Upper Midwest Environmental Sciences Center, United States Geological Survey, La Crosse, Wisconsin, United States of America.|Wisconsin Water Science Center, United States Geological Survey, Middelton, Wisconsin, United States of America.|Upper Midwest Environmental Sciences Center, United States Geological Survey, La Crosse, Wisconsin, United States of America.|Upper Midwest Environmental Sciences Center, United States Geological Survey, La Crosse, Wisconsin, United States of America.|Upper Midwest Environmental Sciences Center, United States Geological Survey, La Crosse, Wisconsin, United States of America.|Upper Midwest Environmental Sciences Center, United States Geological Survey, La Crosse, Wisconsin, United States of America.|Department of Computer Science, University of Wisconsin-Madison, Madison, Winconsin, United States of America.