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Table 7

Estimation of monthly water balance in Narava watershed

MonthMonthly precipitation mmEstimated runoff mmCalculated PET mmCalculated evaporation mmOther losses mm (GW, SM, SD)
March-07 163.63 17.00 − 180.63 
April-07 1.7 197.25 23.72 − 219.26 
May-07 82 260.68 18.85 − 197.53 
June-07 360.2 272 228.25 5.01 − 145.06 
July-07 69.9 200.41 9.40 − 139.91 
August-07 64.3 178.02 9.65 − 123.36 
September-07 380.6 183.44 156.63 7.60 32.93 
October-07 354.2 171.76 132.41 9.49 40.54 
November-07 0.6 99.83 12.60 − 111.83 
December-07 85.27 15.22 − 100.48 
January-08 59.89 11.84 − 71.73 
February-08 108.4 84.52 10.73 13.14 
Total 1421.9 627.2 1846.79 151.10 − 1203.183 
MonthMonthly precipitation mmEstimated runoff mmCalculated PET mmCalculated evaporation mmOther losses mm (GW, SM, SD)
March-07 163.63 17.00 − 180.63 
April-07 1.7 197.25 23.72 − 219.26 
May-07 82 260.68 18.85 − 197.53 
June-07 360.2 272 228.25 5.01 − 145.06 
July-07 69.9 200.41 9.40 − 139.91 
August-07 64.3 178.02 9.65 − 123.36 
September-07 380.6 183.44 156.63 7.60 32.93 
October-07 354.2 171.76 132.41 9.49 40.54 
November-07 0.6 99.83 12.60 − 111.83 
December-07 85.27 15.22 − 100.48 
January-08 59.89 11.84 − 71.73 
February-08 108.4 84.52 10.73 13.14 
Total 1421.9 627.2 1846.79 151.10 − 1203.183 

PET – potential evapotranspiration, GW – groundwater, SM – soil moisture, SD – soil detention.

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