Constant-rate dilution gauging

{
  "id": "MLC-T-MET-004624",
  "term": "Constant-rate dilution gauging",
  "field": "Meteorology and atmospheric science",
  "definition": "A method for measuring water flow rate in a channel or stream by injecting a chemical or fluorescent tracer at a constant rate. The flow discharge is calculated based on the degree to which the stream's flow dilutes the tracer's concentration, which is measured at a downstream point after complete mixing has occurred. This technique is particularly suited for turbulent, high-gradient streams where traditional current-meter methods are difficult or unsafe to implement.",
  "url": "https://mlchart.com/terminology/meteorology/constant-rate-dilution-gauging/"
}