Table 4

Water balance of the WetSpa model results

Water balance ComponentsCalibration period (1999–2009)
Validation period (2010–2014)
Total (mm)Annual mean (mm/year)Share %Total (mm)Annual mean (mm/year)Share %
Precipitation 7,481 680 100 339 679 100 
Surface runoff 2,580 234 34 1,201 240 35 
Interflow 44 19 
Groundwater flow 176 16 76 15 
Total runoff (RT) 2,800 254 37 1,297 259 38 
Soil moisture storage (ΔSS) –86 –8 –1 –124 –25 –4 
Evapotranspiration (ET) 4,796 436 64 2,088 418 61 
Groundwater storage (ΔSG) 92 77 15 
Summation of water balance components (RT + ET + ΔSS + ΔSG) 7,602 691 101 3,336 667 98 
Water balance ComponentsCalibration period (1999–2009)
Validation period (2010–2014)
Total (mm)Annual mean (mm/year)Share %Total (mm)Annual mean (mm/year)Share %
Precipitation 7,481 680 100 339 679 100 
Surface runoff 2,580 234 34 1,201 240 35 
Interflow 44 19 
Groundwater flow 176 16 76 15 
Total runoff (RT) 2,800 254 37 1,297 259 38 
Soil moisture storage (ΔSS) –86 –8 –1 –124 –25 –4 
Evapotranspiration (ET) 4,796 436 64 2,088 418 61 
Groundwater storage (ΔSG) 92 77 15 
Summation of water balance components (RT + ET + ΔSS + ΔSG) 7,602 691 101 3,336 667 98 
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