Future changes in snowpack will impact seasonal runoff and low flows in Czechia

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F21%3A10433323" target="_blank" >RIV/00216208:11310/21:10433323 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985874:_____/21:00545028

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=Ixp4xJ3rMc" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=Ixp4xJ3rMc</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ejrh.2021.100899" target="_blank" >10.1016/j.ejrh.2021.100899</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Future changes in snowpack will impact seasonal runoff and low flows in Czechia

Popis výsledku v původním jazyce

Study Region Central Europe, Czechia. Study Focus Mountains are referred to as &quot;water towers&quot; because they substantially affect the hydrology of downstream areas. However, snow storages will decrease in the future due to the increase in air temperature which will affect streamflow regime. Main objectives of this study were 1) to simulate the future changes in snow for a large set of mountain catchments in Czechia, reflecting a wide range of climate projections and 2) to analyse how the snow changes will affect groundwater recharge, streamflow seasonality and low flows in the future. New Hydrological Insights The future hydrological projections showed a decrease in annual maximum SWE by 30 %-70 % in the study area until the end of the 21st century. Additionally, snowmelt was found to occur on average 3-4 weeks earlier. The results showed the large variability between individual climate chains and indicated that the increase in air temperature causing the decrease in snowfall might be partly compensated by the increase in winter precipitation. Changes in snowpack will cause the highest streamflow during melting season to occur one month earlier, in addition to lower spring runoff volumes due to lower snowmelt inputs. The future climate projections leading to overall dry conditions in summer are associated with both the lowest summer precipitation and seasonal snowpack. The expected lower snow storages might therefore contribute to more extreme low flow periods.

Název v anglickém jazyce

Future changes in snowpack will impact seasonal runoff and low flows in Czechia

Popis výsledku anglicky

Study Region Central Europe, Czechia. Study Focus Mountains are referred to as &quot;water towers&quot; because they substantially affect the hydrology of downstream areas. However, snow storages will decrease in the future due to the increase in air temperature which will affect streamflow regime. Main objectives of this study were 1) to simulate the future changes in snow for a large set of mountain catchments in Czechia, reflecting a wide range of climate projections and 2) to analyse how the snow changes will affect groundwater recharge, streamflow seasonality and low flows in the future. New Hydrological Insights The future hydrological projections showed a decrease in annual maximum SWE by 30 %-70 % in the study area until the end of the 21st century. Additionally, snowmelt was found to occur on average 3-4 weeks earlier. The results showed the large variability between individual climate chains and indicated that the increase in air temperature causing the decrease in snowfall might be partly compensated by the increase in winter precipitation. Changes in snowpack will cause the highest streamflow during melting season to occur one month earlier, in addition to lower spring runoff volumes due to lower snowmelt inputs. The future climate projections leading to overall dry conditions in summer are associated with both the lowest summer precipitation and seasonal snowpack. The expected lower snow storages might therefore contribute to more extreme low flow periods.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10508 - Physical geography

Projekt

<a href="/cs/project/SS02030040" target="_blank" >SS02030040: Predikce, hodnocení a výzkum citlivosti vybraných systémů, vlivu sucha a změny klimatu v Česku</a><br>

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Journal of Hydrology: Regional Studies [online]

ISSN

2214-5818

e-ISSN

2214-5818

Svazek periodika

37

Číslo periodika v rámci svazku

October

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

16

Strana od-do

100899

Kód UT WoS článku

000708973000005

EID výsledku v databázi Scopus

2-s2.0-85113673750