1. School of Earth and Ocean Sciences, University of Victoria, Victoria, British Columbia, Canada
2. Institute for Atmospheric and Climate Science, ETH, Zurich, Switzerland
3. Georges Lemaître Centre for Earth and Climate Research, Earth and Life Institute, Université Catholique de Louvain, Louvain-La-Neuve, Belgium
4. Climate and Environmental Physics, Physics Institute, University of Bern, Bern, Switzerland
5. Oeschger Centre for Climate Change Research, University of Bern, Bern, Switzerland
6. Research Institute for Global Change, JAMSTEC, Yokohama, Japan
7. Department of Earth Sciences, University of Minnesota, Twin Cities, Minneapolis, Minnesota, USA
8. Atmosphere and Ocean Research Institute, University of Tokyo, Tokyo, Japan
9. Department of Geography, Simon Fraser University, Vancouver, British Columbia, Canada