| 2007 FEMA New Jersey Flood Mitigation Lidar: Gloucester County |
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LIDAR data is remotely sensed high-resolution elevation data collected by an airborne
collection platform. By positioning laser range finding with the use of 1 second GPS
with 100hz inertial measurement unit corrections, Terrapoint's LIDAR instruments are
able to make highly detailed geospatial elevation products of the ground, man-made
structures and vegetation. These data were collected from March 29 - April 6, 2007
for Gloucester County, New Jersey. The project area covers 353 square miles. The LiDAR
flightlines for this project were planned for a 50% acquisition overlap. The nominal
resolution of this project without overlap is 1.25 m. Four returns were recorded for
each pulse in addition to an intensity value. GPS Week Time, Intensity, Flightline
and number attributes were provided for each LiDAR point. Data is provided as random
points, in LAS v1.1 format, classified according to the following ASPRS Class Codes:
Class 1 - Non-ground Class 2 - Ground Class 7 - Noise Class 9 - Water
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