Marissa Despins, University of California Santa Cruz, Ocean Sciences, Santa Cruz, United States, Robert P Mason, University of Connecticut, Marine Sciences, Groton, United States, Yipeng He, Woods Hole Oceanographic Institute, Marine Chemistry & Geochemistry, Woods Hole, United States, Silvia E Newell, University of Michigan Ann Arbor, Ann Arbor, United States and Carl H Lamborg, University of California Santa Cruz, Department of Ocean Sciences, Santa Cruz, CA, United States