|2007 Northwest Florida Water Management District (NWFWMD) Lidar: Portions of Bay,
Calhoun, Jackson and Washington Counties
|LIDAR data is remotely sensed high-resolution elevation data collected by an airborne
collection platform. Using a combination of laser range finding, GPS positioning and
inertial measurement technologies; LIDAR instruments are able to make highly detailed
Digital Elevation Models (DEMs) of the earth’s terrain, man-made structures and vegetation.
Using a LH Systems ALS50 Light Detection And Ranging (LiDAR) system, 262 flight lines
of high density (submeter ground sample distance) data were collected over areas in
Bay, Calhoun, Jackson and Washington Counties in Florida. This data set was collected
at the same time as the collection for Jefferson County, FL. Collectively, these data
sets cover approximately 1201 square miles. The data acquisition occurred in 17 missions
between February 22, 2007 and March 13, 2007. Multiple returns were recorded for each
laser pulse along with an intensity value for each return. This data was collected
at sub-meter resolution to provide average point spacing of 0.7 m for collected points.
Up to 5 returns were recorded for each pulse in addition to an intensity value.