Abstract

Woda - Środowisko - Obszary Wiejskie
Tom 5 zeszyt specjalny (14) (2005 r.)
Ewa JENDRZEJCZAK
ESTIMATING THE FREQUENCY OF SEMI-DROUGHT
AND EXTREMELY WET WEATHER IN MAY IN SELECTED LOCALITIES IN POLAND
Key words: semi-drought, classification of weather conditions
Summary
Frequency of semi-droughts and extremely wet weather events were analysed based on rainfall and mean air temperature
recorded in May from 1971 to 2000 in 16 meteorological stations. Weather classification used in the present study
showed that 30 % of all records pointed to the occurrence of semi-drought of various kind and intensity observed mainly
in Zielona Góra, Poznań, Wrocław and Toruń. Irrespective of the region, similar values of meteorological elements
characterized the weather during semi-drought events. Extremely wet months constituted about 6 % of records. In May
extremely wet weather was observed in different regions of the country, most frequently in seaside (Koszalin) and
southern part of Poland (Rzeszów, Katowice and Kraków).