Characterization of optical turbulence (Cn2) data measured at the ARL A_LOT facility

Report No. ARL-MR-625
Authors: Arnold Tunick, Nikolay Tikhonov, Mikhail Vorontsov, and Gary Carhart
Date/Pages: September 2005; 31 pages
Abstract: The Army Research Laboratory (ARL), Atmospheric Laser Optics Testbed (A_LOT) is a unique experimental facility with which to measure optical turbulence (Cn2) intensity and investigate its effects on infrared imaging and laser optics communications. Within the A_LOT, an atmospheric boundary layer scintillometer records Cn2 data over a near horizontal, 2.3 km path. The optical path extends from the top of a tall water tower to the Intelligent Optics Laboratory (IOL) rooftop at ARL. The mid-point elevation of the optical path is approximately 40 m above ground level. In this paper, we present an overview of selected optical turbulence and meteorology data collected at the A_LOT facility and identify several viable research areas that focus on optical turbulence (Cn2) measurement, modeling, and analysis.
Distribution: Approved for public release
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Last Update / Reviewed: September 1, 2005