Dax Christian Soule, CUNY Queens College, School of Earth and Environmental Sciences, Flushing, NY, United States, Guangyu Xu, Applied Physics Laboratory University of Washington, Seattle, United States, Karen G Bemis, Rutgers, The State University of New Jersey - New Brunswick, Marine and Coastal Sciences, New Brunswick, United States and William Chadwick Jr., Oregon State University, Corvallis, United States