In: Journal of Hydrology and Hydromechanics, vol. 68, no. 3
Mariusz Ptak - Mariusz Sojka - Bogumił Nowak
Detaily:
Rok, strany: 2020, 260 - 270
Jazyk: eng
Kľúčové slová:
Lakes; Water temperature; Air temperature; Ice cover; Climate change; Central Europe.
URL originálneho zdroja: http://www.ih.sav.sk/jhh
O článku:
Lake Śniardwy is the largest among more than 7000 Polish lakes. So far, it has not been a subject of detailed
investigations concerning long-term changes in water temperature or ice regime. A considerable change in thermal and
ice conditions has been observed in the period 1972–2019. Mean annual water temperature increased by 0.44°C dec–1 on
average, and was higher than an increase in air temperature (0.33°C dec–1). In the monthly cycle, the most dynamic
changes occurred in April (0.77°C dec–1). In the case of ice cover, it appeared increasingly later (5.3 days dec–1), and
disappeared earlier (3.0 days dec–1). The thickness of ice cover also decreased (2.4 cm dec–1). Statistical analysis by
means of a Pettitt test showed that the critical moment for the transformations of the thermal and ice regime was the end
of the 1980’s. In addition to the obvious relations with air temperature for both characteristics, it was evidenced that the
occurrence of ice cover depended on wind speed and snow cover. The recorded changes in the case of Lake Śniardwy are
considered unfavourable, and their consequences will affect the course of physical, chemical, and biological processes in
the largest lake in Poland.
Ako citovať:
ISO 690:
Ptak, M., Sojka, M., Nowak, B. 2020. Effect of climate warming on a change in thermal and ice conditions in the
largest lake in Poland – Lake Śniardwy. In Journal of Hydrology and Hydromechanics, vol. 68, no.3, pp. 260-270. 0042-790X (until 2019) . DOI: https://doi.org/10.2478/johh-2020-0024
APA:
Ptak, M., Sojka, M., Nowak, B. (2020). Effect of climate warming on a change in thermal and ice conditions in the
largest lake in Poland – Lake Śniardwy. Journal of Hydrology and Hydromechanics, 68(3), 260-270. 0042-790X (until 2019) . DOI: https://doi.org/10.2478/johh-2020-0024
O vydaní:
Vydavateľ: VEDA, Publishing House of the Slovak Academy of Sciences, Bratislava, Slovakia
Publikované: 15. 9. 2020