So-called water-balance can be calculated on a daily, weekly or monthly time step 25mm 50mm 25mm 50mm 25mm 50m 1.0 0.75 0.75 0.5 0.25 0.0 JAN FEB MAR Available water capacity f(soil depth, soil texture) in this example, awc 100mm Moisture index =1 if 'bucket is full 0 if bucket'empty• So-called water-balance can be calculated on a daily, weekly or monthly time step: • Available water capacity = f (soil depth, soil texture) • in this example, AWC = 100mm • Moisture index = 1 if ‘bucket’ is full = 0 if ‘bucket’ empty 25mm 50mm 25mm 50mm 25mm 50mm 1.0 0.75 0.0 0.75 0.5 0.25 JAN FEB MAR