Water and soil salinity are measured by passing an electric current between the two electrodes of a salinity meter in a sample of soil or water. ... Salts increase the ability of a solution to conduct an electrical current, so a high EC value indicates a high salinity level.

What are two methods used to measure salinity?

In the past century, only two major methods have been used in the oceanography for measurement of the seawater samples salinity: chlorinity titration and conductometry.

How do you measure salinity of seawater?

You can easily measure the salinity of sea/ocean water using an instrument called a refractometer, which measures the index of refraction of a particular substance. It is a device used in geology, medicine and agriculture. Set up your refractometer device by dropping three drops of distilled water on its meter.