FIELD: physics.
SUBSTANCE: method is based on measuring the space-average (with a linear dimension equal to the distance between the emitter and the receiver) vertical profile of sound speed via horizontal pulsed acoustic probing with measurement of the time of arrival of pulses between an emitter and a receiving hydrophone fixed in the measurement region. Field values of sound speed on the depth along the path are determined simultaneously for all measurement levels with frequency ranging from once per second and higher over time periods of more than a year.
EFFECT: high reliability and accuracy of hydrological measurements, simple and high accuracy of the method of monitoring the vertical profile of sound speed in extreme conditions on tested water bodies.
6 dwg
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