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
Note: variance is calculated using the followingformula: 100 * (planned [predicted] - actual) / planned [predicted]