Mikael Kuusela, Carnegie Mellon University, Department of Statistics and Data Science, Pittsburgh, PA, United States, Donata Giglio, University of Colorado Boulder, Department of Atmospheric and Oceanic Sciences, Boulder, CO, United States, Anirban Mondal, Case Western Reserve University, Department of Mathematics, Applied Mathematics and Statistics, Cleveland, OH, United States and Michael Stein, University of Chicago, Department of Statistics, Chicago, IL, United States; Rutgers University, Department of Statistics, Piscataway, NJ, United States