Snow Accumulation and Ablation Model - Snow-17

This model is the GoldSim implementation of the SNOW-17 conceptual model developed by the National Weather Service River Forecast System (NWSRFS). A link to the document written by Eric Anderson is included in this model. It is highly recommended that you read this before using this model. This model uses average daily temperature as the index to determine the energy exchage within the snow-air interface within the watershed being modeled. The only other model input required is precipitation but there a some other coefficients used for calibration (see Input_Data). The model can be used to forecast river flows once proper adjustments have been made to calibration parameters.

The main processes included in this model are the dividing of precipitation into rain/snow, accumulation of snow pack, energy exchange on the snow-air interface, heat deficit in the snowpack, ground melt, and finally outflow from the snowpack.

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