Lake Water Body in the Ice Season - Freezing of Lakes and the Evolution of their Ice Cover - page 239

Deep station

2.5

15

2

*

*

*

Surface

*

10

1.5

1

5

0.5

Bottom

0 0

0 30 60 90 120 150

Ice period duration (days)

Shallow station

15

* *

* *

Surface

10

5

Bottom

0

0 30 60 90 120 150

Ice period duration (days)

Fig. 7.19 Evolution of the DO concentration and of the anoxic zone thickness H in Lake

Vendyurskoe. Stars and squares represent the DO concentrations measured under the ice cover and
in the near-bottom water, respectively, and triangles mark the measured thickness of the anoxic zone
(Prepared from Golosov et al. 2006)