| 2003 Puget Sound LiDAR Consortium (PSLC) Topographic LiDAR: Snohomish County, Washington |
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TerraPoint surveyed and created this data for the Puget Sound LiDAR Consortium under
contract. The area surveyed is approximately 167 square miles and covers a northwest
portion of Snohomish County, WA. All data was collected during ideal conditions (leaf-off).
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 GPS time, classification,
scan angle, intensity and return numbers of each point were preserved in the conversion
from ASCII to LAS. The LAS files are classified into the following ASPRS classes:
(1) Unclassified (2) Bare Earth. Ground and water points are included in Class 2 (Bare
Earth). Futher details are available in the Process Steps below. The NOAA Coastal
Services Center noticed that some intensity values are 0, so be aware before using
the intensity information. This dataset was flown in 2003 with a 50% overlap between
flight lines. Due to the overlap the nominal point spacing of the dataset is 1.0 meter.
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