Operative modes of the Chardara water reservoir. Comparison of planned and actual values for vegetation period 1993
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 |
661.0 |
653.0 |
765.0 |
993.0 |
1418.0 |
1468.0 |
1471.0 |
1218.0 |
901.0 |
560.0 |
434.0 |
368.0 |
302.0 |
297.0 |
307.0 |
387.0 |
387.0 |
382.0 |
Mm3 |
11393.0 |
| actual | m3/sec |
818.9 |
553.3 |
738.0 |
911.8 |
1376.5 |
1330.3 |
1559.4 |
1161.3 |
825.3 |
511.3 |
369.7 |
296.1 |
241.8 |
243.2 |
238.2 |
337.7 |
336.1 |
332.9 |
Mm3 |
10686.0 |
|
| variance | % |
-23.9 |
15.3 |
3.5 |
8.2 |
2.9 |
9.4 |
-6.0 |
4.7 |
8.4 |
8.7 |
14.8 |
19.5 |
20.0 |
18.1 |
22.4 |
12.7 |
13.2 |
12.9 |
% |
6.2 |
|
Mm3 |
-136.4 |
-50.3 |
-26.9 |
43.2 |
79.1 |
210.0 |
133.6 |
182.6 |
248.0 |
290.1 |
345.7 |
414.0 |
466.1 |
512.6 |
577.9 |
620.6 |
664.6 |
707.0 |
Mm3 |
707.0 |
||
Volume |
planned | Mm3 |
4995.6 |
4978.3 |
4963.6 |
4982.6 |
5038.8 |
5183.8 |
5402.8 |
5461.5 |
5249.0 |
4719.4 |
4109.4 |
3429.9 |
2811.3 |
2297.2 |
1927.5 |
1727.9 |
1565.1 |
1403.5 |
Mm3 |
|
| actual | Mm3 |
5247.0 |
5332.0 |
5390.0 |
5390.0 |
5411.0 |
5397.0 |
5347.0 |
5189.0 |
4944.0 |
4539.0 |
3961.0 |
3256.0 |
2682.0 |
2189.0 |
1762.0 |
1629.0 |
1544.0 |
1455.0 |
Mm3 |
||
| variance | % |
-5.0 |
-7.1 |
-8.6 |
-8.2 |
-7.4 |
-4.1 |
1.0 |
5.0 |
5.8 |
3.8 |
3.6 |
5.1 |
4.6 |
4.7 |
8.6 |
5.7 |
1.3 |
-3.7 |
% |
||
Release |
planned | m3/sec |
821.0 |
614.0 |
740.0 |
906.0 |
1288.0 |
1260.0 |
1147.0 |
1053.0 |
991.0 |
963.0 |
930.0 |
897.0 |
892.0 |
793.0 |
651.0 |
590.0 |
552.0 |
547.0 |
Mm3 |
13751.3 |
| actual | m3/sec |
1143.5 |
435.1 |
740.0 |
850.0 |
1361.0 |
1330.0 |
1090.0 |
1098.0 |
1100.0 |
1025.0 |
950.0 |
950.0 |
1025.0 |
753.3 |
590.6 |
500.0 |
500.0 |
500.0 |
Mm3 |
14021.5 |
|
| variance | % |
-39.3 |
29.1 |
0.0 |
6.2 |
-5.7 |
-5.6 |
5.0 |
-4.3 |
-11.0 |
-6.4 |
-2.2 |
-5.9 |
-14.9 |
5.0 |
9.3 |
15.3 |
9.4 |
8.6 |
% |
-2.0 |
|
Mm3 |
-278.6 |
-124.1 |
-124.1 |
-75.7 |
-138.8 |
-205.3 |
-156.0 |
-194.9 |
-289.1 |
-342.7 |
-359.9 |
-410.3 |
-525.2 |
-490.9 |
-433.6 |
-355.8 |
-310.9 |
-270.3 |
Mm3 |
-270.3 |
||
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] | |