namespace mom_eos_nemo

Overview

The equation of state using the expressions of Roquet et al. that are used in NEMO. More…

namespace mom_eos_nemo {

// interfaces

interface calculate_density_derivs_nemo;
interface calculate_density_nemo;

// global functions

subroutine, public calculate_density_scalar_nemo(T T, S S, pressure pressure, rho rho, rho_ref rho_ref);

subroutine, public calculate_density_array_nemo(
    T T,
    S S,
    pressure pressure,
    rho rho,
    start start,
    npts npts,
    rho_ref rho_ref
    );

subroutine, public calculate_compress_nemo(
    T T,
    S S,
    pressure pressure,
    rho rho,
    drho_dp drho_dp,
    start start,
    npts npts
    );

} // namespace mom_eos_nemo

Detailed Documentation

The equation of state using the expressions of Roquet et al. that are used in NEMO.

Global Functions

subroutine, public calculate_density_scalar_nemo(
    T T,
    S S,
    pressure pressure,
    rho rho,
    rho_ref rho_ref
    )

This subroutine computes the in situ density of sea water (rho in [kg m-3]) from absolute salinity (S [g kg-1]), conservative temperature (T [degC]), and pressure [Pa]. It uses the expressions derived for use with NEMO.

Parameters:

t	Conservative temperature [degC].
s	Absolute salinity [g kg-1].
pressure	pressure [Pa].
rho	In situ density [kg m-3].
rho_ref	A reference density [kg m-3].

subroutine, public calculate_density_array_nemo(
    T T,
    S S,
    pressure pressure,
    rho rho,
    start start,
    npts npts,
    rho_ref rho_ref
    )

This subroutine computes the in situ density of sea water (rho in [kg m-3]) from absolute salinity (S [g kg-1]), conservative temperature (T [degC]), and pressure [Pa]. It uses the expressions derived for use with NEMO.

Parameters:

t	Conservative temperature [degC].
s	Absolute salinity [g kg-1].
pressure	pressure [Pa].
rho	in situ density [kg m-3].
start	the starting point in the arrays.
npts	the number of values to calculate.
rho_ref	A reference density [kg m-3].

subroutine, public calculate_compress_nemo(
    T T,
    S S,
    pressure pressure,
    rho rho,
    drho_dp drho_dp,
    start start,
    npts npts
    )

Compute the in situ density of sea water (rho in [kg m-3]) and the compressibility (drho/dp = C_sound^-2, stored as drho_dp [s2 m-2]) from absolute salinity (sal in g/kg), conservative temperature (T [degC]), and pressure [Pa], using the expressions derived for use with NEMO.

Parameters:

t	Conservative temperature [degC].
s	Absolute salinity [g/kg].
pressure	pressure [Pa].
rho	In situ density [kg m-3].
drho_dp	The partial derivative of density with pressure (also the inverse of the square of sound speed) [s2 m-2].
start	The starting point in the arrays.
npts	The number of values to calculate.