DISCHARGE ESTIMATION METHOD FOR UNGAUGED BASIN USING KNOWN DISCHARGE TRANSFER

摘要

In calculating the long-term outflow amount (long-term outflow amount) of the unmeasured watershed, the actual flow rate at the corresponding point is calculated using the actual water level of the downstream point, the river cross section and the roughness, And the remaining watershed outside the transition watershed is set, and the flow rate of the remaining watershed is subtracted from the measured flow rate for the non-rainfall period of the transition watershed. Through the present invention, it is possible to derive a result that faithfully reflects the actual rainfall and runoff phenomenon in estimating the runoff amount of the unmeasured watershed by applying the non-flow rate method, thereby remarkably improving the accuracy (accuracy) and reliability of the transition flow Can be improved.