Modelling liquid water transport in snow under rain-on-snow conditions – considering preferential flow

Würzer, Sebastian; Wever, Nander; Juras, Roman; Lehning, Michael; Jonas, Tobias

doi:10.5194/hess-21-1741-2017

Articles | Volume 21, issue 3

https://doi.org/10.5194/hess-21-1741-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/hess-21-1741-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 21, issue 3

Research article

|

24 Mar 2017

Research article |

| 24 Mar 2017

Modelling liquid water transport in snow under rain-on-snow conditions – considering preferential flow

Sebastian Würzer, Nander Wever, Roman Juras, Michael Lehning, and Tobias Jonas

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Cumulative views and downloads (calculated since 03 Aug 2016)

Month	HTML	PDF	XML	Total
Aug 2016	125	33	4	162
Sep 2016	16	5	1	22
Oct 2016	17	10	0	27
Nov 2016	8	6	0	14
Dec 2016	1	0	1
Jan 2017	6	5	0	11
Feb 2017	11	0	11
Mar 2017	261	68	7	336
Apr 2017	347	70	10	427
May 2017	56	25	1	82
Jun 2017	39	21	1	61
Jul 2017	28	18	0	46
Aug 2017	19	18	0	37
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Oct 2017	20	25	0	45
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Latest update: 08 Nov 2025

Short summary

We discuss a dual-domain water transport model in a physics-based snowpack model to account for preferential flow (PF) in addition to matrix flow. So far no operationally used snow model has explicitly accounted for PF. The new approach is compared to existing water transport models and validated against in situ data from sprinkling and natural rain-on-snow (ROS) events. Our work demonstrates the benefit of considering PF in modelling hourly snowpack runoff, especially during ROS conditions.