The increasing flashiness in the Czech Republic: Natural variability or recent climate change?
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00020711%3A_____%2F25%3A10155554" target="_blank" >RIV/00020711:_____/25:10155554 - isvavai.cz</a>
Výsledek na webu
<a href="https://www.sciencedirect.com/science/article/pii/S2214581826000571" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2214581826000571</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.6084/m9.figshare.30156571" target="_blank" >10.6084/m9.figshare.30156571</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
The increasing flashiness in the Czech Republic: Natural variability or recent climate change?
Popis výsledku v původním jazyce
Study region: This study examines catchments in the Czech Republic that have generated flash floods in the past, with a focus on hydrological response and physiographic parameters. Study focus: The hydrological response of events with peak discharges exceeding the one-year return period during the summer half-year was evaluated using the flashiness index. Catchments were categorized into clusters I-III based on physiographic parameters, employing principal component analysis and k-medoids clustering. To evaluate Czech flash floods, a descriptive flashiness metric was computed for both the Czech and European flash-flood datasets, enabling cross-regional comparison.New hydrological insights for the region: The results revealed an increase in 1-h flashiness during the recent period from 2018 to 2023 compared to 2005-2010, observed across all three clusters. The highest flashiness values were recorded in a group of small, steep catchments characterized by high terrain roughness, maximum elevations, a dense river network, and compact shape. A comparison of flash floods in the Czech Republic with those in Europe and the Mediterranean indicated that Czech flash floods generally exhibit lower unit peak discharge and 1-h flashiness values, although they can occasionally reach extreme intensities significant within the European and Mediterranean contexts.
Název v anglickém jazyce
The increasing flashiness in the Czech Republic: Natural variability or recent climate change?
Popis výsledku anglicky
Study region: This study examines catchments in the Czech Republic that have generated flash floods in the past, with a focus on hydrological response and physiographic parameters. Study focus: The hydrological response of events with peak discharges exceeding the one-year return period during the summer half-year was evaluated using the flashiness index. Catchments were categorized into clusters I-III based on physiographic parameters, employing principal component analysis and k-medoids clustering. To evaluate Czech flash floods, a descriptive flashiness metric was computed for both the Czech and European flash-flood datasets, enabling cross-regional comparison.New hydrological insights for the region: The results revealed an increase in 1-h flashiness during the recent period from 2018 to 2023 compared to 2005-2010, observed across all three clusters. The highest flashiness values were recorded in a group of small, steep catchments characterized by high terrain roughness, maximum elevations, a dense river network, and compact shape. A comparison of flash floods in the Czech Republic with those in Europe and the Mediterranean indicated that Czech flash floods generally exhibit lower unit peak discharge and 1-h flashiness values, although they can occasionally reach extreme intensities significant within the European and Mediterranean contexts.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10510 - Climatic research
Návaznosti výsledku
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)
Ostatní
Rok uplatnění
2025
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of Hydrology: Regional Studies
ISSN
—
e-ISSN
2214-5818
Svazek periodika
64
Číslo periodika v rámci svazku
April 2026
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
17
Strana od-do
1-17
Kód UT WoS článku
001683228900002
EID výsledku v databázi Scopus
2-s2.0-105034013515