Rain-on-snow events in mountainous catchments under climate change

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F25%3A10503846" target="_blank" >RIV/00216208:11310/25:10503846 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00020699:_____/25:N0000039

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=Lem06WqJ0h" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=Lem06WqJ0h</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5194/hess-29-4199-2025" target="_blank" >10.5194/hess-29-4199-2025</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Rain-on-snow events in mountainous catchments under climate change

Popis výsledku v původním jazyce

The frequency and intensity of rain-on-snow (RoS) events are expected to change in response to climate variations due to changes in precipitation, increases in air temperature, and subsequent changes in the snow cover. In this study, we attributed these changes to the simulated variations in RoS events using a sensitivity analysis of precipitation and air temperature and subsequent effects on RoS-related runoff responses. We selected 93 mountainous catchments located in central Europe across Czechia (60), Switzerland (26), and Germany (7) and used a conceptual hydrological model to simulate runoff components for 24 climate perturbations relative to the reference period 1980-2010. Climate change-driven RoS changes were highly variable over regions, across elevations, and within the cold season. The warmest perturbations suggested a decrease in RoS days by about 75 % for the Czech catchments. In contrast, the Swiss catchments may respond less sensitively, with the number of RoS days even increasing, specifically during winter and at higher elevations. Our results also suggested that the RoS contribution to annual runoff will be considerably reduced from the current 10 % to 2 %-4 % for the warmest perturbations in Czechia and from 18 % to 5 %-9 % in Switzerland. However, the RoS contribution to runoff may increase in winter months, especially for perturbations, leading to an increase in precipitation and demonstrating the joint importance of air temperature and precipitation for future hydrological behaviour in snow-dominated catchments.

Název v anglickém jazyce

Rain-on-snow events in mountainous catchments under climate change

Popis výsledku anglicky

The frequency and intensity of rain-on-snow (RoS) events are expected to change in response to climate variations due to changes in precipitation, increases in air temperature, and subsequent changes in the snow cover. In this study, we attributed these changes to the simulated variations in RoS events using a sensitivity analysis of precipitation and air temperature and subsequent effects on RoS-related runoff responses. We selected 93 mountainous catchments located in central Europe across Czechia (60), Switzerland (26), and Germany (7) and used a conceptual hydrological model to simulate runoff components for 24 climate perturbations relative to the reference period 1980-2010. Climate change-driven RoS changes were highly variable over regions, across elevations, and within the cold season. The warmest perturbations suggested a decrease in RoS days by about 75 % for the Czech catchments. In contrast, the Swiss catchments may respond less sensitively, with the number of RoS days even increasing, specifically during winter and at higher elevations. Our results also suggested that the RoS contribution to annual runoff will be considerably reduced from the current 10 % to 2 %-4 % for the warmest perturbations in Czechia and from 18 % to 5 %-9 % in Switzerland. However, the RoS contribution to runoff may increase in winter months, especially for perturbations, leading to an increase in precipitation and demonstrating the joint importance of air temperature and precipitation for future hydrological behaviour in snow-dominated catchments.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10508 - Physical geography

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

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

1607-7938

Svazek periodika

29

Číslo periodika v rámci svazku

17

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

19

Strana od-do

4199-4217

Kód UT WoS článku

001566481500001

EID výsledku v databázi Scopus

2-s2.0-105022613322