1. ICE PHENOMENA IN ANTHROPOGENIC WATER BODIES IN GLIWICE (SILESIAN UPLAND, SOUTHERN POLAND).
- Author
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Gorski, Kamil, Machowski, Robert, and Rzetala, Mariusz
- Subjects
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ICE sheets , *BODIES of water , *GLACIAL melting , *ICE jams (Geology) - Abstract
The aim of the study was to evaluate ice phenomena in four anthropogenic water bodies situated in the south-eastern part of Gliwice during the 2010-2011 winter season. The study consisted of systematic measurements that were carried out daily during freezing and thawing and every two or three days after the ice cover had formed. The first ice phenomena in the water bodies analysed in the form of a thin layer of ice in the coastal zone appeared on 26 November 2010. The destruction of the compact ice cover began with the onset of positive temperatures in March. The rate of its disappearance varied, and the last ice phenomena in the water bodies analysed were observed on 17 March 2011. The duration of ice phenomena in these water bodies was similar. The longest duration (110 days) was observed in the Cegielnia water body, while the shortest one (107 days) in the Żwirownia one. The maximum thickness of the ice cover exhibited slightly greater variation (19.0 cm - 21.5 cm). The observations conducted make it possible to claim that the ice regime in the water bodies studied is quasi-natural and individual phases of the seasonal freezing cycle result from local, mostly natural conditions. The existing differences related to the freezing and thawing of the water surface stemmed mainly from morphometric differences between the limnic water bodies studied. [ABSTRACT FROM AUTHOR]
- Published
- 2013