2015
Precipitation reconstruction for the Czech Lands, AD 1501–2010
DOBROVOLNÝ, Petr, Rudolf BRÁZDIL, Mirek TRNKA, Oldřich KOTYZA, Hubert VALÁŠEK et. al.Základní údaje
Originální název
Precipitation reconstruction for the Czech Lands, AD 1501–2010
Autoři
DOBROVOLNÝ, Petr (203 Česká republika, garant, domácí), Rudolf BRÁZDIL (203 Česká republika, domácí), Mirek TRNKA (203 Česká republika), Oldřich KOTYZA (203 Česká republika) a Hubert VALÁŠEK (203 Česká republika)
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/00216224:14310/15:00080636
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000347462400001
Klíčová slova anglicky
documentary evidence; instrumental data; precipitation; reconstruction; Czech Lands
Změněno: 8. 4. 2016 10:36, Ing. Andrea Mikešková
Anotace
V originále
This contribution employs documentary-based precipitation indices and long homogenised series of precipitation totals for quantitative reconstruction of seasonal and annual precipitation in the Czech Lands (now the Czech Republic) from AD 1501. Final calibration is based on linear regression using fully independent indices and data measured during the 1804–1854 overlap period, with subsequent variance scaling. Correlation analysis demonstrates that Czech documentary indices explain a significant amount of precipitation variability in all months and seasons of the entire overlapping period. Reconstruction results are best for annual values and for autumn (SON), for which proxy and target data share 36% of common variability. The coefficient of determination for summer (JJA) is 35%, for spring (MAM) 33%, but for winter (DJF) only 26%. Verification statistics (reduction of error, coefficient of efficiency) computed for early (1804–1829) and late (1830–1854) overlapping periods indicate acceptable reconstruction skill for precipitation indices in JJA and annual values. However, for the other seasons they failed in the early or in the late calibration period and this indicates possible chronological instability of reconstruction results in MAM, SON, and DJF seasons. The final reconstructions are complemented with uncertainty estimates. Reconstructed Czech precipitation series do not indicate long-term trends but reveal quite high inter-annual and inter-decadal variability. Smoothed reconstructed DJF and JJA precipitation totals show the highest values in the second part of the 16th century, while the driest 30-year period occurred during the 18th century in DJF, MAM, JJA, and in annual series. Direct comparisons with two other reconstructions (tree-ring-based for southern Moravia and gridded multiproxy for central Europe) show significant correlations for a substantial part of the common period, but also disclose several periods with loss of coherence.
Návaznosti
| 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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