The temperature-pressure dependence of ionic conductivity in sea water at temperature in the oceanic range.

Abstract

The specific conductance of three sea water samples (33. 634°/oo, 34.099°/oo and 35.001°/oo) was measured at twelve temperatures from 0°C to 21.00°C and at nine pressures from atmospheric to 4,141.8 decibars above atmospheric. Polynomials for specific conductance as a function of temperature and as a function of pressure are computed from the data, but the temperature-pressure effect is obscure. Two empirical equations that relate conductivity ratio to temperature and pressure are also developed. These equations better describe the temperature-pressure effect on conductivity at the pressures studied which correspond to the upper 4,000 meters of the ocean.