Ernesto Tejedor Vargas, University at Albany State University of New York, Albany, NY, United States, Nathan John Steiger, Lamont -Doherty Earth Observatory, Palisades, NY, United States, Jason E Smerdon, Lamont-Doherty Earth Observatory, Palisades, NY, United States, Roberto Serrano-Notivoli, Spanish National Research Council, Zaragoza, Spain and Mathias F Vuille, University at Albany, State University of New York, Department of Atmospheric and Environmental Sciences, Albany, NY, United States