A new approximation of the equation of state for seawater, suitable for numerical ocean models

Le résumé fourni par la source

An approximation to the UNESCO equation of state for seawater is obtained in the form of a polynomial that is cubic in potential temperature, quadratic in pressure, and linear in salinity. The polynomial represents a reasonable compromise between accuracy and computational economy; it also allows potential temperature to be obtained analytically from given values of density, salinity, and pressure.

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