Ahyoung Ku, PhD, University of Rhode Island, Narragansett, United States, D Randolph Watts, Univ Rhode Island, Narragansett, United States, Meng (Matt) Wei, University of Rhode Island Narragansett Bay, Narragansett, United States, Spahr C Webb, Lamont Doherty Earth Observatory, Palisades, NY, United States, Laura Wallace, GNS science, Lower Hutts, New Zealand and Neville Palmer, GNS Science, Lower Hutt, New Zealand