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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41330%2F17%3A74071" target="_blank" >RIV/60460709:41330/17:74071 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.5194/hess-21-1741-2017" target="_blank" >http://dx.doi.org/10.5194/hess-21-1741-2017</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5194/hess-21-1741-2017" target="_blank" >10.5194/hess-21-1741-2017</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

Rain on snow (ROS) has the potential to gener- ate severe floods. Thus, precisely predicting the effect of an approaching ROS event on runoff formation is very impor- tant. Data analyses from past ROS events have shown that a snowpack experiencing ROS can either release runoff im- mediately or delay it considerably. This delay is a result of refreeze of liquid water and water transport, which in turn is dependent on snow grain properties but also on the pres- ence of structures such as ice layers or capillary barriers. During sprinkling experiments, preferential flow was found to be a process that critically impacted the timing of snow- pack runoff. However, current one-dimensional operational snowpack models are not capable of addressing this phe- nomenon. For this study, the detailed physics-based snow- pack model SNOWPACK is extended with a water transport scheme accounting for preferential flow. The implemented Richards equation solver is modified using a dual-domain approach to simulate water tr

Název v anglickém jazyce

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

Popis výsledku anglicky

Rain on snow (ROS) has the potential to gener- ate severe floods. Thus, precisely predicting the effect of an approaching ROS event on runoff formation is very impor- tant. Data analyses from past ROS events have shown that a snowpack experiencing ROS can either release runoff im- mediately or delay it considerably. This delay is a result of refreeze of liquid water and water transport, which in turn is dependent on snow grain properties but also on the pres- ence of structures such as ice layers or capillary barriers. During sprinkling experiments, preferential flow was found to be a process that critically impacted the timing of snow- pack runoff. However, current one-dimensional operational snowpack models are not capable of addressing this phe- nomenon. For this study, the detailed physics-based snow- pack model SNOWPACK is extended with a water transport scheme accounting for preferential flow. The implemented Richards equation solver is modified using a dual-domain approach to simulate water tr

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10501 - Hydrology

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Hydrology and Earth System Sciences

ISSN

1027-5606

e-ISSN

—

Svazek periodika

21

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

16

Strana od-do

1741-1756

Kód UT WoS článku

000398906800001

EID výsledku v databázi Scopus

2-s2.0-85016446359