Modification and Mobility of Dunes and Ripples in Middle and High Southern Latitude Dune Fields

Maria E Banks, NASA Goddard Space Flight Center, Greenbelt, MD, United States; Smithsonian Institution, National Air and Space Museum, Center for Earth and Planetary Studies, Washington, DC, DC, United States, Lori K Fenton, Carl Sagan Center, SETI Inst., Mountain View, United States, Matthew Chojnacki, University of Arizona, Lunar and Planetary Laboratory, Tucson, AZ, United States and Simone Silvestro, SETI Institute, mountain view, CA, United States