About BWFS of DBC - GRID

Joint usage of Belozerskaya water feeding system of the Dnipro-Bug Canal Vladimir Korneev Central Research Institute for Complex Use of Water Resources (CRICUWR), Minsk, Republic of Belarus

Improved management of shared water resources in the upper Pripyat basin (ENVSEC 000 62859) The project is looking for a practical solution for cross-border management water flow in the upper Pripyat between Ukraine and Belarus. The countries have been unable to find a mutually acceptable solution to the existing problems of water allocation on their own, whereas the existing mechanisms of cooperation failed to fully address it as well. A successful solution will both eliminate a source of potential disagreement over the use of water resources of the Pripyat basin, and strengthen the culture of a cross-border dialogue over similar cases between the involved countries.

Dniepro-Bug Canal (DBC)

Republic of Belarus

Beloozerskaya water feed system of DBC

Ukraine

The part of water flow from Ukrainian Upper Pripyat is discharging through Vyzhevskiyi floodgate, for water feeding of Dnepro-Bug Canal (DBC), which is situated at the territory of the Republic of Belarus, as a result in lowwater seasons Upper Pripyat could have the deficit of water to satisfy good ecological state of natural water body. On the another hand the pass of flood water of Upper Pripyat thought Vyzhevskiyi floodgate for reducing flood areas at the territory of Ukraine, have a negative influence upon technical state of Dnepro-Bug constructions, environment in the Republic of Belarus by way of flooding. Therefore the problem of water regime management of Upper Pripyat is a transboundary problem.

Project goals The objective of the project is to support sustainable management of shared water resources in the upper Pripyat basin. This will be done through developing, adopting, agreeing Operation Rules Beloozerskaya water-feed system of the Dniepro-Bug Canal

BY

UA

Lead agency and the project manager UNEP ROE / GRID-Arendal Nickolai Denisov Partner agencies UNDP, OSCE, UNECE Local partners Belarus Ministry of Transportation, including the Dnieper-Bug Waterway enterprise (Pinsk) Ukraine’s State Water Committee, including the Volyn Regional Department Ministries of Environment Protection (both countries) Research Institutes: Central Research Institute for Complex Use of Water Resources (CRICUWR, Minsk, Belarus), Institute of Water Economy (Kiev, Ukraine) Project duration

Start: June 2008 End: December 2009

For achievement of the goal, the joint belarussian-ukrainian complex hydrological and hydroecological investigations of Upper Pripyat and Beloozerskaya water feed system of DBC were organized and carried out (in Summer 2008 and in Spring 2009), water-balance calculations and anthropogenic assessment for different hydrological conditions and different operating modes of Vyzhevskiyi floodgate were carried out.

Cross section of the river Pripyat downstream of the BWFS 150.5

150.0

July 2008 г. water level (July 2008 г.) March 2009 г. water level (March 2009 г.)

149.5

148.5

148.0

147.5

147.0

146.5

3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42

level, m BS

149.0

distance, m

BWFS DBC

Flow distribution at the Vyzhevsky floodgate in low water periods. Pripyat River Current state (before project activity).

The points of hydraulic and hydrological estimations during Spring 09 expedition (high water conditions)

Beloe Lake

Khabarishensky Canal

Volyanskoe Lake

Svyatoe Lake

Pripyat River Vyzhevsky Canal

25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

minimum mounthly average during summerautumn period minimum dayly average during summer-autumn period

year

1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

3

water disharge, m /sec

Minimum water discharges in River Pripyat upstream of BWFS of BDC (Pochapy village)

Average water discharges in the River Pripyat upstream of BWFS (Pochapy village) for the different periods 90 85 80

for summer period for spring-summer period for the summer-autumn period

75 70 60 55 50 45 40 35 30 25 20 15 10 5

year

0 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

water discharge, m3/sec

65

500 480 460 440 420 400 380 360 340 320 300 280 260 240 220 200 180 160 140 120 100 80 60 40 20 0 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

3

water discharge, m /sec

Maximum water discharges in the River Pripyat upstream of BWFS (Pochapy village)

year

Curves of probabilities of distribution of the minimum monthly average water discharges in Pripyat River for the summer-autumn period

40 empirical curve analytic curve Curves three-parameter Gamma-distribution

30 25 20 15 10 5

probability, P(%)

100

95

90

85

80

75

70

65

60

55

50

45

40

35

30

25

20

15

10

5

0 0

3

water discharge Q(m /sec)

35

Curve V=f(Q) for river Pripyat downstream of BWFS

0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0

3.0 2.8 2.6 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0

water discharge Q, m3/sec

0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0

depth, m

average velocity, m/sec

0.20 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.10 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 Curve Q=f(h) for river Pripyat downstream of BWFS 0.01 0.00

3

water discharge Q, m /sec

20-Jul 22-Jul 24-Jul 26-Jul 28-Jul 30-Jul 1-Aug 3-Aug 5-Aug 7-Aug 9-Aug 11-Aug 13-Aug 15-Aug 17-Aug 19-Aug 21-Aug 23-Aug 25-Aug 27-Aug 29-Aug 31-Aug 2-Sep 4-Sep 6-Sep 8-Sep 10-Sep 12-Sep 14-Sep 16-Sep 18-Sep 20-Sep 22-Sep 24-Sep 26-Sep 28-Sep 30-Sep 2-Oct 4-Oct 6-Oct 8-Oct 10-Oct 12-Oct 14-Oct 16-Oct 18-Oct 20-Oct

3

water discharge, m /sec 5.0 4.8 4.6 4.4 4.2 4.0 3.8 3.6 3.4 3.2 3.0 2.8 2.6 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 The limiting periods of hydrographers of flow of the river Pripyat (Pochapy village) for shallow years 1994 2003 Minimum feasible discharge MFD=1 m**3/sec Minimum feasible discharge MFD=1,7 m**3/s

149.5 149.4 149.3 149.2 149.1 149.0 148.9 148.8 148.7 148.6 148.5 148.4 148.3 148.2 148.1 148.0 147.9 147.8 147.7 147.6 147.5 147.4 147.3 147.2 147.1 147.0 146.9

3

water discharge, m /sec 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67

water level, m BS

Calibration curve of the river Pripyat downstream of the BWFS

3.4 3.3 3.2 3.1 3.0 2.9 2.8 2.7 2.6 2.5 2.4 2.3 2.2 2.1 2.0 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6

3 dam beams 4 dam beams 5 dam beams

3 Water discharge thought Vyzhevskiyi floodgate, m /sec

34

33

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

6 dam beams

0

Indications of depth-gauge, m

Calibration curves of the Vyzhevskiyi floodgate Q=f(h) depending on amount of dam beams

Recommendations on flow distribution of the Pripyat River in Verchnepripjatsky waterworks facility were suggested on the base of the minimum feasible discharge (MFD) which can provide the environmental functioning of the river and flow forming discharge.

River Pripyat downstream of BWFS

River Pripyat upstream of BWFS of DBC

On the hydrological feasibilities MFD constituted 1.0 m3/sec, according to the hydraulic feasibilities on the required conditions of the flowage MFD constitutes 1.7 m3/sec, flow forming discharge constitutes 6.0 m3/sec. MFD=1.0 m3/sec and MFD=1.7 m3/sec are represented in the Recommendations.

Graphic presentation of the Recommendations on flow distribution of the Pripyat River in Verchnepripjatsky waterworks facility when the water discharge is 6 m3/s over the waterworks facility

Digital relief model of BWFS DBC

Beloozersky Canal

Flooded zones of the territory were developed Khabarishensky Canal

the water levels of Beloe Lake are 146,5 - 147,6 m

Volyanskoe Lake

Svyatoe Lake Vyzhevsky Canal

Beloe Lake

Flooded zones of the territory

The recommended range of water levels change in the Lakes of Beloozerskaya water feed system is 0.4 m (from 146.8 – 147.2 m of Beloe Lake).

the water levels of Beloe Lake are 146,8 - 147,2 m

The range is defined on the grounds of projects cameral activities using digital relief model, field hydrological Investigations and water balance calculations.

∆S=109.35 hectares ∆V=4.15 million m3

Main result of the Project Operation Rules of Beloozerskaya waterfeed system of the Dniepro-Bug Canal

Thank you for attention