p2fCO2 {seacarb}

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

Description

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

Usage

p2fCO2(T = 25, Patm=1, P=0, pCO2)

Arguments

T

Temperature in degrees Celsius, default is 25oC

Patm

Surface atmospheric pressure in atm, default is 1 atm

P

Hydrostatic pressure in bar, default is 0 bar (surface)

pCO2

Partial pressure in CO2 in \muatm, the same units as that for the fugacity output

Value

fCO2

Fugacity of CO2 in \muatm, the same units as that for the pCO2 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 [e-mail]

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., 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

f2pCO2.

Examples

p2fCO2(T=25, Patm=0.97, P=0, pCO2=380)