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 In 2015, the North Central Texas Council of Governments facilitated the cooperative purchase of 0.5-Meter LiDAR (4PPM) for 2,404 square miles of the NCTCOG region.
The contractor for this project was Woolpert. LiDAR data were collected during two timeframes, January-March 2015 (leaf-off) for the Metroplex portion of the flight and Summer 2015 for the outer county areas (assessing lake levels) and are available for purchase via DFWMaps Marketplace according to the following price schedule.
The LiDAR data are sold in 3,000' x 2,000' tiles, or 0.215 square miles. Sample files and a shapefile of the tile structure may be downloaded below.
LiDAR Sample - LAS Format
SDCP Index Grid
Specifications
| Camera |
Leica ALS70-HP LiDAR System |
| Nominal Pulse Spacing |
0.5 Meter, 4 points per meter |
| Accuracy |
9.25 cm vertical accuracy |
| Relative Accuracy |
<=6 RMSEz within individual swaths and <=8 cm within swath overlap |
| Measurement Rate |
500 kHz |
| Returns |
up to 5 |
| Capture |
January-March 2015 for inner metroplex acquisition, Summer 2015 for outer county lake-level acquisition |
| Ground Conditions |
Leaf off; free from snow, haze, fog, or dust; streams within normal banks |
| Coordinate System |
Texas State Plane, North Central Zone |
| Horizontal Datum |
NAD 83 |
| Vertical Datum |
NAVD88 |
| Units |
US Survey Feet |
| Breaklines |
Hydrologic flattening |
| Format |
LAS 1.2, classified text file, bare earth DEM, first return DSM |
| Classification |
Data are classified according to ASPRS classification standards with 80% of buildings identified |
More information on the 2015 project can be found in the project level metadata.
For questions regarding the 2015 LiDAR project, send us an email.
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