Operative modes of the Toktogul water reservoir. Comparison of planned and actual values for vegetation period 1995
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 |
283.0 |
283.0 |
283.0 |
612.0 |
612.0 |
612.0 |
961.0 |
961.0 |
961.0 |
683.0 |
683.0 |
683.0 |
473.0 |
473.0 |
473.0 |
263.0 |
263.0 |
263.0 |
Mm3 |
8641.6 |
| actual | m3/sec |
297.1 |
230.9 |
264.8 |
482.5 |
755.3 |
441.3 |
490.8 |
698.5 |
768.0 |
933.7 |
820.5 |
669.9 |
556.9 |
498.0 |
465.8 |
304.0 |
272.0 |
225.0 |
Mm3 |
8063.5 |
|
| variance | % |
-5.0 |
18.4 |
6.4 |
21.2 |
-23.4 |
27.9 |
48.9 |
27.3 |
20.1 |
-36.7 |
-20.1 |
1.9 |
-17.7 |
-5.3 |
1.5 |
-15.6 |
-3.4 |
14.4 |
% |
6.7 |
|
Mm3 |
-12.2 |
32.8 |
48.6 |
160.4 |
36.6 |
198.9 |
605.1 |
831.9 |
998.7 |
782.1 |
663.3 |
675.7 |
603.2 |
581.6 |
588.5 |
553.0 |
545.3 |
578.1 |
Mm3 |
578.1 |
||
Volume |
planned | Mm3 |
15594.0 |
15529.9 |
15501.2 |
15756.7 |
15991.4 |
16182.2 |
16562.1 |
16860.8 |
17074.9 |
16943.5 |
16750.7 |
16530.4 |
16310.1 |
16341.2 |
16507.5 |
16521.4 |
16529.3 |
16539.7 |
Mm3 |
|
| actual | Mm3 |
14072.0 |
13878.0 |
13880.0 |
14227.0 |
14620.0 |
14736.0 |
14917.0 |
15214.0 |
15390.0 |
15548.0 |
15550.0 |
15308.0 |
15212.0 |
15350.0 |
15611.0 |
15711.0 |
15752.0 |
15770.0 |
Mm3 |
||
| variance | % |
9.8 |
10.6 |
10.5 |
9.7 |
8.6 |
8.9 |
9.9 |
9.8 |
9.9 |
8.2 |
7.2 |
7.4 |
6.7 |
6.1 |
5.4 |
4.9 |
4.7 |
4.7 |
% |
||
Release |
planned | m3/sec |
386.0 |
356.0 |
315.0 |
315.0 |
339.0 |
410.0 |
520.0 |
614.0 |
712.0 |
831.0 |
902.0 |
910.7 |
722.0 |
431.0 |
292.0 |
240.0 |
247.0 |
244.0 |
Mm3 |
7731.1 |
| actual | m3/sec |
425.8 |
386.5 |
262.0 |
192.8 |
210.9 |
272.9 |
270.8 |
301.8 |
598.0 |
726.7 |
779.6 |
910.7 |
680.7 |
356.1 |
207.3 |
164.5 |
198.4 |
193.2 |
Mm3 |
6288.0 |
|
| variance | % |
-10.3 |
-8.6 |
16.8 |
38.8 |
37.8 |
33.4 |
47.9 |
50.8 |
16.0 |
12.6 |
13.6 |
0.0 |
5.7 |
17.4 |
29.0 |
31.5 |
19.7 |
20.8 |
% |
18.7 |
|
Mm3 |
-34.4 |
-60.7 |
-14.9 |
90.6 |
201.3 |
331.6 |
546.9 |
816.7 |
915.1 |
1005.3 |
1111.0 |
1111.0 |
1146.7 |
1211.4 |
1291.9 |
1357.2 |
1399.2 |
1443.1 |
Mm3 |
1443.1 |
||
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] | |