Operative modes of the Charvak water reservoir. Comparison of planned and actual values for vegetation period 1997
Parametres |
April |
May |
June |
July |
August |
September |
For vegetation |
|||||||||||||||
I |
II |
III |
I |
II |
III |
I |
II |
III |
I |
II |
III |
I |
II |
III |
I |
II |
III |
|||||
Inflow |
forecast | m3/sec |
169.0 |
169.0 |
169.0 |
330.0 |
330.0 |
330.0 |
439.0 |
439.0 |
439.0 |
331.0 |
331.0 |
331.0 |
185.0 |
185.0 |
185.0 |
106.0 |
106.0 |
106.0 |
Mm3 |
4116.6 |
| actual | m3/sec |
135.2 |
188.4 |
352.6 |
432.8 |
283.2 |
401.4 |
552.5 |
463.5 |
492.5 |
413.4 |
337.9 |
278.8 |
207.9 |
192.2 |
167.2 |
139.1 |
120.5 |
107.4 |
Mm3 |
4623.4 |
|
| variance | % |
20.0 |
-11.5 |
-108.6 |
-31.2 |
14.2 |
-21.6 |
-25.9 |
-5.6 |
-12.2 |
-24.9 |
-2.1 |
15.8 |
-12.4 |
-3.9 |
9.6 |
-31.2 |
-13.7 |
-1.3 |
% |
-12.3 |
|
Mm3 |
29.2 |
12.4 |
-146.2 |
-235.0 |
-194.6 |
-262.4 |
-360.5 |
-381.6 |
-427.9 |
-499.0 |
-505.0 |
-455.4 |
-475.2 |
-481.4 |
-464.5 |
-493.1 |
-505.6 |
-506.8 |
Mm3 |
-506.8 |
||
Volume |
planned | Mm3 |
1225.2 |
1254.4 |
1263.7 |
1378.1 |
1450.1 |
1497.1 |
1590.2 |
1635.9 |
1657.3 |
1595.4 |
1569.8 |
1575.9 |
1507.0 |
1549.3 |
1509.1 |
1469.1 |
1476.0 |
1444.6 |
Mm3 |
|
| actual | Mm3 |
1018.0 |
1111.0 |
1388.0 |
1608.0 |
1703.0 |
1847.0 |
1882.0 |
1951.0 |
2002.0 |
2000.0 |
1932.0 |
1822.0 |
1691.0 |
1556.0 |
1434.0 |
1348.0 |
1326.0 |
1292.0 |
Mm3 |
||
| variance | % |
16.9 |
11.4 |
-9.8 |
-16.7 |
-17.4 |
-23.4 |
-18.3 |
-19.3 |
-20.8 |
-25.4 |
-23.1 |
-15.6 |
-12.2 |
-0.4 |
5.0 |
8.2 |
10.2 |
10.6 |
% |
||
Release |
planned | m3/sec |
120.0 |
135.0 |
158.0 |
197.0 |
246.0 |
280.0 |
330.0 |
385.0 |
413.0 |
401.0 |
359.0 |
323.0 |
263.0 |
214.0 |
181.0 |
151.0 |
143.0 |
133.0 |
Mm3 |
3897.0 |
| actual | m3/sec |
124.2 |
105.9 |
117.8 |
127.4 |
150.0 |
242.4 |
498.9 |
392.9 |
445.6 |
395.4 |
407.5 |
386.9 |
347.0 |
345.1 |
308.8 |
222.7 |
154.0 |
137.4 |
Mm3 |
4323.2 |
|
| variance | % |
-3.5 |
21.6 |
25.4 |
35.3 |
39.0 |
13.4 |
-51.2 |
-2.1 |
-7.9 |
1.4 |
-13.5 |
-19.8 |
-31.9 |
-61.3 |
-70.6 |
-47.5 |
-7.7 |
-3.3 |
% |
-10.9 |
|
Mm3 |
-3.6 |
21.5 |
56.2 |
116.4 |
199.3 |
235.1 |
89.2 |
82.3 |
54.2 |
59.0 |
17.1 |
-43.6 |
-116.2 |
-229.5 |
-351.0 |
-412.9 |
-422.4 |
-426.2 |
Mm3 |
-426.2 |
||
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] | |