Operative modes of the Charvak water reservoir. Comparison of planned and actual values for non-vegetation period 1997-1998
Parametres |
October |
November |
December |
January |
February |
March |
for non-vegetation |
|||||||||||||||
I |
II |
III |
I |
II |
III |
I |
II |
III |
I |
II |
III |
I |
II |
III |
I |
II |
III |
|||||
| Inflow | forecast | m3/sec |
85.0 |
85.0 |
85.0 |
75.0 |
75.0 |
75.0 |
63.0 |
63.0 |
63.0 |
56.0 |
56.0 |
56.0 |
54.0 |
54.0 |
54.0 |
70.0 |
70.0 |
70.0 |
Mm3 |
1058.9 |
| actual | m3/sec |
96.9 |
85.2 |
78.5 |
77.9 |
73.1 |
68.2 |
63.0 |
63.3 |
61.1 |
59.6 |
58.8 |
56.3 |
58.7 |
62.2 |
60.5 |
60.5 |
70.4 |
107.5 |
Mm3 |
1105.7 |
|
| variance | % |
-14.0 |
-0.2 |
7.7 |
-3.8 |
2.6 |
9.1 |
0.0 |
-0.5 |
3.0 |
-6.4 |
-5.0 |
-0.5 |
-8.7 |
-15.2 |
-12.0 |
13.6 |
-0.6 |
-53.5 |
% |
-4.4 |
|
Mm3 |
-10.3 |
-10.5 |
-4.3 |
-6.7 |
-5.1 |
0.8 |
0.8 |
0.6 |
2.4 |
-0.7 |
-3.2 |
-3.4 |
-7.5 |
-14.6 |
-19.1 |
-10.9 |
-11.2 |
-46.8 |
Mm3 |
-46.8 |
||
| Volume | planned | Mm3 |
1354.2 |
1351.7 |
1350.9 |
1343.3 |
1336.4 |
1331.9 |
1321.5 |
1311.7 |
1301.5 |
1288.3 |
1275.7 |
1261.6 |
1248.0 |
1234.7 |
1222.3 |
1214.0 |
1204.5 |
1192.6 |
Mm3 |
|
| actual | Mm3 |
1214.0 |
1140.0 |
1072.0 |
1051.0 |
1016.0 |
990.0 |
973.0 |
960.0 |
937.0 |
917.0 |
900.0 |
874.0 |
871.0 |
846.6 |
818.0 |
751.0 |
648.0 |
551.0 |
Mm3 |
||
| variance | % |
10.4 |
15.7 |
20.6 |
21.8 |
24.0 |
25.7 |
26.4 |
26.8 |
28.0 |
28.8 |
29.5 |
30.7 |
30.2 |
31.4 |
33.1 |
38.1 |
46.2 |
53.8 |
% |
||
| Release | planned | m3/sec |
84.6 |
86.7 |
84.6 |
82.7 |
82.0 |
79.1 |
74.8 |
74.2 |
73.5 |
70.6 |
70.0 |
70.3 |
69.3 |
69.0 |
71.6 |
79.4 |
81.0 |
82.4 |
Mm3 |
1211.8 |
| actual | m3/sec |
177.9 |
168.7 |
149.2 |
103.7 |
107.7 |
90.8 |
78.4 |
77.8 |
80.1 |
81.8 |
74.2 |
76.9 |
68.0 |
87.4 |
86.6 |
123.5 |
186.4 |
229.5 |
Mm3 |
1801.4 |
|
| variance | % |
-110.3 |
-94.6 |
-76.3 |
-25.4 |
-31.3 |
-14.8 |
-4.8 |
-4.9 |
-9.0 |
-15.9 |
-6.0 |
-9.4 |
1.9 |
-26.7 |
-21.0 |
-55.5 |
-130.1 |
-178.6 |
% |
-48.7 |
|
Mm3 |
-80.6 |
-151.5 |
-212.8 |
-231.0 |
-253.2 |
-263.3 |
-266.4 |
-269.5 |
-275.8 |
-285.5 |
-289.1 |
-295.4 |
-294.3 |
-310.2 |
-320.6 |
-358.7 |
-449.7 |
-589.6 |
Mm3 |
-589.6 |
||
Diagram of inflow and release in the Charvak water reservoir |
Diagram of volumes deviations in the Charvak water reservoir |
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| Note: variance is calculated using the followingformula: 100 * (planned [predicted] - actual) / planned [predicted] | |