Operative modes of the Toktogul water reservoir. Comparison of planned and actual values for vegetation period 1994
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 |
354.0 |
354.0 |
354.0 |
765.0 |
765.0 |
765.0 |
1201.0 |
1201.0 |
1201.0 |
1049.0 |
1049.0 |
1049.0 |
727.0 |
727.0 |
727.0 |
402.0 |
402.0 |
402.0 |
Mm3 |
11878.4 |
| actual | m3/sec |
350.6 |
549.5 |
646.0 |
861.9 |
1051.7 |
1141.3 |
1465.7 |
1134.1 |
1351.0 |
1099.9 |
951.3 |
732.8 |
687.6 |
533.3 |
561.2 |
410.8 |
294.8 |
304.0 |
Mm3 |
12416.5 |
|
| variance | % |
1.0 |
-55.2 |
-82.5 |
-12.7 |
-37.5 |
-49.2 |
-22.0 |
5.6 |
-12.5 |
-4.9 |
9.3 |
30.1 |
5.4 |
26.6 |
22.8 |
-2.2 |
26.7 |
24.4 |
% |
-4.5 |
|
Mm3 |
2.9 |
-166.0 |
-418.3 |
-502.0 |
-749.7 |
-1107.3 |
-1336.0 |
-1278.2 |
-1407.8 |
-1451.8 |
-1367.4 |
-1066.9 |
-1032.8 |
-865.5 |
-707.9 |
-715.5 |
-622.9 |
-538.2 |
Mm3 |
-538.2 |
||
Volume |
planned | Mm3 |
14944.8 |
14996.5 |
15007.5 |
15305.3 |
15541.8 |
15719.3 |
16182.1 |
16552.6 |
16854.7 |
17043.0 |
17279.7 |
17622.7 |
17727.2 |
17892.2 |
18133.6 |
18129.4 |
18166.6 |
18254.9 |
Mm3 |
|
| actual | Mm3 |
13856.0 |
13518.0 |
13518.0 |
13911.0 |
14578.0 |
15313.0 |
16246.0 |
16912.0 |
17707.0 |
18378.0 |
18896.0 |
19075.0 |
19273.0 |
19393.0 |
19566.0 |
19509.0 |
19410.0 |
19339.0 |
Mm3 |
||
| variance | % |
7.3 |
9.9 |
9.9 |
9.1 |
6.2 |
2.6 |
-0.4 |
-2.2 |
-5.1 |
-7.8 |
-9.4 |
-8.2 |
-8.7 |
-8.4 |
-7.9 |
-7.6 |
-6.8 |
-5.9 |
% |
||
Release |
planned | m3/sec |
257.0 |
293.0 |
340.0 |
419.0 |
490.0 |
577.0 |
664.0 |
771.0 |
850.0 |
827.0 |
771.0 |
684.0 |
600.0 |
530.0 |
467.0 |
400.0 |
352.0 |
293.0 |
Mm3 |
8430.7 |
| actual | m3/sec |
597.4 |
673.7 |
449.2 |
392.9 |
343.6 |
297.1 |
383.7 |
367.2 |
421.5 |
369.4 |
411.1 |
471.4 |
469.0 |
390.5 |
366.5 |
476.8 |
404.5 |
390.4 |
Mm3 |
6730.0 |
|
| variance | % |
-132.5 |
-129.9 |
-32.1 |
6.2 |
29.9 |
48.5 |
42.2 |
52.4 |
50.4 |
55.3 |
46.7 |
31.1 |
21.8 |
26.3 |
21.5 |
-19.2 |
-14.9 |
-33.2 |
% |
20.2 |
|
Mm3 |
-294.1 |
-623.0 |
-717.4 |
-694.8 |
-568.3 |
-302.3 |
-60.1 |
288.7 |
659.0 |
1054.3 |
1365.3 |
1567.4 |
1680.6 |
1801.1 |
1896.7 |
1830.3 |
1784.9 |
1700.8 |
Mm3 |
1700.8 |
||
Diagram of inflow and release in the Toktogul water reservoir |
Diagram of volumes deviations in the Toktogul water reservoir |
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| Note: variance is calculated using the followingformula: 100 * (planned [predicted] - actual) / planned [predicted] | |