Item: Water outflow from snow during rain and melt events; milford highway, new zealand
Title: Water outflow from snow during rain and melt events; milford highway, new zealand
Proceedings: Proceedings of the 2006 International Snow Science Workshop, Telluride, Colorado
Authors: W. Carran and H. Conway Works Infrastructure, New Zealand and University of Washington, U.S.A.
Abstract: Avalanches often release within a few minutes after the onset of rain on new snow. The avalanche potential remains high until drainage through the snow pack has been established; tracking outflow of water is a useful tool for forecasting the return to stability during rain and melt events. We now have three lysimeters located near the start zones of avalanches that threaten the Milford Highway in New Zealand. Results show that few avalanches release after drainage is established. The time between the onset of rain and first outflow varies depending on the rate of input as well as the snow stratigraphy.
Keywords: stratigraphy, rain, melt, avalanche release, forecasting
Digital Abstract Not Available