Danny G Marks¹, Scott Havens¹, Andrew R Hedrick¹, Ernesto Trujillo¹, Frederick B. Pierson¹, Jeffery Deems², S. Mckenzie Skiles³, Kat Bormann⁴, Mark Robertson¹, Hans-Peter Marshall⁵ and Thomas H Painter⁶, (1)USDA-ARS, Northwest Watershed Research Center, Boise, ID, United States, (2)National Snow and Ice Data Center, Boulder, United States, (3)University of Utah�, Salt Lake City, United States, (4)University of New South Wales, Pasadena, CA, United States, (5)Boise State University, Department of Geosciences, Boise, ID, United States, (6)Jet Propulsion Laboratory, Pasadena, CA, United States