Seawater Carbonate Chemistry

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Documentation for package ‘seacarb’ version 3.3.3

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alkalinity Example data file for function at
amp pH value of the AMP buffer
bjerrum Bjerrum plot
bor Total boron concentration (mol/kg)
buffer Buffer parameters of the seawater carbonate system
buffergen Buffer factors of the seawater carbonate system as defined by Hagens and Middelburg (2016)
buffesm Buffer capacities of the seawater carbonate system from Egleston et al. (2010), corrected and enhanced
carb Parameters of the seawater carbonate system
carbb Parameters of the seawater carbonate system with boron addition
carbfull Parameters of the seawater carbonate system - extension of carb
d2p Converts depth in meters to pressure in dbar
derivnum Numerical derivatives of seawater carbonate system variables
eos2teos_chem Convert temperature and salinity from EOS-80 to TEOS-10
eos2teos_geo Convert temperature and salinity from EOS-80 to TEOS-10
errors Uncertainty propagation for computed marine carbonate system variables
f2pCO2 Converts the CO2 fugacity to CO2 partial pressure
fCO2insi fCO2 at in situ temperature
fH Total activity coefficient for H+
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)
K2si Second dissociation constant of Si(OH)4
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)
p2xCO2 Converts partial pressure of CO2 to mole fraction of CO2
pCa pCa
pCO2insi pCO2 at in situ temperature
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 and pressure
pHnbs2sws Converts pH from NBS to SWS scale
pHslope Slope of the calibration curve of a pH electrode
pHspec Calculates pHT from results of spectrophotometric measurements
pHsws2nbs Converts pH from SWS to NBS scale
pmix pmix
ppH ppH
psi Molar ratio of CO2 released vs CaCO3 precipitated
pTA pTA
rho Density of seawater (kg/m3)
sa2sp_chem From absolute to practical salinity
sa2sp_geo From absolute to practical salinity
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
seaFET Test seaFET data file
sf_calc Calculation of calibrated pH for seaFET sensor
sf_calib Calibration coefficients for seaFET sensor
sir Parameters of the seawater carbonate system including the substrate-inhibitor-ratio (SIR)
sir_b Parameters of the seawater carbonate system with boron addition, including the substrate-inhibitor-ratio (SIR)
sir_full Parameters of the seawater carbonate system including the substrate-inhibitor-ratio (SIR) - extension of carb
sp2sa_chem From Practical to absolute salinity
sp2sa_geo From practical to absolute salinity
speciation ionic forms as a function of pH
teos2eos_chem Convert temperature and salinity from TEOS-10 to EOS-80
teos2eos_geo Convert temperature and salinity from TEOS-10 to EOS-80
theta Potential temperature of seawater
tris pH of TRIS buffer
vapress Computes vapor pressure of seawater
x2pCO2 Converts mole fraction to partial pressure of CO2