VARIABILITY OF ICE PHENOMENA ON THE BUG RIVER (1903–2012)

The article describes an analysis of observations of ice phenomena on the Bug River, conducted between 1903–1960 and 2001–2012, on representative gauge section – Dorohusk, Włodawa, Frankopol and Włodawa. It has been concluded that the length of the period of ice phenomena has decreased. Fluctuations of duration of ice phenomena and ice cover which are related to differentiation of temperature conditions in winter season, are well-marked. The article is an introduction to the subject of ice phenomena on the rivers in eastern part of Poland, as well as, the cause to pursue further research related to the ice cover of rivers and to explore the processes shaping them