✦ LIBER ✦

New instrument for measuring water discharge by the salt dilution method

✍ Scribed by Christian Bronge; Alan Openshaw

Publisher: John Wiley and Sons
Year: 1996
Tongue: English
Weight: 431 KB
Volume: 10
Category: Article
ISSN: 0885-6087
DOI: 10.1002/(sici)1099-1085(199603)10:3<463::aid-hyp312>3.0.co;2-d

No coin nor oath required. For personal study only.

✦ Synopsis

The instantaneous salt dilution method for water discharge measurements in open channels has been improved by the development of a new instrument measuring conductivity. The salt method consists of two parts: the calibration and the actual measurement in the stream. The calibration aims to calculate the linear relationship between electrical conductivity and salt concentration at various degrees of dilution in a salt solution. The original undiluted solution is injected into the water of a stream and the conductivity is measured downstream from the injection site. When measuring, the new instrument integrates the conductivity over time. From the value obtained on the instrument's display, the water discharge can easily be calculated on a hand-PC in the field. The instrument has eliminated the subsequent calculation work formerly necessary. It has increased the accuracy of the method and also reduced the need for field personnel during measurements.

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