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(A) Conceptual diagram of a model experiment to isolate the role of “active” snowpack during the 6F ROS event. Simulating “no-snow” with the same baseline liquid precipitation effectively illustrates preferential flow through a “passive” snowpack. The difference in accumulated TWI between these two scenarios (B) represents the role of snowpack in augmenting TWI. Baseline rainfall to TWI ratios in the (C) 7J and (d) 6F events show a dominant rainfall contribution to TWI.
