James H Clemmons¹, Douglas E. Rowland², James H Hecht³, Robert F Pfaff Jr⁴, Robert Michell⁵, Joran Moen⁶, Kjellmar Oksavik⁷, Fred Sigernes⁸, Mark Lester⁹ and Andres Spicher⁶, (1)University of New Hampshire Main Campus, Durham, NH, United States, (2)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (3)The Aerospace Corp, Los Angeles, CA, United States, (4)NASA/GSFC, Greenbelt, MD, United States, (5)University of Maryland College Park/ NASA GSFC, College Park, MD, United States, (6)University of Oslo, Oslo, Norway, (7)University of Bergen, Bergen, Norway, (8)University Centre in Svalbard, Longyearbyen, Norway, (9)University of Leicester, Leicester, United Kingdom