Description Usage Arguments Value Note Author(s) References See Also Examples
Calculates the saturated concentration of several gases in water for a given temperature, salinity and pressure.
1 2 3 | gas_satconc(S = 35, t = 25, P = 1.013253,
species =c("He","Ne","N2","O2","Ar","Kr","CH4","CO2","N2O"),
atm = atmComp(species))
|
S |
Salinity (dimensionless), |
t |
Temperature, degrees C, |
P |
True pressure, bar |
species |
character vector with gasses whose saturated concentration should be estimated. |
atm |
The number of moles of the gas per unit mole of air in the
atmosphere, the "mixing ratio". When present, this overrules the
|
The saturated concentration of the gas in mmol/m3.
Compared to the table in Sarmiento and Gruber, there is a slight deviation for N2O, and He.
CO2 is OK for temperature 0 only.
Karline Soetaert <karline.soetaert@nioz.nl>
Sarmiento JL and Gruber N, 2006. Ocean Biogeochemical Dynamics. Princeton University Press, Princeton. p 85.
who cite:
for He and Ne: Weiss R, 1971. Solubility of helium and neon in water and seawater. Journ. Chem. Eng. Data 16, 235-241.
N2, O2 and Ar: Weiss R, 1970. The solubility of nitrogen, oxygen, and argon in water and seawater. Deep-Sea Res. 17, 721-35.
Kr: Weiss R and Kyser TK, 1978. Solubility of Krypton in water and seawater. Journ. Chem. Eng. Data 23, 69-72.
Rn: Hackbusch 1979. Eine Methode zur Bestimmung der Diffusions-, Löslichkeits un Permeabilitats Konstanten von Radon-222 in Wasser und Meereswasser. Dissertation, University of Heidelberg, Germany.
CH4: Wiesenburg DA and Guinasso JNL, 1979. Equilibrium solubilities of methane, carbon monoxide and hydrogen in water and sea water. Journ. Chem. Eng. Data 24, 256-360.
CO2 and N2O: Weiss R and Price BA, 1980. Nitrous oxide solubility in wate and sewater. Mar. Chem. 8, 347-359.
CFC-11 and CFC-12: Warner MJ and Weiss R, 1985. Solubilities of chlorofluorocarbons 11 and 12 in water and sewater. Deep-Sea Res. 32, 1485-1497.
SF6: Bullister et al., 2002. The solubility of sulfur hexafluroide in water and sewater. Deep-Sea Res. I, 49, 175-188.
CCl4: Bullister JL and Wisegarver DP, 1998. The solubility of carbon tetrachloride in water and seawater. Deep-Sea Res. I, 1285-1302.
gas_O2sat
,
gas_schmidt
,gas_solubility
,gas_transfer
,
atmComp
, vapor
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 | gas_satconc(species = "O2")
Temp <- seq(from = 0, to = 30, by = 0.1)
Sal <- seq(from = 0, to = 35, by = 0.1)
mf <- par(mfrow = c(1,2))
species <- c("N2", "CO2", "O2", "CH4", "N2O")
gsat <- gas_satconc(t = Temp, species = species)
matplot(Temp, gsat, type = "l", xlab = "temperature", log = "y", lty = 1,
ylab = "mmol/m3", main = "Saturated conc (S=35)", lwd = 2)
legend("right", col = 1:5, lwd = 2, legend = species)
gsat <- gas_satconc(S = Sal, species = species)
matplot(Sal, gsat, type = "l", xlab = "salinity", log = "y", lty = 1,
ylab = "mmol/m3", main = "Saturated conc (T=20)", lwd = 2)
legend("right", col = 1:5, lwd = 2, legend = species)
par(mfrow = mf)
## generate table 3.2.4 from Sarmiento and Gruber
Temp <- seq (0, 30, by = 5)
## saturated concentrations in mmol/m3, at 1 atm.
A <- data.frame(cbind( t = Temp,
N2 = gas_satconc(t = Temp, species = "N2"),
O2 = gas_satconc(t = Temp, species = "O2"),
CO2 = gas_satconc(t = Temp, species = "CO2"),
Ar = gas_satconc(t = Temp, species = "Ar")))
format(A, digits = 4)
## table values
## at 0 dg C: 635.6 359.1 23.37 17.44
## at 20 dg C: 425.7 230.5 11.61 11.29
## note the deviations for CO2 (20dg)!
## saturated concentrations in micromol/m3, at 1 atm.
AA <- data.frame(cbind(t = Temp,
N2O = gas_satconc(t = Temp, species = "N2O")*1000,
Ne = gas_satconc(t = Temp, species = "Ne" )*1000,
Kr = gas_satconc(t = Temp, species = "Kr" )*1000,
CH4 = gas_satconc(t = Temp, species = "CH4")*1000,
He = gas_satconc(t = Temp, species = "He" )*1000))
format(AA, digits = 4)
## table values
## at 0 dgC: 14.84 8.11 4.33 3.44 1.81
## at 20 dgC: 7.16 6.94 2.50 2.12 1.70
## Note: different for N2O
|
Loading required package: shape
Loading required package: seacarb
Loading required package: oce
Loading required package: gsw
Loading required package: testthat
Attaching package: 'marelac'
The following objects are masked from 'package:oce':
coriolis, gravity
O2
210.9798
t N2 O2 CO2 Ar
1 0 635.6 359.1 23.368 17.444
2 5 566.6 316.5 19.308 15.417
3 10 510.5 282.1 16.187 13.769
4 15 464.2 253.9 13.748 12.414
5 20 425.7 230.5 11.811 11.288
6 25 393.3 211.0 10.251 10.339
7 30 365.6 194.4 8.977 9.529
t N2O Ne Kr CH4 He
1 0 14.932 8.107 4.329 3.442 1.820
2 5 12.261 7.761 3.708 2.997 1.781
3 10 10.208 7.457 3.215 2.641 1.750
4 15 8.603 7.187 2.819 2.353 1.725
5 20 7.327 6.943 2.497 2.117 1.705
6 25 6.298 6.716 2.231 1.921 1.688
7 30 5.456 6.501 2.009 1.756 1.673
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