Hypolimnetic heating in Castle Lake. California

Publication Type  Journal Article
Year of Publication  1965
Authors  BACHMANN, R.W.; GOLDMAN, C.R.
Journal Title  LIMNOL OCEANOGR
Journal Date  1965
Volume  10
Issue  (2)
Pagination  233-239
Abstract  

A 5-year series of summer temperature profiles was used to calculate the coefficient of eddy conductivity in a small (20.1 ha) mountain lake. The relatively high value obtained (6.22 x 10-2 g cm-1 sec-1) prompted us to evaluate the role of direct solar heating in the hypolimnion using data on total daily solar radiation, the spectral curve of sunlight, and the light transmission properties of the lake water. It was found that an estimated 65-85% of the heating in the upper hypolimnion could be accounted for by direct solar heating. It is postulated that in Castle Lake direct solar heating rather than turbulent mixing is responsible for the shape of the hypolimnetic thermal profile. || ABSTRACT AUTHORS: Authors

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