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seacarb (version 2.4.8)

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 and James Rae

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Version

Install

install.packages('seacarb')

Monthly Downloads

1,179

Version

2.4.8

License

GPL (>= 2)

Maintainer

Jean-Pierre Gattuso

Last Published

March 8th, 2013

Functions in seacarb (2.4.8)

Dissociation constant of ammonium (mol/kg)

Converts depth in meters to pressure in dbar

Pressure correction of equilibrium constants

Perturbation of the seawater carbonate system

Second dissociation constant of carbonic acid (mol/kg)

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

pH value of the TRIS buffer

Molar ratio of CO2 released vs CaCO3 precipitated

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

seacarb_test_P0

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

Total boron concentration (mol/kg)

Second dissociation constant of phosphoric acid (mol/kg)

Coefficients used for pressure-correcting the equilibrium constants

Parameters of the seawater carbonate system

variable for internal use

Carbonate saturation state for magnesian calcites

Conversion of pH

Conversion factors to change the pH scale of dissociation constants

Slope of the calibration curve of a pH electrode

Third dissociation constant of phosphoric acid (mol/kg)

Solubility product of aragonite (mol/kg)

Stability constant of hydrogen sulfate (mol/kg)

Calculates total alkalinity from potentiometric titration data

Potentiometric pH

Henry's constant mol/(kg/atm)

Solubility product of calcite (mol/kg)

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

First dissociation constant of phosphoric acid (mol/kg)

First dissociation constant of carbonic acid (mol/kg)

Ion product of water (mol2/kg2)

Dissociation constant of boric acid (mol/kg)

Converts the CO2 fugacity to CO2 partial pressure

Converts pressure in dbar to depth in meters

Equilibrium constant of hydrogen fluoride (mol/kg)

pH at in situ temperature

pH value of the AMP buffer

ionic forms as a function of pH

Density of seawater (kg/m3)

Dissociation constant of hydrogen sulfide (mol/kg)

Example data file for function at

Buffer parameters of the seawater carbonate system

Dissociation constant of Si(OH)4

seacarb_test_P300

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