The authors acknowledge with gratitude the constructive suggestions made by colleague reviewers Robert M. Hirsch and Timothy A. Cohn (USGS) and by two anonymous reviewers. Lauren Hay (USGS) provided PRMS output data. Climate-model output data were provided by the Commonwealth Scientific and Industrial Research Organization (Australia), the Institute for Numerical Mathematics (Russia), and the Center for Climate System Research (Japan), through the Program for Climate Model Diagnosis and Intercomparison at the Lawrence Livermore National Laboratory (United States). Analysis of specific model outputs in this paper does not imply endorsement of the models by the U.S. government.
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