Operative modes of the Chardara water reservoir. Comparison of planned and actual values for non-vegetation period 1996-1997
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 |
475.3 |
524.8 |
536.6 |
568.7 |
860.7 |
905.5 |
792.9 |
891.2 |
798.6 |
900.6 |
920.4 |
966.2 |
1016.5 |
1048.3 |
966.6 |
701.6 |
508.9 |
508.9 |
Mm3 |
12078.8 |
| actual | m3/sec |
279.2 |
431.9 |
537.5 |
476.7 |
537.1 |
590.8 |
662.6 |
707.7 |
1008.9 |
1064.1 |
864.7 |
894.2 |
1045.2 |
1067.5 |
902.9 |
960.6 |
1150.8 |
830.4 |
Mm3 |
12233.5 |
|
| variance | % |
41.3 |
17.7 |
-0.2 |
16.2 |
37.6 |
34.8 |
16.4 |
20.6 |
-26.3 |
-18.1 |
6.1 |
7.5 |
-2.8 |
-1.8 |
6.6 |
-36.9 |
-126.1 |
-63.2 |
% |
-1.3 |
|
Mm3 |
169.5 |
249.7 |
248.9 |
328.5 |
608.1 |
880.0 |
992.6 |
1151.1 |
951.2 |
810.0 |
858.1 |
926.6 |
901.7 |
885.1 |
929.2 |
705.4 |
150.8 |
-154.7 |
Mm3 |
-154.7 |
||
| Volume | planned | Mm3 |
1075.7 |
1203.5 |
1317.1 |
1418.9 |
1753.8 |
2119.7 |
2384.9 |
2731.5 |
3021.0 |
3321.8 |
3625.0 |
3971.6 |
4326.3 |
4727.4 |
4977.8 |
4937.3 |
4936.8 |
4936.2 |
Mm3 |
|
| actual | Mm3 |
836.0 |
915.0 |
1027.0 |
1046.0 |
1187.0 |
1411.0 |
1708.0 |
2029.0 |
2594.0 |
3220.0 |
3695.0 |
4257.0 |
4763.0 |
4951.0 |
5045.0 |
5210.0 |
5270.0 |
5249.0 |
Mm3 |
||
| variance | % |
22.3 |
24.0 |
22.0 |
26.3 |
32.3 |
33.4 |
28.4 |
25.7 |
14.1 |
3.1 |
-1.9 |
-7.2 |
-10.1 |
-4.7 |
-1.4 |
-5.5 |
-6.7 |
-6.3 |
% |
||
| Release | planned | m3/sec |
329.0 |
360.0 |
400.0 |
436.0 |
458.0 |
467.0 |
476.0 |
480.0 |
484.0 |
547.0 |
564.0 |
596.0 |
600.0 |
578.0 |
524.0 |
489.0 |
462.0 |
449.0 |
Mm3 |
7592.1 |
| actual | m3/sec |
266.3 |
392.0 |
477.3 |
500.0 |
460.0 |
384.0 |
360.0 |
360.0 |
360.0 |
360.0 |
360.0 |
360.0 |
357.7 |
360.0 |
362.5 |
429.0 |
680.0 |
845.5 |
Mm3 |
6744.4 |
|
| variance | % |
19.1 |
-8.9 |
-19.3 |
-14.7 |
-0.4 |
17.8 |
24.4 |
25.0 |
25.6 |
34.2 |
36.2 |
39.6 |
40.4 |
37.7 |
30.8 |
12.3 |
-47.2 |
-88.3 |
% |
11.2 |
|
Mm3 |
54.2 |
26.5 |
-46.9 |
-102.2 |
-103.9 |
-32.2 |
68.0 |
171.7 |
289.5 |
451.1 |
627.4 |
851.6 |
1061.0 |
1249.3 |
1361.0 |
1412.8 |
1224.5 |
847.7 |
Mm3 |
847.7 |
||
Diagram of inflow and release in the Chardara water reservoir |
Diagram of volumes deviations in the Chardara water reservoir |
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| Note: variance is calculated using the followingformula: 100 * (planned [predicted] - actual) / planned [predicted] | |