marelac (version 2.1.9)

convert_RtoS: Conductivity-Salinity Conversion

Description

Estimates the salinity of seawater from conductivity, temperature and pressure. The equation is valid over ranges: temperature from -2 to 35 \(^\circ\)C, pressure from 0 to 1000 bar, and salinity from 2 to 42.

Usage

convert_RtoS(R = 1, t = 25, p = max(0, P-1.013253), P = 1.013253)

Arguments

R

Conductivity ratio, the conductivity at (S, t, P) divided by the conductivity at S = 35, t = 15, p = 0 [-]

t

Temperature, \(^\circ\)C

p

Gauge (or applied) pressure, the pressure referenced against the local atmospheric pressure, bar

P

True pressure, bar

Value

The salinity.

References

Fofonoff NP and Millard RC Jr, 1983. Algorithms for computation of fundamental properties of seawater. UNESCO technical papers in marine science, 44, 53 pp. http://unesdoc.unesco.org/images/0005/000598/059832EB.pdf

See Also

convert_AStoPS, convert_PStoAS, convert_StoR, convert_StoCl, convert_p, convert_T,

Examples

# NOT RUN {
convert_RtoS(R = 1.888091, t = 40, p = 1000)

## Salinity = 40.0000, t = 40, p = 1000, cond = 1.888091
convert_RtoS(R = 1, t = 15, p = 0)

## Check values
convert_RtoS(R = 0.6990725, t = 10, p = 0)  # 26.8609
convert_RtoS(R = 0.6990725, t = 10, p = 100)  # 26.5072
convert_RtoS(R = 1.1651206, t = 20, p = 100)  # 36.3576

# }