Low uncertainty flow gauging service, for flow measurements in rivers, streams or canals. Generation of discharge curves in gauging sections and other studies and services.
What is Capta Hydro’s gauging service
The gauging services provided by Capta Hydro are
adapted to the measurement needs of our customers according to their objectives.
Depending on the needs, the appropriate measurement and analysis strategy is chosen to minimize the uncertainty of the measurements.
Each of the steps involved in this type of consultancy are detailed below.
The main applications of gauging services are as follows:
Depending on the particular situation,
At Capta Hydro we offer the use of two methodologies for the realization of the gaugings
Methodology / Salt Tracer
Very versatile, ideal for non-uniform, turbulent and high slope sections. Low uncertainty (less than 5%).
Measurements between 10-10,000 L/s.
Channels with flow rates of less than 10m3/s, turbulent rivers and estuaries, and high slope channels that consider a place where salt can be properly mixed.
Methodology / Area-Speed
Ideal for uniform and calm sections. Low uncertainty following ISO748 guidelines.
ADCP equipment provides more versatility (poorly defined geometries and places without bridges), especially in very wide channels.
All types of channels with uniform velocities and bridges that allow the introduction of the instrument over its entire width.
The gauging campaigns carried out by Capta Hydro on our water distribution canal networks have allowed us to maintain the necessary accuracy to ensure the correct distribution of water among our canals.
Juan Carlos Berrios
Operations Manager, Sociedad del Canal del Maipo