1. Cooperative Institute for the Climate, Ocean, and Ecosystem Studies, formerly Joint Institute for the Study of the Atmosphere and Ocean University of Washington Seattle WA USA
2. Pacific Marine Environmental Laboratory National Oceanic and Atmospheric Administration Seattle WA USA
3. NORCE Norwegian Research Centre Bjerknes Centre for Climate Research Bergen Norway
4. Geophysical Institute, Bjerknes Centre for Climate Research University of Bergen Bergen Norway
5. Department of Geography and Earth Research Institute University of California Santa Barbara CA USA