Soil drought and circulation types in a longitudinal transect over central Europe

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00020699%3A_____%2F20%3AN0000032" target="_blank" >RIV/00020699:_____/20:N0000032 - isvavai.cz</a>

Výsledek na webu

<a href="https://rmets.onlinelibrary.wiley.com/doi/10.1002/joc.6883" target="_blank" >https://rmets.onlinelibrary.wiley.com/doi/10.1002/joc.6883</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/joc.6883" target="_blank" >10.1002/joc.6883</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Soil drought and circulation types in a longitudinal transect over central Europe

Popis výsledku v původním jazyce

Among the variables that can be employed to characterize agricultural drought, soil drought is of particular importance. This contribution uses gridded soil-drought values calculated from the SoilClim model for the 1961–2019 period to analyse soil drought episodes (based on the 10th percentile) in four lowlands, relatively homogeneous regions in central Europe that provide a longitudinal transect over central Europe. These areas are predominantly located at altitudes of below 400 m asl and include central Bohemia, southern Moravia and an adjacent part of Slovakia, southern Slovakia and eastern Slovakia. The results indicate that, after 1990, such episodes occurred largely in the summer half-year (April–September), accompanied by an increasing linear trend in the 1961–2019 period, while the situation was reversed in the winter half-year (October–March). Selected drought episodes are further divided into three phases (Phase I – origin, Phase II – course, Phase III – end) and investigated separately in terms of precipitation and objective classification of circulation types based on flow strength, direction and vorticity. Decreases in the frequency of precipitation-rich cyclonic and the directional types associated with higher daily precipitation totals, together with increases in precipitation-poor anticyclonic types, were responsible for soil-drought Phases I and II, with the opposite pertaining to Phase III. Differences in the effects of circulation types on precipitation and soil-drought occurrence were considerable, particularly for central Bohemia compared with the other three regions. The results obtained are also discussed with respect to data uncertainty and their broader spatiotemporal context.

Název v anglickém jazyce

Soil drought and circulation types in a longitudinal transect over central Europe

Popis výsledku anglicky

Among the variables that can be employed to characterize agricultural drought, soil drought is of particular importance. This contribution uses gridded soil-drought values calculated from the SoilClim model for the 1961–2019 period to analyse soil drought episodes (based on the 10th percentile) in four lowlands, relatively homogeneous regions in central Europe that provide a longitudinal transect over central Europe. These areas are predominantly located at altitudes of below 400 m asl and include central Bohemia, southern Moravia and an adjacent part of Slovakia, southern Slovakia and eastern Slovakia. The results indicate that, after 1990, such episodes occurred largely in the summer half-year (April–September), accompanied by an increasing linear trend in the 1961–2019 period, while the situation was reversed in the winter half-year (October–March). Selected drought episodes are further divided into three phases (Phase I – origin, Phase II – course, Phase III – end) and investigated separately in terms of precipitation and objective classification of circulation types based on flow strength, direction and vorticity. Decreases in the frequency of precipitation-rich cyclonic and the directional types associated with higher daily precipitation totals, together with increases in precipitation-poor anticyclonic types, were responsible for soil-drought Phases I and II, with the opposite pertaining to Phase III. Differences in the effects of circulation types on precipitation and soil-drought occurrence were considerable, particularly for central Bohemia compared with the other three regions. The results obtained are also discussed with respect to data uncertainty and their broader spatiotemporal context.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10510 - Climatic research

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

International Journal of Climatology

ISSN

1097-0088

e-ISSN

—

Svazek periodika

41

Číslo periodika v rámci svazku

S1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

17

Strana od-do

E2834-E2850

Kód UT WoS článku

000580674600001

EID výsledku v databázi Scopus

2-s2.0-85093513350