Institution: | (1) Emeritus Institute of Behavioral Science, University of Colorado, 80309 Boulder, CO, U.S.A.;(2) Center for Agricultural Meteorology and Climatology University of Nebraska, 68583-0728 Lincoln, NE, U.S.A.;(3) Department of Geography, University of Toronto, M5S 1A1 Toronto, Ontario, Canada;(4) National Center for Atmospheric Research, 80307 Boulder, Colorado, U.S.A. |