegetation and man-made structures.
Historically, TNRIS acquired data through the now defunct High Priority Imagery and Data Sets (HPIDS) contract.
Lidar coverage varies across the state. Lidar coverage and project details (date, nps, vendor, etc.) can be found on the LiDAR Status Map. All details about each dataset in our collection can be found in the supplemental reports for each project.
All Lidar datasets are available at reproduction cost through our Research and Distribution center. They can be obtained by filling out an order form.
This Lidar project is intended to provide high density elevation information of 13 coastal counties of Texas.
Lidar for Harris County, Texas and surrounding areas.
Lidar data for Lee, Leon, Madison & Milam county.
Lidar data for Cooke, Grayson, Montague & Wise Counties
Lidar data for Shelby, Sabine and Newton County
Lidar Data for Blanco, Caldwell, Gonzales, Kendall, & Kerr
Lidar data for Collin, Denton and Kaufman County
Lidar data for Henderson, Smith, Van Zandt, Trinity River.
Lidar data for Palo Pinto Mountains State Park for Texas Parks and Wildlife (TPWD)
Texas Parks and Wildlife (TPWD) Galveston Island State Park Aerial Acquisition and Mapping Project
Lidar for approximately 2388 square miles consisting of the Texas counties of Kleberg and Kennedy.