Articles | Volume 10, issue 9
Geosci. Model Dev., 10, 3547–3566, 2017
https://doi.org/10.5194/gmd-10-3547-2017

Special issue: The externalised surface model SURFEX

Geosci. Model Dev., 10, 3547–3566, 2017
https://doi.org/10.5194/gmd-10-3547-2017
Model description paper
26 Sep 2017
Model description paper | 26 Sep 2017

Implementation of a physically based water percolation routine in the Crocus/SURFEX (V7.3) snowpack model

Christopher J. L. D'Amboise et al.

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Latest update: 03 Jul 2022
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Short summary
We present a new water percolation routine added to the Crocus model. The new routine is physically based, describing motion of water through a layered snowpack considering capillary-driven and gravity flow. We tested the routine on two data sets. Wet-snow layers were able to reach higher saturations than the empirical routine. Meaningful applicability is limited until new and better parameterizations of water retention are developed, and feedbacks are adjusted to handle higher saturations.