1. Meteorology and Glaciology Group, National Institute of Polar Research Tachikawa Japan
2. School of Earth, Energy and Environmental Engineering, Kitami Institute of Technology Kitami Japan
3. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research Potsdam Germany
4. Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder Boulder CO USA
5. Department of Atmospheric and Oceanic Sciences University of Colorado Boulder CO USA
6. Department of Geography University of Liége Liége Belgium
7. Department of Environmental Meteorology University of Trier Trier Germany
8. British Antarctic Survey, National Environmental Research Council Cambridge UK
9. Physical Sciences Division NOAA Earth System Research Laboratory Boulder CO USA
10. Met Office Exeter UK