Nander Wever, University of Colorado, Boulder, Department of Atmospheric and Oceanic Sciences, Boulder, United States, Eric Keenan, University of Colorado Boulder, Atmospheric and Oceanic Sciences, Boulder, CO, United States, Michael Lehning, WSL/SLF and EPFL, Davos Dorf, Switzerland, Hendrik Huwald, EPFL Swiss Federal Institute of Technology Lausanne, Lausanne, Switzerland and Jan Lenaerts, University of Colorado, Boulder, ATOC, Boulder, United States