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seacarb (version 2.4.4)

seawater carbonate chemistry with R

Description

Calculates parameters of the seawater carbonate system. Code and/or corrections were contributed by Andreas Andersson, Jean-Marie Epitalon, Bernard Gentili, Andreas Hofmann, Jim Orr, Aurelien Proye and Karline Soetaert

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Version

Install

install.packages('seacarb')

Monthly Downloads

1,179

Version

2.4.4

License

GPL (>= 2)

Maintainer

Jean-Pierre Gattuso

Last Published

June 29th, 2012

Functions in seacarb (2.4.4)

Example data file for function at

Third dissociation constant of phosphoric acid (mol/kg)

Second dissociation constant of phosphoric acid (mol/kg)

Dissociation constant of Si(OH)4

Equilibrium constant of hydrogen fluoride (mol/kg)

Converts depth in meters to pressure in dbar

Carbonate saturation state for magnesian calcites

Dissociation constant of ammonium (mol/kg)

pH value of the AMP buffer

Coefficients used for pressure-correcting the equilibrium constants

Buffer parameters of the seawater carbonate system

seacarb_test_P300

Test data file (at P=300) to test the use of the carb function

Ion product of water (mol2/kg2)

Density of seawater (kg/m3)

Second dissociation constant of carbonic acid (mol/kg)

Conversion factors to change the pH scale of dissociation constants

pH at in situ temperature

Total boron concentration (mol/kg)

First dissociation constant of phosphoric acid (mol/kg)

Conversion of pH

Perturbation of the seawater carbonate system

Test data file to test the use of the carb function

Stability constant of hydrogen sulfate (mol/kg)

Parameters of the seawater carbonate system

Buffer capacities of the seawater carbonate system as defined by Egleston et al. (2010)

Converts the CO2 fugacity to CO2 partial pressure

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

Solubility product of calcite (mol/kg)

Converts pressure in dbar to depth in meters

Henry's constant mol/(kg/atm)

Molar ratio of CO2 released vs CaCO3 precipitated

seacarb_test_P0

Test data file (at P=0) to test the use of the carb function

Parameters of the seawater carbonate system, in case of artificial addition of boron

Slope of the calibration curve of a pH electrode

Dissociation constant of boric acid (mol/kg)

Pressure correction of equilibrium constants

Dissociation constant of hydrogen sulfide (mol/kg)

pH value of the TRIS buffer

Solubility product of aragonite (mol/kg)

Potentiometric pH

First dissociation constant of carbonic acid (mol/kg)

Calculates total alkalinity from potentiometric titration data

ionic forms as a function of pH