1. Atmospheric and Environmental Research, Inc. Lexington MA USA
2. Climate and Global Dynamics Laboratory National Center for Atmospheric Research Boulder CO USA
3. Department of Earth, Ocean and Ecological Sciences University of Liverpool Liverpool UK
4. National Oceanography Centre Liverpool UK
5. ICARUS, Department of Geography Maynooth University Maynooth Ireland
6. Woods Hole Oceanographic Institution Woods Hole MA USA
7. Department of Geology and Geophysics Yale University New Haven CT USA