pHconv {seacarb}R Documentation

Conversion factors to change pH scale

Description

Conversion factors from the total scale to the free and seawater scales

Usage

pHconv(S=35,T=25, P=0)

Arguments

S Salinity, default is 35
T Temperature in degrees Celsius, default is 25oC
P Hydrostatic pressure in bar (surface = 0), default is 0

Value

The function returns a list with 3 conversion factors :

pHtotal2SWS to convert from the total scale to seawater scale
pHtotal2free to convert from the total scale to the free scale
pHfree2SWS to convert from the free scale to the seawater scale

Author(s)

Karline Soetaert K.Soetaert@nioo.knaw.nl

References

Dickson, A.G. & F.J. Millero, 1987 A comparison of the equilibrium constants for the dissociation of carbonic acid in seawater media. Deep-Sea Research 34:1733-1743.

See Also

kconv.

Examples

##To convert pH from the total scale to the seawater and free scales
## (at salinity=35, temperature=25oC and atmospheric pressure):
  pHconv(35, 25, 0)
  conv <- pHconv()
  c(pHtotal=8, pHSWS=8+conv$pHtotal2SWS, pHfree=8+conv$pHtotal2free)  

[Package seacarb version 2.0.6 Index]