Determining Evaporative Duct and Boundary Layer Refractivity Profile in Optical and RADAR/Radio Wavebands Afloat Navy SBIR FY2013.2 Sol No.: Navy SBIR FY2013.2 Topic No.: N132-141 Topic Title: Determining Evaporative Duct and Boundary Layer Refractivity Profile in Optical and RADAR/Radio Wavebands Afloat Proposal No.: N132-141-0150 Firm: Dakota Ridge R & D 130 mohawk drive boulder, Colorado 80303-3648 Contact: Fredrick Solheim Phone: (303) 818-7600 Abstract: Oceanic refractivity gradients induce operational and security concerns of naval operations. Continuous passive characterization of refractive effects upon visble, IR, and radio/RADAR electromagnetic propagation through passive relatively inexpensive multiband IR camera observations is enabled with the apparatus and methods proposed herein. Benefits: This technology will eliminate active methods currently in use by the Navy, including radiosondes and radar clutter, and will be superior to modeling methods currently in use. The apparatus and method developed herein are, with some further development, applicable to passive atmospheric temperature profiling and windfinding. Return