[1] Stanford Univ, Dept Environm Earth Syst Sci, Stanford, CA 94305 USA
[2] Engn Res & Dev Ctr, Cold Regions Res & Engn Lab, Hanover, NH 03755 USA
[3] Thayer Sch Engn, Dartmouth Coll, Hanover, NH 03755 USA
[4] Woods Hole Oceanog Inst, Dept Phys Oceanog, Woods Hole, MA 02543 USA
[5] Bigelow Lab Ocean Sci, West Boothbay Harbor, ME 04575 USA
[6] Bermuda Inst Ocean Sci, Ferry Reach, Bermuda
[7] Univ South Carolina, Marine Sci Program, Dept Earth & Ocean Sci, Columbia, SC 29208 USA
[8] Woods Hole Oceanog Inst, Dept Biol, Woods Hole, MA 02543 USA
[9] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA
[10] Clark Univ, Grad Sch Geog, Worcester, MA 01610 USA
[11] Univ Alaska Fairbanks, Sch Fisheries & Ocean Sci, Fairbanks, AK 99775 USA
[12] Univ Paris 06, Lab Oceanograph Villefranche, F-06238 Villefranche sur Mer, France
[13] Univ Toronto, Dept Phys, Toronto, ON M5S IA7, Canada
[14] Univ Paris 06, Lab Oceanog Microbienne, Observ Oceanol, CNRS, F-66650 Banyuls Sur Mer, France
[15] Colby Coll, Waterville, ME 04901 USA