The salinity of ocean water can be determined by measuring the conductivity of the water. The characteristics of water such as salinity, depth, temperature, density can be defined by the instrument called Conductivity Temperature Depth instrument. Using this technique oceanographers determine the salinity of water.
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Oceanographers do measure the density of ocean water by actually taking a sample of sea water out of the ocean and then taking it to the laboratory to be measured.
The two key factors that affect the density of sea water are known to be;
There is said to be an indirect relationship that exist between the sea water temperature and also the density.
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