d13carbulate

This package calculates the δ¹³C values for all dissolved carbonate species within a water sample (CO2_(aq), HCO₃^-, and CO₃^2-) from pH, total DIC concentration, water temperature, and concentrations of the carbonate species. Check out the other package carbulate to calculate concentrations for all dissolved carbonate species (from DIC, pH, and water temperature).

Installation

library(devtools)
devtools::install_github("biogeochem/d13carbulate")

Parameters

d13carbulate(dat, temp_col_C, d13C_DIC_col, DIC_col_mg.L, CO3_col_uM, HCO3_col_uM, CO2_col_uM)

dat - Your dataframe with values
temp_col_C - Name of column with your measured water temperature (in Celsius)
d13C_DIC_col Name of column with your d13C of DIC (per mille PDB)
DIC_col_mg.L Name of column that contains your measured dissolved inorganic carbon concentration (mg C/L)
CO3_col_uM - Name of column that contains your measured/calculated carbonate concentrations (umol C/L)
HCO3_col_uM - Name of column that contains your measured/calculated bicarbonate concentrations (umol C/L)
CO2_col_uM - Name of column that contains your measured/calculated dissolved carbon dioxide concentrations (umol C/L)

Example

This is how you would input this function to add the carbonate species to the dataframe water.dat:

water.dat <- d13carbulate(water.dat, 'Temp_C', 'd13C_DIC_permille', 'DIC_mgC.L', 'calc_CO3_uM', 'calc_HCO3_uM', 'calc_CO2_uM')