To make sure the currents are flowing properly the USACE uses a NexSens CB-450 Data Buoy with a Seatek Ultrasonic Ranging System.
Articles Tagged: environmental monitoring
Coastal vs. lake data buoys: a comparison. Any aquatic environment is dynamic and complex, but lakes and rivers are different monitoring environments from their coastal cousins.
City of Indianapolis
A real-time data collection network provides personnel with up-to-the-hour water quality data from multiple sites along the White River.