Elsa Culler, University of Colorado at Boulder, Civil, Environmental, and Architectural Engineering, Boulder, CO, United States, Ben Livneh, Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States, Kristy French Tiampo, University of Western Ontario, Department of Earth Sciences, London, ON, Canada and Balaji Rajagopalan, University of Colorado at Boulder, Department of Civil, Environmental and Architectural Engineering and CIRES, Boulder, CO, United States