The effect of morphometric characteristics and geographic zonality on thermal stratification of lakes

Long-term data (1945-1989) collected during regular observations of water temperature on a network of Roshydromet stations in different types of water bodies in Northwestern European Russia are generalized. A number of mathematical expressions, which are relatively simple and acceptable for wide cir...

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Bibliographic Details
Published in:Water resources 2008-03, Vol.35 (2), p.191-198
Main Authors: Pal'shin, N I, Efremova, T V, Potakhin, M S
Format: Article
Language:English
Subjects:
Epilimnion
Geography
Lakes
Morphology
Seasonal variations
Studies
Temperature
Thermal stratification
Thermocline
Water depth
Water temperature
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Summary:Long-term data (1945-1989) collected during regular observations of water temperature on a network of Roshydromet stations in different types of water bodies in Northwestern European Russia are generalized. A number of mathematical expressions, which are relatively simple and acceptable for wide circles of researchers, are proposed for the assessment of the thermal state of water bodies. Empirical dependences of the thickness of epilimnion, the depth to thermocline, the type of thermal stratification, seasonal variations in the temperature of water surface, and individual characteristics of the "biological summer" on various geographic factors are established. Elements of thermal regime are calculated for the database of ecological-geographical typification of Karelian water bodies. (PUBLICATION ABSTRACT)
ISSN:0097-8078
1608-344X
DOI:10.1007/s11268-008-2007-5