Purpose: to conduct field tests of the developed method for determining water flow in open irrigation canals using the “slope – area” method.
Materials and methods. The modern soft hardware for implementing a method determining water flow in open irrigation canals using the “slope – area” method are proposed. The soft hardware are combined into a measuring complex, the tests of which were carried out in an open main canal. The water level measured by the proposed method was compared with the water level measured by a hydrometric gauge to implement the “velocity – area” method.
Results and discussion. During the research, a calibration dependence of water flow on water level was obtained, and water flow was determined according to the proposed method using a measuring complex. The reading absolute and relative errors of the water level in the canal and the amount of water flow according to the readings of the measuring complex in relation to the readings of the hydrometric gauge are calculated.
Conclusions. According to the data obtained, the error in measuring water levels using the developed method was 1.61%, which indicates the high accuracy of the measurements.
software and hardware, measuring complex, open canal, “slope – area” method, water metering, level sensor, software, autonomous unit, calibration dependence
Vaynberg М. V. On issue of implementing a method for determining water flow in an open irrigation canal. Ways of Increasing the Efficiency of Irrigated Agriculture. 2024;93(2):129–140. (In Russ.).
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