Implementation of analytical models for estimating streamflow
depletion due to groundwater pumping, and other related tools. Functions
are broadly split into two groups: (1) analytical streamflow depletion
models, which estimate streamflow depletion for a single stream reach
resulting from groundwater pumping; and (2) depletion apportionment
equations, which distribute estimated streamflow depletion among multiple
stream reaches within a stream network. See Zipper et al. (2018)