Articles | Volume 24, issue 3
Hydrol. Earth Syst. Sci., 24, 1527–1542, 2020
https://doi.org/10.5194/hess-24-1527-2020

Special issue: Changes in the Mediterranean hydrology: observation and...

Hydrol. Earth Syst. Sci., 24, 1527–1542, 2020
https://doi.org/10.5194/hess-24-1527-2020
Research article
01 Apr 2020
Research article | 01 Apr 2020

The role of liquid water percolation representation in estimating snow water equivalent in a Mediterranean mountain region (Mount Lebanon)

Abbas Fayad and Simon Gascoin

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Revised manuscript accepted for HESS
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Cited articles

Aouad-Rizk, A., Job, J.-O., Khalil, S., Touma, T., Bitar, C., Boqcuillon, C., and Najem, W.: Snow in Lebanon: a preliminary study of snow cover over Mount Lebanon and a simple snowmelt model/Etude préliminaire du couvert neigeux et modèle de fonte des neige pour le Mont Liban, Hydrolog. Sci. J., 50, 555–569, https://doi.org/10.1623/hysj.50.3.555.65023, 2005. 
Baba, M. W., Gascoin, S., Kinnard, C., Marchane, A., and Hanich, L.: Assimilation of Sentinel-2 Data into a Snowpack Model in the High Atlas of Morocco, Remote Sens., 10, 1982, https://doi.org/10.3390/rs10121982, 2018a. 
Baba, M. W., Gascoin, S., Jarlan, L., Simonneaux, V., and Hanich, L.: Variations of the snow water equivalent in the Ourika catchment (Morocco) over 2000–2018 using downscaled MERRA-2 data, Water, 10, 1120, https://doi.org/10.3390/w10091120, 2018b. 
Baba, M. W., Gascoin, S., Kinnard, C., Marchane, A., and Hanich, L.: Effect of digital elevation model resolution on the simulation of the snow cover evolution in the High Atlas, Water Resour. Res., 55, 5360–5378, https://doi.org/10.1029/2018WR023789, 2019. 
Bruland, O., Liston, G. E., Vonk, J., Sand, K., and Killingtveit, Å.: Modelling the snow distribution at two high arctic sites at Svalbard, Norway, and at an alpine site in central Norway, Hydrol. Res., 35, 191–208, 2004. 
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Short summary
Seasonal snowpack is an essential water resource in Mediterranean mountains. Here, we look at the role of water percolation in simulating snow mass (SWE), for the first time, in Mount Lebanon. We use SnowModel, a distributed snow model, forced by station data. The main sources of uncertainty were attributed to rain–snow partitioning, transient winter snowmelt, and the subpixel snow cover. Yet, we show that a process-based model is suitable to simulate wet snowpack in Mediterranean mountains.