Hyunglok Kim, University of Virginia, Charlottesville, VA, United States, Yonghwan Kwon, NASA Goddard Space Flight Center / UMD ESSIC, Greenbelt, MD, United States; University of Maryland, College Park, MD, United States, Sujay V Kumar, NASA Goddard Space Flight Center, Greenbelt, MD, United States and Venkat Lakshmi, Professor, University of Virginia, Charlottesville, VA, United States