38 Danube Pollution Reduction Programme – National Review, Ukraine 4.8. Water Discharges The Danube and its major tributaries water discharges are presented on the Figures 4.4., 4.5., 4.6., 4.7. and Table 4.10. The annual course of river discharge is typical for the temperate geographical zone with 2 peaks: major - spring flood in March-April-May and secondary (rain floods) in the fall. Monthly average river discharges are presented in Annexes. Table 4.10. Average annual, maximal and minimal river discharges for Ukrainian territory of the Danube River basin Danube Vilkovo (1 km downstream) Izmail (1 km downstream) Reni (1 km downstream) m 3 /s 1994 1995 1996 1994 1995 1996 1994 1995 1996 Average per year 0,89 1,96 1,92 0,74 1,91 1,89 0,82 1,69 1,66 Max 1,50 2,40 2,80 1,75 2,50 2,80 1,65 2,60 2,50 Min 0,26 1,30 1,20 0,13 1,00 0,96 0,15 0,58 0,98 Table 4.10. (continued) Tisza Khust (4 km upstream) Rakhiv (0,5 km downstream) Tyachiv (9 km upstream) Vilok (in village) 1994 1995 1996 1994 1995 1996 1994 1995 1996 1994 1995 1996 Average per 268,00 180,75 100,00 9,25 21,63 9,30 170,26 197,00 84,20 37,15 157,68 119,00 year Max 338,00 247,00 110,00 9,80 38,40 9,30 466,00 280,00 92,70 65,00 362,00 131,00 Min 188,00 95,00 90,00 8,70 11,60 9,30 40,00 106,00 75,70 3,80 36,70 107,00 Table 4.10. (continued) Uzhgorod (2 km downstream) Uzh 1994 1995 1996 Average per year 23,42 25,82 15,67 Max 42,20 80,70 35,90 Min 5,60 3,70 4,66 Table 4.10. (continued) Chernivtsi (3 km downstream) Kolomiya (0,5 km downstream) Prut 1994 1995 1996 1994 1995 1996 Average per year 50,69 70,79 30,90 10,09 20,85 Max 127,00 187,00 70,00 22,00 26,00 0,00 Min 21,60 26,10 16,70 3,50 15,70 0,00
<strong>Technical</strong> <strong>Reports</strong> – Part C: Water Quality 39 Figure 4.4. Water flow (cub.m/s) in Danube river near Vilkovo vill., 1995 5000 4500 4000 3500 3000 2500 2000 1500 1000 500 0 Jan Feb Mar Apr May Jun Jul Months Aug Sep Oct Nov Dec Figure 4.5. Water flow (cub.m/s) in Tissa river near Tyachev town, 1994 500 450 400 350 300 250 200 150 100 50 0 Jan Feb Mar Apr May Jun Jul Months Aug Sep Oct Nov Dec