Today we took another discharge measurement in similar low flow conditions and confirmed the stage-rating curve. The new measurement (0.358 m, 0.500 m3/s) plots very close to the current rating-curve estimate (0.459 m3/s). The difference between the measured and the estimated is 0.04 m3/s or 8.8% above the expected value.
Stage = 0.358 m, Q = 0.500 m3/s |