Operative modes of the Toktogul water reservoir. Comparison of planned and actual values for vegetation period 1993

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
264.0
264.0
264.0
571.0
571.0
571.0
897.0
897.0
897.0
784.0
784.0
784.0
543.0
543.0
543.0
300.0
300.0
300.0
Mm3
8870.5
actual
m3/sec
215.0
309.8
544.6
572.7
417.7
797.6
1033.9
1339.0
1419.0
1406.4
847.3
737.0
576.3
443.3
401.5
387.3
331.5
294.0
Mm3
10599.2
variance
%
18.6
-17.3
-106.3
-0.3
26.8
-39.7
-15.3
-49.3
-58.2
-79.4
-8.1
6.0
-6.1
18.4
26.1
-29.1
-10.5
2.0
%
-19.5
Mm3
42.3
2.8
-239.7
-241.1
-108.7
-324.1
-442.4
-824.3
-1275.3
-1813.0
-1867.7
-1823.0
-1851.8
-1765.7
-1631.2
-1706.7
-1733.9
-1728.7
Mm3
-1728.7
Volume
planned
Mm3
13834.4
13797.9
13790.8
14063.6
14294.9
14521.7
15085.7
15603.0
16083.2
16461.5
16815.7
17183.4
17281.1
17382.1
17532.3
17539.3
17546.3
17529.7
Mm3
actual
Mm3
11686.0
11724.0
12180.0
12534.0
12624.0
13026.0
13925.0
14941.0
15764.0
16740.0
17156.0
17536.0
17753.0
17840.0
17927.0
18055.0
18127.0
18110.0
Mm3
variance
%
15.5
15.0
11.7
10.9
11.7
10.3
7.7
4.2
2.0
-1.7
-2.0
-2.1
-2.7
-2.6
-2.3
-2.9
-3.3
-3.3
%
Release
planned
m3/sec
333.0
305.0
271.0
254.0
302.0
331.0
243.0
297.0
340.0
342.0
370.0
393.0
424.0
420.0
379.0
285.0
285.0
312.3
Mm3
5181.1
actual
m3/sec
388.6
267.1
228.7
190.9
268.2
289.0
157.4
272.0
307.3
322.3
305.2
333.9
367.5
360.9
317.6
243.7
256.9
312.3
Mm3
4565.0
variance
%
-16.7
12.4
15.6
24.8
11.2
12.7
35.2
8.4
9.6
5.8
17.5
15.0
13.3
14.1
16.2
14.5
9.9
0.0
%
11.9
Mm3
-48.0
-15.3
21.3
75.8
105.0
144.9
218.8
240.4
268.7
285.7
341.7
397.9
446.7
497.7
556.1
591.7
616.0
616.0
Mm3
616.0
Diagram of inflow and release in the Toktogul water reservoir
Diagram of volumes deviations in the Toktogul water reservoir
Note: variance is calculated using the followingformula: 100 * (planned [predicted] - actual) / planned [predicted]