Properties of seawater Properties of seawater

Instructions: enter values for salinity, temperature and pressure and click on the 'Calculate' button. (Note: 1 decibar equals 10000 Pa, corresponding to roughly 1 metre increase in water depth.)

Example at 35 PPT, 5 degC and 10 dbar, expect rho=1027.67547 and sigma-t = 27.6756 (Gill, 1982, Atmosphere-Ocean Dynamics, Appendix A3.1), potential temperature = 4.9992 degC.

Salinity: PSU (or PPT)

Temperature: degC

Pressure: decibar

In Situ density = kg/m^3

Potential temperature = degC

Potential density referenced to surface, or sigma-t = kg/m^3