[1] City Univ New York, City Coll New York, Dept Earth & Atmospher Sci, New York, NY 10031 USA
[2] City Univ New York, Grad Ctr, Earth & Environm Sci Program, New York, NY 10016 USA
[3] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
[4] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
[5] St Louis Univ, Dept Earth Environm & Geospatial Sci, St Louis, MO 63108 USA