Geoscience Reference
In-Depth Information
Fig. 2 Water temperatures along the longitudinal cross section of the lake
temperatures were measured in several points along the depth. In July and August,
thermal stratification in the lake was observed as well as surface temperature
variations. Temperature differences in deep verticals achieved in July and August
were in the range of 5-7
C, while thermal stratification disappeared during other
months. Variations of lake surface temperatures did not exceed 2-3
C with higher
temperatures close to the shore where the depths are smaller. Analysis shows that
average annual water temperature is 8.7
C, maximum 23.3
C and minimum is
0.0
C. In general, it can be stated that water temperatures in the lake follow air
temperatures (Majewski et al.
1988a
). Examples of water temperature distributions
along the longitudinal lake cross section in July and August 1973, 1974, and 1975
are shown in Fig.
2
.
5 Thermal Regime of the Lake Caused by the Discharge
of Cooling Water
The layout of the designed system of cooling water discharge on the lake is
presented in Fig.
3
. Cooling water is conveyed by means of surface channel along
the lake to its northern part. Here a dike is proposed across the lake, from which
cooling water will be uniformly distributed over the lake surface. Bottom intake of
cooling water is located in the southern part of the lake near the nuclear power
plant.
