Civil Engineering Reference
In-Depth Information
The two horizontal axes on the plot show the observed concentrations in Bq/
dm
3
(lower axis) and corresponding dimensionless concentrations relative to
initial values in the soil solution (upper axis).
After determination of the initial flow transport parameters during the
model calibration for a 10 year time period, the forecast vertical distributions of
the relative
137
Cs concentration for a 30 year period were obtained. The forecast
(30 year) and calibration (10 year) relative concentration plots against depth for
the above three representative types of areas are shown in Figure 5.2 (plots 1, 2,
(1)
(2)
Relative concentration
Relative concentration
0
0.2
0.4
0.6
0.8
0
0.2
0.4
0.6
0.8
0
0
10 y.
10 y.
30 y.
5
5
10
10
15
15
20
20
(3)
(4)
Relative concentration
Relative concentration
0
0.2
0.4
0.6
0.8
0
0.2
0.4
0.6
0.8
0
0
10 y.
5
5
30 y.
10 y.
10
10
30 y.
15
15
20
20
Figure 5.2
Calibration (10 year) and forecast (30 year) modeling plots of
137
Cs relative
concentration in groundwater (percent of initial surface concentration in liquid phase)
against depth at typical areas of the Dnieper basin: (1) territories of black soils and loess-
like loams; (2) territories of sod-podzolic soils and loamy-sandy compositions of the
unsaturated zone; (3) territories of floodplain terraces and sandur plains; (4) typical
depression of floodplain terraces and sandur plains.
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