The Texas Natural Resources Information System (TNRIS) is pleased to announce the release of approximately 9167 square miles of newly acquired high resolution lidar data for portions of the Texas coastal region. This project was managed by the Texas Strategic Mapping (StratMap) Program and utilized the StratMap Contracts held by the Department of Information Resources (DIR). Collection took place during the leaf-off season in Texas.
The StratMap contributing partners for this project were the Texas Water Development Board(TWDB), the Houston-Galveston Area Council of Governments(H-GAC), and the United States Geological Survey(USGS) 3-D Elevation Program. Lidar acquired from this project will be used for floodplain management and planning, feature extraction, water quality modeling, stream restoration potential analysis, change detection, 9-1-1, wildfire mitigation, habitat identification/modeling for endangered species, and hurricane recovery projects. Data acquisition and processing was performed by Fugro USA Land with third-party QA/QC being performed by AECOM. The project area of interest covers areas where previous lidar data were acquired a decade ago.
Further details regarding this acquisition can be found by downloading the StratMap 2018 Upper Texas Coast Project Reports.
Lidar data and the associated geospatial products for this project are available for the cost of reproduction through the TNRIS Research and Distribution Center (RDC) and the Data Download
View coverage areas in the interactive map below:
Please see our Lidar status map for statewide lidar coverage.
Vertical NVA RMSEz tested 4.910 cm. The tested accuracy in all areas meets the project specification for an NVA RMSEz of 10 cm.
Average first-return point density is 4.37 points per square meter (ppsm) meeting the 4 ppsm project specification.
Point data is classified according to the following American Society for Photogrammetry and Remote Sensing (ASPRS) class schema:
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