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
Note: variance is calculated using the followingformula: 100 * (planned [predicted] - actual) / planned [predicted]