566
R. B˘ atina¸ s et al.
Table 16.10 Characteristic volumes of the reservoirs from the Upper basin of Some¸ sul Mic river
(after S , erban 2007)
No.
Reservoir
Characteristic volumes (mil m 3 )
Total
Raw
Useful
Backup vol.
Dead
Mitigation
1.
Fântânele
244.69
207.59
186.93
10.17
10.50
37.00
2.
Tarni¸ ta
75.25
68.08
13.79
39.08
5.62
6.90
3.
Some¸ sul Cald
8.45
6.45
0.86
3.41
2.18
1.99
4.
Gil˘ au
4.10
2.90
0.80
1.60
0.50
1.21
5.
Some¸ sul Rece I
1.67
1.34
0.98
–
–
0.33
The values of the reservoirs morphometric features are decreasing from upstream
to downstream with their dimensions, as well as the influence that they exert on the
hydric and morphologic processes and phenomena from the middle and lower sectors
of the main course.
The characteristic volumes of reservoirs presented in Table 16.10, emphasize the
existing differences between the lakes and highlight the numerous functions that they
perform, as well as the existence of some processes that affect the storage capabilities
of the hydraulic agent.
The characteristic volumes provide information on the total and useful capacity
of reservoirs, as well as on the function of floods mitigation. The particularly low
values of the unusable volume, in comparison with the total volume, highlight an
accentuated stage of silting of that lake.
The functions of the improvements from the Upper basin of Some¸ sul Mic river are
multiple, often common to the four lakes—for example, the hydropower function.
There are, however, specific functions of each retention, according to the purpose
for which it was built [63].
Fântânele dam & lake has a complex function:
– energetic, respectively production of electricity in the M˘ aris , elu underground station;
– multi-annual and annual liquid flow regularization on the course of the Some¸ sul
Cald river;
– mitigation of flash flood waves on the Some¸ sul Cald river.
Tarnit , a dam & lake also has a complex function:
– energetic, respectively production of electricity in the power plant located at the
base of the dam;
– newer source for water supply of the very important network of settlements and
economic units located in the downstream and neighbour areas: the municipality
of Cluj-Napoca and its industrial units, older C˘ apus , and Aghires , mining interest
regions, all the localities from Somes , ul Mic Corridor (includes the Gherla and Dej
cities), the neighbour S˘ alaj county, using the pumping stations;
– annual liquid flow regularization on the course of the Some¸ sul Cald river;
– mitigation of flash flood waves originating from the related catchment areas.
R. B˘ atina¸ s et al.
Table 16.10 Characteristic volumes of the reservoirs from the Upper basin of Some¸ sul Mic river
(after S , erban 2007)
No.
Reservoir
Characteristic volumes (mil m 3 )
Total
Raw
Useful
Backup vol.
Dead
Mitigation
1.
Fântânele
244.69
207.59
186.93
10.17
10.50
37.00
2.
Tarni¸ ta
75.25
68.08
13.79
39.08
5.62
6.90
3.
Some¸ sul Cald
8.45
6.45
0.86
3.41
2.18
1.99
4.
Gil˘ au
4.10
2.90
0.80
1.60
0.50
1.21
5.
Some¸ sul Rece I
1.67
1.34
0.98
–
–
0.33
The values of the reservoirs morphometric features are decreasing from upstream
to downstream with their dimensions, as well as the influence that they exert on the
hydric and morphologic processes and phenomena from the middle and lower sectors
of the main course.
The characteristic volumes of reservoirs presented in Table 16.10, emphasize the
existing differences between the lakes and highlight the numerous functions that they
perform, as well as the existence of some processes that affect the storage capabilities
of the hydraulic agent.
The characteristic volumes provide information on the total and useful capacity
of reservoirs, as well as on the function of floods mitigation. The particularly low
values of the unusable volume, in comparison with the total volume, highlight an
accentuated stage of silting of that lake.
The functions of the improvements from the Upper basin of Some¸ sul Mic river are
multiple, often common to the four lakes—for example, the hydropower function.
There are, however, specific functions of each retention, according to the purpose
for which it was built [63].
Fântânele dam & lake has a complex function:
– energetic, respectively production of electricity in the M˘ aris , elu underground station;
– multi-annual and annual liquid flow regularization on the course of the Some¸ sul
Cald river;
– mitigation of flash flood waves on the Some¸ sul Cald river.
Tarnit , a dam & lake also has a complex function:
– energetic, respectively production of electricity in the power plant located at the
base of the dam;
– newer source for water supply of the very important network of settlements and
economic units located in the downstream and neighbour areas: the municipality
of Cluj-Napoca and its industrial units, older C˘ apus , and Aghires , mining interest
regions, all the localities from Somes , ul Mic Corridor (includes the Gherla and Dej
cities), the neighbour S˘ alaj county, using the pumping stations;
– annual liquid flow regularization on the course of the Some¸ sul Cald river;
– mitigation of flash flood waves originating from the related catchment areas.