| K_W {AquaEnv} | R Documentation |
K\_W
Description
PUBLIC function: calculates the ion product of H2O
Usage
K_W(S, t, p=0, SumH2SO4=NULL, SumHF=NULL, khf="dickson", khso4="dickson")Arguments
S |
salinity in practical salinity units (i.e. no unit) |
t |
temperature in degrees centigrade |
p |
gauge pressure (total pressure minus atmospheric pressure) in bars |
SumH2SO4 |
total sulfate concentration in mol/kg-solution (calculated from S if not supplied) |
SumHF |
total fluoride concentration in mol/kg-solution (calculated from S if not supplied) |
khf |
S, t relation for K\_HF needed for scale conversion: either "dickson" (default, Dickson1979a) or "perez" (Perez1987a) |
khso4 |
S, t relation for K\_HSO4 needed for scale conversion: either "dickson" (default, Dickson1990) or "khoo" (Khoo1977) |
Value
the ion product of H2O in (mol/kg-solution)2 on the free proton pH scale
Author(s)
Andreas F. Hofmann. Maintained by Karline Soetaert (Karline.Soetaert@nioz.nl).
References
Millero1995 (SWS pH version), DOE1994 (cites Millero1995), Zeebe2001
Examples
K_W(35, 15)
K_W(35, 15, 10)
K_W(S=35, t=15, p=10, SumH2SO4=0.03)
plot(K_W(35, 1:25), xlab="temperature / degC")