2015
Spring-summer droughts in the Czech Land in 1805–2012 and their forcings
BRÁZDIL, Rudolf; Miroslav TRNKA; Jiří MIKŠOVSKÝ; Ladislava ŘEZNÍČKOVÁ; Petr DOBROVOLNÝ et. al.Základní údaje
Originální název
Spring-summer droughts in the Czech Land in 1805–2012 and their forcings
Autoři
BRÁZDIL, Rudolf (203 Česká republika, garant, domácí); Miroslav TRNKA (203 Česká republika); Jiří MIKŠOVSKÝ (203 Česká republika); Ladislava ŘEZNÍČKOVÁ (203 Česká republika, domácí) a Petr DOBROVOLNÝ (203 Česká republika, domácí)
Vydání
International Journal of Climatology, Wiley, 2015, 0899-8418
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10500 1.5. Earth and related environmental sciences
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 3.609
Kód RIV
RIV/00216224:14310/15:00080603
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000355953600017
EID Scopus
2-s2.0-84930381658
Klíčová slova anglicky
drought; drought indices; fluctuation; trend; forcing; Czech Lands
Změněno: 13. 3. 2018 10:47, Mgr. Ladislava Řezníčková, Ph.D.
Anotace
V originále
Drought is an extreme meteorological phenomenon involving serious economic consequences. In the Czech Lands, it is reflected in significant reductions in agricultural productivity, lack of water for hygiene and industry, and impacts of forest management. Mean monthly temperature and precipitation series created for the Czech Lands for 1805–2012 were used to calculate spring (MAM) and summer (JJA) drought indices (SPI-1, SPI-12, SPEI-1, SPEI-12, Z-index and PDSI), which were then used for further analyses. Fluctuations in drought indices demonstrate an increasing long-term dryness in the Czech climate, statistically significant for SPEI-12 and PDSI in MAM and JJA (in MAM as well for SPEI-1 and Z-index). A significant concentration of drought episodes before 1880 may be attributed to a lack of precipitation, whereas the droughts of recent decades (particularly 2004–2012) are more strongly related to high temperatures. The effects of droughts are reflected in significant reductions in winter wheat and spring barley yields in the eastern province of Moravia. Regression analysis of drought forcings discloses the importance of the North Atlantic Oscillation phase and the aggregate effect of anthropogenic forcing (driven largely by increases in CO2 concentration). Their magnitude of influence varies strongly with the type of drought index and season of the year. Other factors, such as solar irradiation and the Southern Oscillation phase make only minor contributions to drought variability. The effects of volcanic activity and the Atlantic Multidecadal Oscillation are even weaker and statistically insignificant.
Návaznosti
CZ.1.07/2.3.00/20.0248, interní kód MU |
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GAP209/11/0956, projekt VaV |
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GA13-04291S, projekt VaV |
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GA13-19831S, projekt VaV |
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