2 meter resolution ESRI rasters were created from the ground classified lidar points. They were based on the original tiling system and were exported to be 3 tiles by 3 tiles in size. Not all tiles were full tiles, so not all of these DEMs will be the full 15,000m by 15,000m.
These were created to provide the partners with an additional format for the LiDAR data that requires less storage.
ground condition
Unknown
301 Centennial Mall South
301 Centennial Mall South
For the LAS, horizontal accuracy is verified in three tests. During boresighting, adjoining flightlines are view in profile and hard edged features are observed and if necessary the flightlines are adjusted for good relative horizontal and vertical fit. The second test for horizontal accuracy is by comparing raw contours from each flightline against adjoining flightlines at specific points. The final test is the vertical LIDAR control report.
Horizontal accuracy of the LAS will meet or exceed 0.6m RMSE (Accuracyr = 1.04m at the 95% confidence level).
Survey control points were used to validate the accuracy of the LIDAR surface model after automatic and hand filtering. This surface exceeds the NSSDA vertical accuracy specifications of .185 meters RMSE.
Vertical elevation for LAS will meet or exceed 0.185m RMSE (Accuracyz = 0.36m at the 95% confidence level)
ESRI grids made from the ground classified lidar points
ESRI grids made from the ground classified lidar points