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streamDepletr

streamDepletr is an R package with functions for assessing the impacts of groundwater pumping on streams. There are two primary categories of functions:

• Analytical streamflow depletion models, which estimate the change in groundwater inputs to a stream resulting from pumping (hunt, glover, hantush, intermittent_pumping)
• Depletion apportionment equations, which distribute streamflow depletion estimating using the analytical models to different reaches within a stream network (apportion_inverse, apportion_web, apportion_polygon, apportion_wedge)
• Data preparation functions to prepare inputs for the analytical models and depletion apportionment equations (depletion_max_distance, prep_reach_dist, streambed_conductance)

Combined, these functions will allow the user to estimate the impacts of an existing or proposed well (or group of wells) on individual stream reaches within a stream network.

Installation

You can install streamDepletr from CRAN: install.packages("streamDepletr")

Alternately, you can use devtools to install the development version:

devtools::install_github("FoundrySpatial/streamDepletr", build_vignettes=T)

Example

Calculate and plot streamflow depletion as a fraction of the pumping rate (Qf) over the 100 days of pumping:

require(streamDepletr)
#> Loading required package: streamDepletr

# calculate depletion fraction
Qf <- glover(t  = seq(1,100),     # timesteps to evaluate
             d  = 150,            # well to stream distance
             S  = 0.10,           # specific yield
             Tr = 50*1e-5*86400)  # 50 m thick aquifer with hydraulic conductivity of 1e-5 m/s

# plot
plot(seq(1,100), Qf, type="l", xlab="Time [days]", ylab="Qf, Streamflow Depletion Fraction")

For more examples, please check out the package vignette:

browseVignettes("streamDepletr")

Package Development

streamDepletr was developed by Foundry Spatial Ltd. and the University of Victoria with support from the National Sciences and Engineering Research Council of Canada.

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.
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