Dry Spells and Extreme Precipitation are The Main Trigger of Landslides in Central Europe

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F19%3AA20021E8" target="_blank" >RIV/61988987:17310/19:A20021E8 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00020699:_____/19:N0000135

Výsledek na webu

<a href="https://www.nature.com/articles/s41598-019-51148-2" target="_blank" >https://www.nature.com/articles/s41598-019-51148-2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41598-019-51148-2" target="_blank" >10.1038/s41598-019-51148-2</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Dry Spells and Extreme Precipitation are The Main Trigger of Landslides in Central Europe

Popis výsledku v původním jazyce

Landslides are frequently triggered by extreme meteorological events which has led to concern anddebate about their activity in a future greenhouse climate. It is also hypothesized that dry spellspreceding triggering rainfall may increase slope predisposition to sliding, especially in the case ofclay-rich soils. Here we combined dendrogeomorphic time series of landslides and climatic records totest the possible role of dry spells and extreme downpours on process activity in the Outer WesternCarpathians (Central Europe). To this end, we tested time series of past frequencies and return periodsof landslide reactivations at the regional scale with a Generalized Linear Mixed (GLM) model toexplore linkages between landslide occurrences and triggering climate variables. Results show thatlandslide reactivations are concentrated during years in which spring and summer precipitation sumswere signifcantly higher than usual, and that triggering mechanisms vary between diferent typesof landslides (i.e. complex, shallow or fow-like). The GLM model also points to the susceptibility oflandslide bodies to the combined occurrence of long, dry spells followed by large precipitation. Suchsituations are likely to increase in frequency in the future as climate models predict an enhancementof heatwaves and dry spells in future summers, that would be interrupted by less frequent, yet moreintense storms, especially also in mountain regions.

Název v anglickém jazyce

Dry Spells and Extreme Precipitation are The Main Trigger of Landslides in Central Europe

Popis výsledku anglicky

Landslides are frequently triggered by extreme meteorological events which has led to concern anddebate about their activity in a future greenhouse climate. It is also hypothesized that dry spellspreceding triggering rainfall may increase slope predisposition to sliding, especially in the case ofclay-rich soils. Here we combined dendrogeomorphic time series of landslides and climatic records totest the possible role of dry spells and extreme downpours on process activity in the Outer WesternCarpathians (Central Europe). To this end, we tested time series of past frequencies and return periodsof landslide reactivations at the regional scale with a Generalized Linear Mixed (GLM) model toexplore linkages between landslide occurrences and triggering climate variables. Results show thatlandslide reactivations are concentrated during years in which spring and summer precipitation sumswere signifcantly higher than usual, and that triggering mechanisms vary between diferent typesof landslides (i.e. complex, shallow or fow-like). The GLM model also points to the susceptibility oflandslide bodies to the combined occurrence of long, dry spells followed by large precipitation. Suchsituations are likely to increase in frequency in the future as climate models predict an enhancementof heatwaves and dry spells in future summers, that would be interrupted by less frequent, yet moreintense storms, especially also in mountain regions.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10508 - Physical geography

Projekt

<a href="/cs/project/GA19-01866S" target="_blank" >GA19-01866S: Staré sesuvy: skutečně neaktivní?</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Scientific Reports

ISSN

2045-2322

e-ISSN

—

Svazek periodika

9

Číslo periodika v rámci svazku

October

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

—

Kód UT WoS článku

000489555200072

EID výsledku v databázi Scopus

2-s2.0-85073109819