process_chem: Process chem data for calcs

In WDNR-Water-Use/CSLSchem: CSLS Water Chemistry Analysis

Description

Processes concentrations of parameters (e.g., d18O, Magnesium, Calcium) for use in water/solute balances. Filters CSLSdata::water_chem to specified parameter, limits to lake, precipitation, and upgradient groundwater sites, and interpolates to a daily timestep.

Usage

process_chem(parameter, start_date, end_date, dt = "day", use_kniffin = TRUE)

Arguments

parameter	description of parameter to use in analysis, as in CSLSdata::water_chem$description (e.g., "d18O", "MAGNESIUM TOTAL RECOVERABLE")
start_date	start date of analysis period (POSIX).
end_date	end date of analysis period (POSIX).
dt	time step at which to summarize data. Defaults to "day" for daily time step, can also be "month" for monthly time step.
use_kniffin	logical defaults to TRUE to use kniffin precip stable isotope data (only when stable isotopes selected as the paramter)

Details

If using with non-CSLS data, will need an alternate way to get solute/isotope concentrations into the format outputted by this function.

Value

df, a data frame with the following columns:

lake	name of lake, i.e., "Pleasant", "Long", and "Plainfield"
date	date of observation (POSIX). If monthly time step, monthly means are assigned to first day of the month
C_lake	concentration in the lake (units in per mil, mg/L, or whatever unit parameter has in CSLSdata::water_chem)
C_pcpn	concentration in precipitation (units in per mil, mg/L, or whatever unit parameter has in CSLSdata::water_chem)
C_GWin	concentration in upgradient groundwater (units in per mil, mg/L, or whatever unit parameter has in CSLSdata::water_chem)

WDNR-Water-Use/CSLSchem documentation built on July 3, 2020, 10:51 a.m.