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