convert_RtoS {marelac} | R Documentation |
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, |
p |
Gauge (or applied) pressure, the pressure referenced against the local atmospheric pressure, bar |
P |
True pressure, bar |
Value
The salinity.
Note
The conductivity ratio for Salinity = 40.0000, t = 40, p = 1000 is 1.888091.
Author(s)
Karline Soetaert <karline.soetaert@nioz.nl>
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
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