HYDROSOLIDARITY IN PRUT RIVER BASIN – KEY ELEMENT IN TRANSBOUNDARY FLOOD MANAGEMENT -
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HYDROSOLIDARITY IN PRUT RIVER BASIN
– KEY ELEMENT IN TRANSBOUNDARY FLOOD MANAGEMENT -
CEE NBO & N.A. Apele Romane
Ovidiu GABOR, Deputy Director, Vice-President of CEE NBO
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To accomplish the WFD + FD objectives at transboundary
river basins level
Harmonizing the National Plans
HARMONISED BILATERAL AGREEMENTS ( RO + UA; RO + MD)
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BILATERAL AGREEMENTS
Romania – Ukraine:
• Agreement on the cooperation in the transboundary waters field (Galati, 1997)
Flood managementWater qualityExchange data
Romania – Moldova :• Bilateral agreement to
operate Stanca Costesti Dam - 1982
• MoU for the cooperation on the Prut river between N.A. “Apele Romane” / “Romanian Waters” and the related institution from Moldova “Moldavien Waters” – 1995
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RIVER PRUT BASINRIVER PRUT BASINGENERAL DATAGENERAL DATA
- RB Prut surface – 10.990 km2 - Prut river length – 742 km- Qmax 1% = 4150 m3/s- Q max 0.1% = 6550 m3/s
STANCA – COSTESTI DAMV = 1,3 bil cm; H = 40 m
Multipurpose reservoir :Flood control, Water supply for
population & irrigation, Hydropower, Fishing
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Historical flood event on Prut river24/07 – 31/07/2008
… the greatest flood event registrated on Prut river till present :
– Flow : Qmax = 4650 m3/s > Q1% – Shape of hydrograph : two peaks
• H1max = 1130 cm, exceeding the danger level with 5.30 m • H2max = 1058 cm, exceeding the danger level with 4.58 m
– Volume : 1.400 bil cm– Time : 8 days – Speed : water level in the reservoir increased with 8.64
m in 3 1/2 days (max. increasing being of 2.66 m / day- normally 1m / day).
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FLOOD SCENARIO “B”Qout = 1000 CM/S
POTENTIALLY AFECTED People + Goods : - People = 8500 - Houses = 2530 - Roads = 180 km - Agr. Land = 17200 ha
OANCEA
DRINCENI
PRISACANI
UNGHENI
STANCA AVAL
OROFTIANARADAUTI-PRUT
AC. STANCA-COSTESTI
INC. TRIFESTI-SCULENI
INC. SCULENI-TUTORA
INC. TUTORA-GORBAN
FLOOD SCENARIO “C”Qout = 1250 CM/S
POTENTIALLY AFECTED People + Goods : - People = 15000 - Houses = 4575 - Roads = 260 km - Agr. Land = 35841 ha
FLOOD SCENARIO “A”Qout = 750 CM/S
POTENTIALLY AFECTED People + Goods : - People = 2800 - Houses = 721 - Roads = 60 km - Agr. Land = 8400 ha
FLOOD SCENARIO JOINTLY ADOPTEDQin > Q1%;
Qout = 750 m3/s
PROTECTED People + Assets : - People = 15000 - Houses = 4575
- Roads = 260 km - Agr. land = 35841 ha
FLOOD SCENARIOS
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CONCLUSIONS
1. Downstream reservoir – no fatalities and not affected properties ;
2. The reservoir has been jointly operated by ROMANIA and MOLDOVA, according to the new operating guide regulation (2007) ;
3. Technical decisions have been permanently harmonized by the involving parts ;
4. Political decisions have been taken based on technical decisions;
5. Permanent information of the population, on both sides of the Prut river ;
6. Necessity of a new trilateral cooperation agreement (Ukraine, Rep. Moldova, Romania).
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FLOOD HYDROGRAPH 24.07.-10.08.2008
0
1000
2000
3000
4000
5000
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7000
8000
Timp (zi.luna.an ora)
Deb
it (
m3/s
)
SH RADAUTI PRUT KEY EXTRAPOLATEDQmax = 7120 MC/S
SH RADAUTI PRUTKEY RECALCULATED Qmax = 4650 MC/S
SH STANCA AVALQmax= 840 MC/S