1. Department of Earth Science; Boston University; Boston Massachusetts USA
2. Woods Hole Oceanographic Institution; Woods Hole Massachusetts USA
3. College of Marine Sciences; University of South Florida; St. Petersburg Florida USA
4. Department of Geological Sciences; University of Florida; Gainesville Florida USA
5. Bjerknes Centre for Climate Research; University of Bergen; Bergen Norway
6. Institute of Marine Sciences; University of California; Santa Cruz California USA