1. National Wind Technology Center; National Renewable Energy Laboratory; 15013 Denver West Parkway Golden CO 80401-3305 USA
2. WSL Institute for Snow and Avalanche Research; SLF; 7260 Davos Dorf Switzerland
3. Environmental Fluid Dynamics Laboratory, School of Architecture, Civil and Environmental Engineering; Ecole polytechnique fédérale de Lausanne EPFL; CH-1015 Lausanne Switzerland
4. Currently unaffiliated
5. Laboratory of Cryospheric Sciences, School of Architecture, Civil and Environmental Engineering; Ecole polytechnique fédérale de Lausanne EPFL; CH-1015 Lausanne Switzerland