Operative modes of the Chardara water reservoir. Comparison of planned and actual values for vegetation period 1997
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 |
714.8 |
612.4 |
435.9 |
376.7 |
272.8 |
280.1 |
225.2 |
252.2 |
144.0 |
104.3 |
114.4 |
158.3 |
133.7 |
116.2 |
195.0 |
282.1 |
235.3 |
244.9 |
Mm3 |
4286.7 |
| actual | m3/sec |
516.5 |
295.1 |
248.7 |
415.1 |
470.2 |
288.9 |
406.6 |
315.0 |
235.3 |
154.5 |
126.5 |
122.3 |
131.5 |
124.2 |
125.6 |
133.3 |
136.7 |
135.9 |
Mm3 |
3832.3 |
|
| variance | % |
27.7 |
51.8 |
42.9 |
-10.2 |
-72.4 |
-3.2 |
-80.5 |
-24.9 |
-63.4 |
-48.2 |
-10.5 |
22.8 |
1.6 |
-6.9 |
35.6 |
52.7 |
41.9 |
44.5 |
% |
10.6 |
|
Mm3 |
171.3 |
445.5 |
607.2 |
574.0 |
403.4 |
395.0 |
238.3 |
184.0 |
105.2 |
61.7 |
51.3 |
85.6 |
87.5 |
80.5 |
146.5 |
275.1 |
360.3 |
454.4 |
Mm3 |
454.4 |
||
Volume |
planned | Mm3 |
5423.4 |
5520.5 |
5428.8 |
5227.2 |
4922.9 |
4598.4 |
4243.1 |
3900.2 |
3425.0 |
2880.9 |
2380.2 |
1950.0 |
1650.9 |
1441.1 |
1397.4 |
1468.2 |
1504.4 |
1550.1 |
Mm3 |
|
| actual | Mm3 |
5249.0 |
5243.0 |
5081.0 |
4857.0 |
4698.0 |
4330.0 |
4070.0 |
3788.0 |
3244.0 |
2650.0 |
2166.0 |
1617.0 |
1175.0 |
889.0 |
781.0 |
694.0 |
676.0 |
618.0 |
Mm3 |
||
| variance | % |
3.2 |
5.0 |
6.4 |
7.1 |
4.6 |
5.8 |
4.1 |
2.9 |
5.3 |
8.0 |
9.0 |
17.1 |
28.8 |
38.3 |
44.1 |
52.7 |
55.1 |
60.1 |
% |
||
Release |
planned | m3/sec |
360.0 |
441.0 |
500.0 |
545.0 |
560.0 |
566.0 |
566.0 |
552.0 |
538.0 |
524.0 |
484.0 |
425.0 |
354.0 |
260.0 |
196.0 |
172.0 |
170.0 |
170.0 |
Mm3 |
6481.5 |
| actual | m3/sec |
654.3 |
266.7 |
620.0 |
661.0 |
650.0 |
650.0 |
650.0 |
650.0 |
650.0 |
650.0 |
650.0 |
645.5 |
573.2 |
333.3 |
150.0 |
150.0 |
150.0 |
150.0 |
Mm3 |
7817.9 |
|
| variance | % |
-81.8 |
39.5 |
-24.0 |
-21.3 |
-16.1 |
-14.8 |
-14.8 |
-17.8 |
-20.8 |
-24.0 |
-34.3 |
-51.9 |
-61.9 |
-28.2 |
23.5 |
12.8 |
11.8 |
11.8 |
% |
-20.6 |
|
Mm3 |
-254.3 |
-103.7 |
-207.4 |
-307.6 |
-385.3 |
-465.2 |
-537.8 |
-622.4 |
-719.2 |
-828.1 |
-971.5 |
-1181.0 |
-1370.4 |
-1433.7 |
-1390.0 |
-1371.0 |
-1353.7 |
-1336.4 |
Mm3 |
-1336.4 |
||
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] | |