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Seasonal variability of thermal regime in a shallow ice covered lake

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Author

Summary, in English

A systematic study was conducted over six years (1994-1999) on a shallow ice covered lake in the Russian Republic of Karelia with the aim of developing better understanding of some physical processes occurring in shallow ice-covered lakes. The average ice-covered period was 182 days while the longest ice-covered period was 193 days. The average lake water temperature at ice formation was 0.5-10degreesC, while the average water temperature just before ice break-up was close to 4degreesC. The heat flux from water to ice was low during early winter but could increase above 5 Wm-2 (daily average) during the last month before ice break-up. The heat flux from sediment to water was the main source of heat to the water body during early to mid winter being about 2-6 W.m-2 during early winter but decreasing to about 1-2 Wm-2 during early spring.

Publishing year

2003

Language

English

Pages

107-124

Publication/Series

Nordic Hydrology

Volume

34

Issue

1-2

Document type

Journal article

Topic

  • Water Engineering

Status

Published

ISBN/ISSN/Other

  • ISSN: 0029-1277