seacarb (version 2.3.1)

pHinsi: pH at in situ temperature

Description

pH at in situ temperature

Usage

pHinsi(PH=8.2, ALK=2.4e-3, Tinsi=20, Tlab=25, S=35, Pt=0, Sit=0, k1k2 = "l", 
	kf = "pf", pHscale = "T")

Arguments

PH

pH measured in the laboratory

ALK

ALK, total alkalinity (mol/kg)

Tinsi

In situ temperature in degrees Celsius

Tlab

Measurement temperature in degrees Celsius

S

Salinity

Pt

value of the concentration of total phosphate in mol/kg

Sit

the value of the total silicate in mol/kg

k1k2

"l" for using K1 and K2 from Lueker et al. and "r" for using K1 and K2 from Roy et al. , default is "l"

kf

"pf" for using Kf from Perez and Fraga (1987) and "dg" for using Kf from Dickson and Riley (1979), default is "pf"

pHscale

choice of pH scale: "T" for the total scale, "F" for the free scale and "SWS" for using the seawater scale, default is "T" (total scale)

Value

• pH
  pH at in situ temperature

encoding

latin1

References

Hunter K. A., 1998. The temperature dependence of pH in surface seawater. Deep-Sea Research (Part I, Oceanographic Research Papers) 45(11):1919-1930.

Examples

pHinsi(8.2,2.4e-3,25,25,35,0,0)