Zmienność częstości i charakteru przebiegu zjawisk lodowych na rzece Parsęcie w aspekcie zmian klimatycznych
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Date
2017
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Wydawnictwo Poznańskiego Towarzystwa Przyjaciół Nauk
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Abstract
The article presents the frequency, occurrence and variability of ice phenomena on the Parsęta River
from 1951–2010. The variability of the course and nature of the ice phenomena has been described against
the background of the changing climate, with particular emphasis on the variability of the air temperature and
the thermodynamics of winter periods. In order to better visualize the variability of the thermals of the individual
winter seasons, climatic classification of the individual periods was carried out and the anomalies were
determined on the basis of it. The work also includes the course of atmospheric circulation, which determines
the course of the air temperature on the river basin. For this purpose, the Jones index has been used, which is
calculated to represent the North Atlantic Oscillation (NAO). Based on the research, the shortest and longest
periods of ice phenomena have been distinguished and their formation has been determined, depending on the
variability of air temperature and water. The division of the ice phenomena into individual types and forms is
also included in this article.
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Keywords
ice phenomena, the Parsęta River, variability of air temperature, river ice, North Atlantic oscillation (NAO)
Citation
Badania Fizjograficzne, Seria A, Tom 68, 2017, s. 79-98