seawater carbonate chemistry with R


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Documentation for package ‘seacarb’ version 3.0

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alkalinity Example data file for function at
amp pH value of the AMP buffer
at Calculates total alkalinity from potentiometric titration data
bjerrum Bjerrum plot
bor Total boron concentration (mol/kg)
buffer Buffer parameters of the seawater carbonate system
buffesm Buffer capacities of the seawater carbonate system as defined by Egleston et al. (2010)
carb Parameters of the seawater carbonate system
carbex Parameters of the seawater carbonate system [EXPERIMENTAL VERSION]
carbm Parameters of the seawater carbonate system, in case of artificial addition of boron
d2p Converts depth in meters to pressure in dbar
f2pCO2 Converts the CO2 fugacity to CO2 partial pressure
K0 Henry's constant mol/(kg/atm)
K1 First dissociation constant of carbonic acid (mol/kg)
K1p First dissociation constant of phosphoric acid (mol/kg)
K2 Second dissociation constant of carbonic acid (mol/kg)
K2p Second dissociation constant of phosphoric acid (mol/kg)
K3p Third dissociation constant of phosphoric acid (mol/kg)
Kb Dissociation constant of boric acid (mol/kg)
kconv Conversion factors to change the pH scale of dissociation constants
Kf Equilibrium constant of hydrogen fluoride (mol/kg)
kfg variable for internal use
Khs Dissociation constant of hydrogen sulfide (mol/kg)
Kn Dissociation constant of ammonium (mol/kg)
Ks Stability constant of hydrogen sulfate (mol/kg)
Ksi Dissociation constant of Si(OH)4
Kspa Solubility product of aragonite (mol/kg)
Kspc Solubility product of calcite (mol/kg)
Kw Ion product of water (mol2/kg2)
oa Perturbation of the seawater carbonate system
Om Carbonate saturation state for magnesian calcites
p2d Converts pressure in dbar to depth in meters
p2fCO2 Converts pCO2 (partial pressure in CO2) into fCO2 (fugacity of CO2)
pCa pCa
Pcoeffs Coefficients used for pressure-correcting the equilibrium constants
Pcorrect Pressure correction of equilibrium constants
pgas pgas
pH Potentiometric pH
pHconv Conversion of pH
pHinsi pH at in situ temperature
pHslope Slope of the calibration curve of a pH electrode
pmix pmix
ppH ppH
psi Molar ratio of CO2 released vs CaCO3 precipitated
pTA pTA
rho Density of seawater (kg/m3)
seacarb_test_P0 Test data file (at P=0) to test the use of the carb function
seacarb_test_P300 Test data file (at P=300) to test the use of the carb function
speciation ionic forms as a function of pH
tris pH value of the TRIS buffer