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adc

adc provides functions to calculate discharge-based metrics that are useful in water quality concentration and flux regression equations.

Installation

Install adc from CRAN:

install.packages('adc')

The development version is available on https://txwri.r-universe.dev/adc and can be installed with:

install.packages('adc', repos = c(txwri = 'https://txwri.r-universe.dev'))

Example

Flow anomalies represent how different the current discharge period is (current day, current week, current month, etc.) from previous periods (previous week, previous month, period of record, etc.).

library(adc)
## example code is lavaca and includes dates and mean daily flow

data(lavaca)

x <- fa(lavaca$Flow,
        dates = lavaca$Date,
        T_1 = "1 month",
        T_2 = "1 year",
        clean_up = TRUE,
        transform = "log10")

plot(lavaca$Date, x, type = "l", xlab = "Date", ylab = "Anomaly [unitless]")

The packages also includes functions to calculate an exponentially weighted discounted flow, base-flow, and rate of change for mean daily streamflow. Functions generally work well using the dplyr::mutate() function to facilitate tidy workflows.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.