Elevation – Lidar

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 temporal data recorded by the acquisition system (airborne or terrestrial) produce a three-dimensional (3-D), detailed representation of the shape of the Earth illuminating its surface characteristics.

TNRIS acquires lidar data through partnerships with other federal and state agencies through the StratMap Contract, which operates through the Texas Department of Information Resources (TxDIR).

Lidar Specifications

Download Lidar Specifications

Download Lidar

Launch DataHub icon Launch DataHub

Bulk Copies

Bulk copies of all lidar datasets are available at reproduction cost through our Research and Distribution center. Copies onto hard drives can be requested through the DataHub.

TNRIS Lidar Coverage

Lidar coverage varies across the state. Lidar coverage and project details (date, nominal point spacing, 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.

You can download an index of best available lidar data at TNRIS. This index represents the best available data and not complete coverage of all collections, especially where new collections overlap older collections.

StratMap Lidar by the Numbers

past agency partners and counting...
project Statement of Work (SOW) releases since 2009 and counting...
$14.1 Million
total spent on Lidar data products for the State of Texas since 2009 through cost-share initiatives.

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.

Lidar Point Cloud of College Station Texas lidar 3-d render of buildings in College Station
Left: Sample of 3-D point cloud of Area in College Station, TX | Right: 3-D rendering of Lidar with Aerial Imagery Overlay