Journal
WATER
Volume 14, Issue 15, Pages -Publisher
MDPI
DOI: 10.3390/w14152360
Keywords
ice phenomena; ice cover; snow cover; cryology; mountain lakes; Tatra Mountains
Categories
Funding
- University of Silesia in Katowice (Poland)-Institute of Earth Sciences [WNP/INoZ/2020_ZB25]
- Institute of Social and Economic Geography and Spatial Management
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This study investigated the vertical and horizontal variation in the ice cover of mountain lakes in the temperate climate zone. The research focused on four lakes located in the Tatra National Park in the Tatra Mountains. The study found that besides negative air temperature, the thickness and spatial variability of the snow overlying the ice were significant factors affecting the magnitude of variation in lake ice thickness.
Vertical and horizontal variation in the ice cover of mountain lakes in the temperate climate zone has not been thoroughly studied. The study concerned ice phenomena in four lakes located in the Tatra National Park in the Tatra Mountains (the Czarny Staw Gasienicowy, Czarny Staw pod Rysami, Morskie Oko, and Smreczynski Staw). The research, which was conducted in the 2018/2019 winter season, included an analysis of variability in atmospheric conditions, an analysis of presence of ice phenomena on satellite images, field work (measurements of ice layer and of snow and slush layer thickness were conducted at a total of 151 sites), and statistical analyses. It was determined that negative air temperature was just one factor among those that determined the maximum thickness of the ice forming on lakes in high mountains. It was found that in addition to ambient thermal conditions, a major factor affecting the magnitude of variation in lake ice thickness was the thickness of the snow overlying the ice and its spatial variability. Thicker ice cover tended to form in areas where a thick layer of snow was deposited. The decisive factor that contributed to a significant variation in ice thickness between lakes was the uneven accretion of snow ice from above. The maximum ice thickness values modeled using Stefan's formula were significantly underestimated (accounting for 38-61% of the ice thickness measured) relative to the highest ice thickness values found empirically at the end of the winter season. Study results fill a gap in our knowledge and methodology related to vertical and horizontal variation in the ice cover of mountain lakes; they also have significant applications, indicating the risk of winter use of water bodies with different ice cover structure, thickness, and extent.
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