Raimund Wörl1, Josef Höffner1, Boris Strelnikov1, Franz-Josef Lübken1, Michael J. Taylor2, Bifford P. Williams3
1Leibniz-Institute of Atmospheric Physics at the Rostock University, Kühlungsborn, Germany, 2Center for Atmospheric and Space Sciences,
Utah State University, Logan, Utah, United States, 3GATS Inc., Boulder, Colorado, United States