Discharge Measuring for Runoff Analysis Using Existing Channel and Tank

The precise discharge given by actual measurements is needed for hydrology and so on.But some of the measurements are taken under limited conditions. The discharge measurements discussed in this paper were tried at the end of our university farm. The channel and the road could not be reformed for measuring. Under this condition, the electrometric water depth was measured by immersion-type level transmitter settled in the tank at the upstream end of the steep channel. The calibration of the discharge based on this water depth was tried. The general relation between the discharge and the water depth was confirmed in the small range of discharge. Parameters for the improvement of the accuracy of was calibration was discussed. On of the time series of measurements was given for investigation