The all returns ASCII files contain the X,Y,Z values of all the LiDAR returns collected during the survey mission. In addition each return also has a time stamp, return number, ellipsoidal height and scan angle. The elevation
values are in feet. TerraPoint surveyed and created this data for the Puget Sound LiDAR Consortium under contract. This data set covers 120 square miles.
The LAS files were derived from all returns ASCII files contain the X,Y,Z values of all the LiDAR returns collected during the survey mission. The standard GPS time, scan angle, and return numbers of each point
were preserved in the conversion from ASCII to LAS. The LAS files were classified by the NOAA OCM using an unsupervised algorithm. No warranty is made as to the accuracy of the classification.
Futher details are available in the Process Steps below.
This data set is an LAZ (compressed LAS) format file containing LIDAR point cloud data.