Michael D Fromm¹, George P Kablick¹, David A Peterson², Colin J Seftor³, Ralph A Kahn⁴, Verity J. B. Flower⁵ and Rene Servranckx⁶, (1)US Naval Research Laboratory, Washington, DC, United States, (2)Naval Research Laboratory, Monterey, CA, United States, (3)NASA Goddard SFC, Greenbelt, MD, United States, (4)NASA/Goddard Space Flight Ctr, Greenbelt, MD, United States, (5)Michigan Tech University, Houghton, MI, United States, (6)Canadian Meteorological Ctr, Dorval, QC, Canada