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vol. 11, nr. 3 (2008)
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Thermal-precipitation regionalisation of poland during the global warming period
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Agnieszka Ziernicka-Wojtaszek, Tadeusz Zawora
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Department of Meteorology and Agriculture Climatology, Agricultural University, Al. Mickiewicza 24/28, 30-059 Kraków |
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vol. 11 (2008), nr. 3,
pp. 807-817
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abstract:
This paper presents thermal-precipitation regionalisation for Poland employing the
Shmuck method. The regionalisation has been carried out for three separate periods: 1961-1990,
1971-2000 and 1991-2000. The authors distinguished 3 thermal regions based on temperature sums
≥10.0ºC: very warm >3000, warm 2750-3000 and temperate warm <2750, as well as 4 precipitation
regions based on the so-called precipitation index (J): very dry <50, dry 50-100, temperate humid
100-300 and humid >300. Comparison of the above-mentioned regionalisations clearly indicates
a gradual decrease in the surface area for the temperate warm region that includes both Baltic Seashore
and Baltic Lakeland districts. This decrease for subsequent time periods was as follows: 34%,
28% and 9%. During the last decade, a very warm region has appeared in southwestern Poland. This
region had temperatures sums in the range 3000-3200ºC and possessed various humidity levels. The
increase of the areas of the dry and very dry regions with precipitation index values <100 during the
three time periods was statistically insignificant.
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keywords:
temperature, precipitation, regionalisation, Poland
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original in:
Polish
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