Elizabeth Ultee, Massachusetts Institute of Technology, Cambridge, MA, United States, Colin R. Meyer, Dartmouth College, Hanover, United States, Brent M Minchew, Massachusetts Institute of Technology, Department of Earth, Atmospheric and Planetary Sciences, Cambridge, MA, United States, Tomas Johannesson, Icelandic Meteorological Office, Reykjavik, Iceland and Alexander Robel, Georgia Institute of Technology Main Campus, Atlanta, GA, United States