Evaluation of the Snowmelt Runoff Model in the Moroccan High Atlas mountains using two snow-cover estimates

Abstract : In the centre of Morocco, the High Atlas mountain range represents the most important water storage for the neighbouring arid plains through liquid and solid precipitation. In this context, we evaluated the performance of the Snowmelt Runoff Model (SRM) on the five main tributary watersheds of the High Atlas range. Due to the very low density of climate stations in the High Atlas, snowfall and snowmelt processes are difficult to monitor using meteorological data alone. In order to compensate for the lack of in situ data, snow maps are also derived from remotely-sensed data. We compared the streamflow forecasting performance when the model is driven by one or the other estimate of snow-covered area. Both estimates are generally comparable in all watersheds, and satisfactory streamflow simulations were obtained at seasonal time scales using both snow-cover products. However, significant differences can be observed for selected storms, with more accurate streamflow predictions being obtained when the remotely-sensed data are used.
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A. Boudhar, L. Hanich, Gilles Boulet, Benoît Duchemin, B. Berjamy, et al.. Evaluation of the Snowmelt Runoff Model in the Moroccan High Atlas mountains using two snow-cover estimates. Hydrological Sciences Journal, Taylor & Francis, 2009, 54 (6), pp.1094-1113. ⟨ird-00491127⟩

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