J 2015

Soil moisture trends in the Czech Republic between 1961 and 2012

TRNKA, Miroslav, Rudolf BRÁZDIL, M. MOŽNÝ, Petr ŠTĚPÁNEK, Petr DOBROVOLNÝ et. al.

Basic information

Original name

Soil moisture trends in the Czech Republic between 1961 and 2012

Authors

TRNKA, Miroslav (203 Czech Republic, guarantor), Rudolf BRÁZDIL (203 Czech Republic, belonging to the institution), M. MOŽNÝ (203 Czech Republic), Petr ŠTĚPÁNEK (203 Czech Republic), Petr DOBROVOLNÝ (203 Czech Republic, belonging to the institution), Pavel ZAHRADNÍČEK (203 Czech Republic), J. BALEK (203 Czech Republic), D. SEMERÁDOVÁ (203 Czech Republic), M. DUBROVSKÝ (203 Czech Republic), P. HLAVINKA (203 Czech Republic), Josef EITZINGER (40 Austria), B. WARDLOW (840 United States of America), M. SVOBODA (840 United States of America), M. HAYES (840 United States of America) and Zdeněk ŽALUD (203 Czech Republic)

Edition

International Journal of Climatology, HOBOKEN, Wiley, 2015, 0899-8418

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10500 1.5. Earth and related environmental sciences

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 3.609

RIV identification code

RIV/00216224:14310/15:00081688

Organization unit

Faculty of Science

UT WoS

000363682500002

Keywords in English

soil moisture; drought assessment; drought climatology; water balance; climate dice; observed climate change; Czech Republic

Tags

Tags

International impact, Reviewed
Změněno: 8/4/2016 14:41, Ing. Andrea Mikešková

Abstract

V originále

Central Europe is generally not considered a drought-prone region compared with, for example, the Mediterranean. However, Central Europe, including the Czech Republic, recently experienced a series of drought events with substantial impacts, especially on crop production. Because agriculture systems, and vegetation in general, have adapted to evenly distributed precipitation, the region is susceptible to even short-term droughts. The recent drought events may be the result of multi-decadal climate variability or a more general trend, with some studies showing a link to a more frequent occurrence of atmospheric circulation patterns that are conducive to drought. This study introduces an innovation to the standard methodological approaches in evaluating drought climatology by analysing soil moisture conditions over more than 50 years. This approach relies on state-of-the-art observed weather data and state-of-the-art soil moisture model data, and focuses on the dynamic simulation of soil moisture content with high temporal (daily) and spatial (500 m) resolution in a diverse landscape. Statistically significant trends of decreasing soil moisture content were found, notably during May and June between 1961 and 2012. In contrast, trends towards higher soil moisture content were noted during the October-March time period. When the periods of 2001-2012 and 1961-1980 were compared, the probability of drought between April and June was found to increase by 50%. This indicates a loading of the climate dice' towards drier conditions. The probability of extreme drought events has also been found to increase. These results support concerns about the potentially increased severity of drought events in Central Europe under projected climate change.

Links

CZ.1.07/2.3.00/20.0248, interní kód MU
Name: Vytvoření interdisciplinárního vědeckého týmu se zaměřením na výzkum sucha
Investor: Ministry of Education, Youth and Sports of the CR, 2.3 Human resources in research and development
GAP209/11/0956, research and development project
Name: Globální a regionální modelové simulace klimatu ve střední Evropě v 18.-20. století v porovnání s pozorovaným a rekonstruovaným klimatem
Investor: Czech Science Foundation
GA13-04291S, research and development project
Name: Rekonstrukce hydro-klimatických podmínek jara a léta posledního milénia v České republice na základě dubové standardní chronologie
Investor: Czech Science Foundation