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HYDROMETEOROLOGICAL ANALYSIS TYPICAL FOR DEFINING OF WATER BALANCE OF PRESPA LAKE. BALWOIS, OHRID 2004, Macedonia TASE STOJOV B.Sc.Civ.Eng., VASKO STOJOV B.Sc.Civ.Eng., LIDIJA TRAJANOSKA B.Sc.Met.Eng. Republic of Macedonia. INTRODUCTION:. GEOGRAPHY:. Border between:.
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HYDROMETEOROLOGICAL ANALYSIS TYPICAL FOR DEFINING OF WATER BALANCEOF PRESPA LAKE BALWOIS, OHRID 2004, Macedonia TASE STOJOV B.Sc.Civ.Eng., VASKO STOJOV B.Sc.Civ.Eng., LIDIJA TRAJANOSKA B.Sc.Met.Eng. Republic of Macedonia
INTRODUCTION: GEOGRAPHY: Border between: Macedonia, Greece, Albania Catchment area: Ohrid - Prespa West South - Territory part: West Water surface: 314 km2 OHRID Catchment area: 1368 km2 PRESPA Mountains around: Baba, Bigla, MK Plakenska, Galichica Suva Gora, Gorbech GR AL South
STATIONS HYDROLOGICAL METEOROLOGICAL Brajchino Resen Stenje Brajchino St. Naum Figure 1.- Ohrid – Prespa catchment area
Surface and the ground water inflow. Precipitation into the catchment, Direct precipitation into the lake, DEPENDS ON: WATER INFLOW IN PRESPA LAKE WATER LOSS: Underground discharge -> Ohrid Lake Evaporation from the lake surface Human utilization
Yo + Xo – Zo – Yo1 – Eo = 0 (1961/62 – 2002/03) Water inflow = 9,24 m3/s - Underground water outflow = 7,86m3/s - Human utilization = 1,38 m3/s = Water balance = 0 m3/s
Yo + Xo – Zo – Yo1 – Eo = 0 (1987/88 – 2002/03) Water inflow = 6,53 m3/s - Underground water outflow = 7,86m3/s - Human utilization = 2,00 m3/s =-3,3m3/s Water balance ≠ 0 m3/s
CONSEQUENCIES: 70 cm Violation of the water level oscillation. Deplete of the lake from 1,54*109 m3 water. 0” = 847,68 mnm -398 cm &
CONCLUSION Prespa Outflow in Ohrid Lake CONSTANT PROBLEM? Dry years & Human utilization: 1961/62 – 2002/03 Q = 1,38 m3/s 1987/88 – 2002/03 Q = 2,00 m3/s