1. Laboratoire Atmosphere, Milieux et Observations Spatiales (LATMOS); IPSL, CNRS, UVSQ, UPMC; Paris France
2. LATMOS/IPSL, UPMC; Univ Paris06 Sorbonne Universités, UVSQ, CNRS; Paris France
3. Office National d'Etudes et de Recherches Aérospatiales; Toulouse France
4. Laboratory for Atmospheric and Space Physics; University of Colorado Boulder; Boulder CO USA
5. NASA Goddard Space Flight Center; Greenbelt MD USA
6. Department of Physics and Astronomy; University of Iowa; Iowa City IA USA
7. Space Sciences Laboratory; University of California; Berkeley CA USA