|2004 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Portland, Oregon
||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 CSC
using an unsupervised algorithm. No warranty is made as to the accuracy of the classification.
Futher details are available in the Process Steps below.