Trends in precipitation variability: Prague (the Czech Republic)

L. Bodri, V. Cermak, M. Kresl

Research output: Contribution to journalArticle

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Abstract

Variability in precipitation at scales from 1 to 10 days was investigated with the use of the time series measured at Prague-Sporilov (the Czech Republic) between 1994 and 2001. Variability was detected by the method of absolute difference in precipitation between two adjacent discrete time periods. The results indicated a general increase in precipitation variability at all investigated scales within the 8-yr observational period. The variability patterns also showed quasi-seasonal variations. The summer wetter season proved to be the most variable. The analysis was accomplished by the investigations of precipitation variability at a monthly scale based on a century-long historical time record. On a longer time perspective, precipitation variability exhibits a general increase interrupted by quasi-decadal oscillations. The range of quasi-decadal variability has become more pronounced after about 1950, the fact that hints the possibility of further intensification of the hydrologic cycle. An obtained significant correlation between the North Atlantic Oscillation (NAO) activity and precipitation variability implies that the NAO may account for a large fraction of precipitation variability. Higher NAO-index values tend to be associated with low variability. The variability investigations may have a certain implication for climate change assessments both at the local scales as well as associated with the build-up of greenhouse gases.

Original languageEnglish
Pages (from-to)151-170
Number of pages20
JournalClimatic Change
Volume72
Issue number1-2
DOIs
Publication statusPublished - Sep 2005

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North Atlantic Oscillation
Greenhouse gases
Climate change
Time series
wet season
greenhouse gas
seasonal variation
oscillation
time series
climate change
summer
trend

ASJC Scopus subject areas

  • Atmospheric Science
  • Environmental Science(all)
  • Environmental Chemistry
  • Global and Planetary Change

Cite this

Trends in precipitation variability : Prague (the Czech Republic). / Bodri, L.; Cermak, V.; Kresl, M.

In: Climatic Change, Vol. 72, No. 1-2, 09.2005, p. 151-170.

Research output: Contribution to journalArticle

Bodri, L. ; Cermak, V. ; Kresl, M. / Trends in precipitation variability : Prague (the Czech Republic). In: Climatic Change. 2005 ; Vol. 72, No. 1-2. pp. 151-170.
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