R: Converts the CO2 fugacity to CO2 partial pressure

f2pCO2 {seacarb} | R Documentation

## Converts the CO2 fugacity to CO2 partial pressure

### Description

Converts fCO2 (fugacity of CO2) into pCO2 (partial pressure in CO2)

### Usage

    f2pCO2(T = 25, Patm=1, P=0, fCO2)

### Arguments

`T` | Temperature in degrees Celsius, default is 25oC
`Patm` | Surface atmospheric pressure in atm, default 1 atm
`P` | Hydrostatic pressure in bar, default is 0 bar (surface)
`fCO2` | Fugacity of CO2 in μatm, the same units as that for the pCO2 output

### Value

`pCO2` | Partial pressure of CO2 in μatm, the same units as that for the fCO2 input

### Note

Warning: pCO2 estimates below 100 m are subject to considerable uncertainty. See Weiss (1974) and Orr et al. (2015)

### Author(s)

Heloise Lavigne, Jean-Pierre Gattuso, and James Orr gattuso@obs-vlfr.fr

### References

Dickson A. G., Sabine C. L. and Christian J. R., 2007. Guide to best practices for ocean CO2 measurements. PICES Special Publication 3, 1-191.

Orr J. C., Epitalon J.-M. and Gattuso J.-P., 2015. Comparison of seven packages that compute ocean carbonate chemistry. Biogeosciences 12, 1483-1510.

Weiss, R. F. and Price, B. A., 1980. Nitrous oxide solubility in water and seawater, Marine Chemistry, 8, 347-359, 1980.

Weiss, R. F., 1974. Carbon dioxide in water and seawater: the solubility of a non-ideal gas, Mar. Chem., 2, 203-215.

Weiss, R. F. and Price, B. A., 1980. Nitrous oxide solubility in water and seawater, Marine Chemistry, 8, 347-359.

### See Also

`p2fCO2`.

### Examples

    f2pCO2(T=25, Patm=1.0, P=0, fCO2=380)

[Package seacarb version 3.1.1 Index]