Affiliation: | (1) Department of Oceanic, Atmospheric, and Space Sciences, University of Michigan, Ann Arbor, MI 48109, USA;(2) Lunar and Plenetary Laboratory, University of Arizona, Tucson, AZ 85721, USA;(3) School of Physics and Astronomy, University of Birmingham, B15 2TT, UK;(4) Space Science Department of ESA, ESTEC, NL-2200 AG Noordwijk, The Netherlands |