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Volume 10, issue 9 | Copyright

Special issue: The externalised surface model SURFEX

Geosci. Model Dev., 10, 3547-3566, 2017
https://doi.org/10.5194/gmd-10-3547-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

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.
Data sets

Filefjell data set NVE https://doi.org/10.11582/2017.00010

Simulated data set (neverland) NVE https://doi.org/10.11582/2017.00009

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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.
We present a new water percolation routine added to the Crocus model. The new routine is...
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