[1] Univ Maryland Baltimore Cty, Joint Ctr Earth Syst Technol, Greenbelt, MD USA
[2] NASA, Goddard Space Flight Ctr, Code 612-0, Greenbelt, MD 20771 USA
[3] Univ Ferrara, Dept Phys & Earth Sci, Ferrara, Italy
[4] NASA, Goddard Space Flight Ctr, Wallops Flight Facil, Wallops Isl, VA 23337 USA
[5] NASA, Marshall Space Flight Ctr, Huntsville, AL USA