Water levels in reservoirs are closely monitored through a combination of manual measurements, automated instrumentation, and remote sensing technologies. Float-operated sensors, called float gauges, are commonly used to measure water levels, providing real-time data. Additionally, pressure transducers placed at different depths can also track water levels accurately. Remote sensing technologies like radar and sonar can provide continuous monitoring of water levels over larger reservoirs.
Telemetry systems and automated data loggers transmit information to a central control or data collection point, allowing reservoir operators to manage water levels and release water as needed for various purposes, including water supply, flood control, and power generation. Routine inspections and visual assessments are also part of the monitoring process to ensure the accuracy and reliability of the instruments.
