How do dust and marine aerosols impact snow precipitation over the western US mountainous region?

Jiwen Fan1, Yun Lin1, Pengfei Li2, L. Ruby Leung3 and Paul J DeMott4, (1)Pacific Northwest National Laboratory, Richland, United States, (2)China University of Geosciences, Beijing, China, (3)Pacific Northwest National Laboratory, Atmospheric Sciences and Global Change Division, Richland, WA, United States, (4)Colorado State University, Department of Atmospheric Science, Fort Collins, United States