Numerical investigation of ripple migration under free-surface waves --- mechanisms of the onshore transport

Zhen Cheng, Woods Hole Oceanographic Institution, Applied Ocean Physics and Engineering, Woods Hole, MA, United States, Peter Traykovski, Woods Hole Oceanograph Inst, Falmouth, MA, United States and Tian-Jian Hsu, Center for Applied Coastal Research, University of Delaware, Newark, DE