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Coupled atmosphere-snow modeling for the Arctic
Sarah Byam, University Alaska Fairbanks, USA ABSTRACT A variety of science and management questions in the Arctic require knowledge of snow distributions and blowing snow conditions. A new project is described wherein the aim is to couple a weather forecast model to a snow model in order to simulate blowing and redistribution of snow. The atmospheric model is the Weather Research and Forecasting model used by both the weather prediction and model development communities. The default snow models in the WRF package, which are part of either the Noah or the RUC land surface schemes, neglect redistribution of snow via wind. This is known to be a key process in the evolution of the annual snow pack across Alaska’s North Slope. Validated performance of a different snow model is shown, as well as the coupling with the WRF model for this application.
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