Measurement devices for irrigation water

Abstract

Efficient water use and aquifer conservation require accurate measurement of the water used in both gravity and pressurized irrigation systems. Volumetric irrigation delivery is very important for any conservation policy. A large number of measurement devices must be placed in both open channels and closed conduits in the irrigation system to achieve this goal, and in Mexico it must be done quickly because of the new water law. The Mexican Institute of Water Technology created a program to develop measuring devices but in addition a broad and effective programme of technology transfer was needed, including the development of specialized software, and also training courses and workshops. This paper presents the volumetric channel and well (closed conduit) flowmeters and the main components of the technology transfer programme thanks to which these devices, in the short period of two years, entered into general use in Mexico.