1. Department of Physical OceanographyWoods Hole Oceanographic InstitutionWoods Hole Massachusetts USA
2. Norwegian Polar InstituteTromsø Norway
3. Geophysical Institute, Bjerknes Centre for Climate ResearchUniversity of BergenBergen Norway
4. Institute of Marine ResearchTromsø Norway
5. College of Oceanic and Atmospheric SciencesOregon State UniversityCorvallis Oregon USA