Measuring water and wastewater flows provides valuable data for controlling processes or monitoring discharges. Flow meters can be used in, for example, canals, rivers, waterways, streams, wastewater treatment plants, sewers and drinking water pipes.
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The flow rate data are used for the design and monitoring of irrigation canals. This allows for the design of an efficient water distribution system in which a surplus or waste of water is avoided as much as possible. The flow rate is measured frequently in particular at canal splitting or separation structures. At section level it is important to know the flow rate in order to determine whether the crop receives sufficient water.
For the management of irrigation systems it is important that the quantity of water flowing through canals can be measured accurately. In the field of irrigation this is called discharge (flow rate). Discharge is the amount of water flowing through a canal at a certain place at a certain time. The flow rate is usually expressed in litres per second or cubic meters per hour. Water discharge measurements are important for the determination of a hydrologic balance in a certain area.
