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11.1. Water speeds and expenses
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11.1. Water speeds and expenses
The water speeds and areas of cross sections were measured at 20 posts (3 of which were additional). The data on water expenses, calculated according to the measurement figures, and the data - related to the 4 posts (the Dnipro river up stream Mohylyov town, the Dnipro river down stream Rechitza town, the Prypyat river down stream Mozyr town and the Dnipro river down stream Komarin town), where water expenses were calculated taking into account correlations between areas of water collection - are presented in the Table 11.1. Information on water expenses at boundary posts (the Table 11.2) fully corresponds to the analogous data, obtained by Ukrainian expedition.
If we compare the monitoring data of many years (the Table 11.3), we can see that, during the expedition period, for all the posts without exception, water expenses exceeded the water expenses of the calculation October (for calculations, we regarded a year of low water), and, for majority of posts, they were close to the mean data of a long term.
Table 11.1 Results of hydro-metric measurements in the Dnipro basin
|
No. |
River-post |
The place where the post is situated |
Date of measurements |
Expenses, m3/sec |
Cross- |
Average speed of stream, m/sec |
ANNOTATION |
|
1. |
Dnipro river |
border with Russia |
3.10.2000 |
67.2 |
163 |
0.41 |
|
|
2. |
Dnipro river, Orsha town |
4 km down stream Orsha town |
4.10.2000 |
70.4 |
215 |
0.33 |
|
|
3. |
Dnipro river, Mohylyov town |
up stream Mohylyov town |
- |
- |
298 |
- |
Expenses were calculated |
|
4. |
Dnipro river, Mohylyov town |
3 km down stream Mohylyov town |
6.10.2000 |
84.8 |
301 |
0.28 |
|
|
5. |
Dnipro river, Rechitza town |
2 km down stream Rechitza town |
- |
341. |
- |
- |
Expenses were calculated |
|
6. |
Dnipro river, Loeve town |
4.5 km down stream Loeve town |
13.10.2000 |
387. |
701 |
0.55 |
|
|
6à. |
Dnipro river, Loeve town |
4.5 km down stream Love town |
13.10.2000 |
400. |
703 |
0.56 |
The cross-section was measured with the help of sonic depth-finder |
|
7. |
Dnipro river, Komarin town |
8 km down stream Komarin town |
- |
405. |
- |
- |
Expenses were calculated |
|
8. |
Berezina river, Svetlogorsk town |
4 km down stream Svetlogorsk town |
8.10.2000 |
85.0 |
307 |
0.28 |
|
|
9. |
Svisloch river, Korolischevichi village |
down stream Minsk municipal aeration station |
2.10.2000 |
13.1 |
20.5 |
0.64 |
|
|
10. |
Sozh river, Krichev town |
3 km up stream Krichev town |
10.10.2000 |
35.1 |
99.3 |
0.35 |
|
|
11. |
Sozh river, Homel town |
25 km down stream Homel town |
15.10.2000 |
136. |
451 |
0.30 |
|
|
12. |
Iput river, Demyanki village |
6 km from the Belarus-Russia border |
12.10.2000 |
28.5 |
84.6 |
0.34 |
|
|
13. |
Prypyat river, Bolshie Dikovichi village |
6 km up stream the Lubansky Bridge post |
3.10.2000 |
54.5 |
188 |
0.29 |
|
|
13a. |
Prypyat river, Lubansky Bridge |
6 km up stream Pinsk town |
3.10.2000 |
55.6 |
192 |
0.29 |
|
|
14. |
Prypyat river, Tereben village |
11 km down stream Pinsk town |
3.10.2000 |
56.6 |
207 |
0.27 |
|
|
15. |
Prypyat river, Mozyr town |
up stream Mozyr town |
9.10.2000 |
287. |
512 |
0.56 |
|
|
16. |
Prypyat river, Mozyr town |
down stream Mozyr town |
- |
290. |
- |
- |
Expenses were calculated |
|
17. |
Prypyat river, Dovlyady village |
11 km from the Belarus-Ukraine border |
10.10.2000 |
305. |
548 |
0.556 |
|
|
18a. |
Prostyr river |
3 km from the Belarus-Ukraine border |
4.10.2000 |
23.4 |
70.9 |
0.33 |
|
|
18. |
Styr river, Lasitzk village |
15 km from the Belarus-Ukraine border |
4.10.2000 |
0.38 |
11.1 |
0.034 |
|
|
19. |
Goryn river, Rechitza town |
2 km from Belarus-Ukraine border, down stream Rechitza town |
5.10.2000 |
56.3 |
121 |
0.47 |
|
|
20. |
Stviga river, Korotichi village |
0.5 km down stream the Mostva river mouth |
6.10. 2000 |
3.26 |
11.64 |
0.28 |
|
|
21. |
Ubort river, Tartak village |
18 km from the Belarus-Ukraine border |
7.10. 2000 |
3.66 |
11.3 |
0.32 |
|
|
22. |
Lva river |
Koshary Olshanskie village |
4.10.2000 |
1.95 |
9.3 |
0.21 |
Additional post |
|
23. |
Slovechna river |
Skorodnoe village |
8.10.2000 |
1.1 |
5.8 |
0.19 |
Additional post |
Table 11.3 Actual data on water expenses of rivers at the measurement posts
|
Measurement Post |
Water Collection Area, km2 |
Distance from a river mouth, km |
The mean flow
calculated for Octobers of many years, |
Flow in October, 95%
of provision, |
Actual flow in October 2000 (on the date of measurements), m3/sec |
|
Dnipro river (border with Russia) |
16600 |
1653 |
67.2 |
42.8 |
67.2 |
|
Dnipro river, down stream Orsha town |
18000 |
1588 |
72.9 |
46.4 |
70.4 |
|
Dnipro river, down stream Mohylyov town |
21300 |
1470 |
89.3 |
56 |
84.8 |
|
Dnipro river, down stream Loeve town |
102000 |
1080 |
383 |
247 |
400 |
|
Sozh river, up stream Krichev town |
10200 |
412 |
30.9 |
19 |
35.1 |
|
Iput river, Demyanki village |
10100 |
32 |
29.5 |
15.1 |
28.5 |
|
Sozh river, down stream Homel town |
38900 |
92 |
118 |
65 |
136 |
|
Prypyat river, up stream the Lubansky Bridge post |
19700 |
528 |
41 |
20.6 |
54.5 |
|
Prypyat river, down stream Mozyr town |
101200 |
164 |
213 |
114 |
287 |
|
Prypyat river, Dovlyady village |
108000 |
76 |
220 |
123 |
305 |
|
Goryn river, Rechitza town |
27000 |
70 |
57.6 |
17.9 |
56.3 |
|
Stviga river (territory next to a border-line) |
4200 |
35 |
8.9 |
2.83 |
3.26 |
|
Ubort river, Tartak village |
3800 |
104 |
8.13 |
2.42 |
3.66 |
|
Svisloch river, down stream Minsk city |
- |
213 |
The routine changed because of controlled flow |
13.1 |
|
|
Berezina river, down stream Svetlogorsk town |
23300 |
71 |
102 |
69.7 |
85.0 |
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