The Joint Biological Standoff Detection System (JBSDS) Program has developed a lidar system for detecting
and discriminating biological clouds at a standoff range. The lidar typically scans near the horizon to detect a cloud and
then "stares" at the cloud for a time period to ensure adequate signal-to-noise ratio (SNR) to discriminate if the cloud is
biological. This paper proposes an alternative to the scan-and-stare approach; i.e., to scan only. The analysis results of
lidar data obtained from field tests conducted in 2004 at Dugway Proving Ground (DPG) in Utah suggest that scan-only
operations without staring would improve SNR for detection and discrimination and provide operational advantages.
In theory, depth profiles of received power from ocean remote sensing airborne lidar data with a wide filed of view can be related to the diffuse attenuation coefficient, Kd. Preliminary results from clear open ocean waters in the Sargasso Sea and in the North Pacific Ocean indicate that a wavelength dependent discrepancy may exist, and that the 532 nm lidar Kd values are approximately 33 percent lower values than those derived from sunlight. If the discrepancies can be resolved, then a lidar system could provide a way to remotely measure the spatial variability of Kd over synoptic scales that can not be achieved within a reasonable time interval from a surface vessel.
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