U.S. Geological Survey, 520 North Park Avenue, Suite 221, Tucson, AZ 85719-5035 United States
Department of Hydrology and Water Resources, University of Arizona, Building 11, 1133 E. North Campus Drive, P.O.Box 210011, Tucson, AZ 85721 United States
U.S. Geological Survey, 520 North Park Avenue, Suite 221, Tucson, AZ 85719-5035 United States ;
Department of Hydrology and Water Resources, University of Arizona, Building 11, 1133 E. North Campus Drive, P.O.Box 210011, Tucson, AZ 85721 United States ;