Operative modes of the Toktogul water reservoir. Comparison of planned and actual values for vegetation period 1996

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
322.0
322.0
322.0
694.0
694.0
694.0
1090.0
1090.0
1090.0
951.0
951.0
951.0
659.0
659.0
659.0
365.0
365.0
365.0
Mm3
10777.0
actual
m3/sec
160.8
209.1
402.4
288.8
335.5
742.8
775.8
1319.1
1245.8
1129.3
1048.4
995.6
918.9
663.7
383.8
348.4
289.9
348.0
Mm3
10211.1
variance
%
50.1
35.1
-25.0
58.4
51.7
-7.0
28.8
-21.0
-14.3
-18.7
-10.2
-4.7
-39.4
-0.7
41.8
4.5
20.6
4.7
%
5.3
Mm3
139.3
236.8
167.4
517.4
827.2
780.8
1052.3
854.3
719.7
565.7
481.5
439.1
214.5
210.5
472.0
486.3
551.2
565.9
Mm3
565.9
Volume
planned
Mm3
14638.1
14662.2
14623.1
14829.4
14941.4
14978.2
15257.0
15409.7
15527.0
15554.6
15620.2
15776.0
15752.6
15801.0
15932.1
15889.9
15895.2
15951.4
Mm3
actual
Mm3
10166.0
10097.0
10398.0
10517.0
10665.0
11041.0
11268.0
12198.0
12771.0
13415.0
13969.0
14368.0
14863.0
14864.0
14912.0
15014.0
15121.0
15187.0
Mm3
variance
%
30.6
31.1
28.9
29.1
28.6
26.3
26.1
20.8
17.7
13.8
10.6
8.9
5.6
5.9
6.4
5.5
4.9
4.8
%
Release
planned
m3/sec
257.0
293.0
366.0
454.0
563.0
654.0
766.0
912.0
953.0
915.0
871.0
783.0
680.0
597.0
515.0
407.0
352.0
293.0
Mm3
9353.8
actual
m3/sec
524.0
304.1
152.7
141.4
194.6
313.0
527.3
638.9
610.4
513.3
527.0
530.2
557.7
534.2
349.7
223.8
167.3
270.1
Mm3
6219.9
variance
%
-103.9
-3.8
58.3
68.9
65.4
52.1
31.2
29.9
35.9
43.9
39.5
32.3
18.0
10.5
32.1
45.0
52.5
7.8
%
33.5
Mm3
-230.7
-240.3
-56.0
214.1
532.4
856.5
1062.7
1298.7
1594.7
1941.8
2239.0
2479.2
2584.9
2639.2
2796.2
2954.5
3114.1
3133.9
Mm3
3133.9
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]