Package website https://modche.github.io/delayedflow/
1. Hydrological background
The delayedflow package in R is developed to perform a delayed-flow separation using streamflow data only. Commonly daily data is used. The package is based on the publication from Stoelzle et al. (2020) where common binary baseflow separation into quick- and baseflow is advanced by the DFI (Delayed Flow Index) to quantify multiple delayed contributions to streamflow. Normally 3-4 delayed contributions are separated by this method.
Specifically, the R package performs:
- DFI separations with variable block length N (baseflow separation has fixed N = 5 days)
- Estimation of n breakpoint(s)
- Quantification of relative streamflow contributions [0,1] in different delay classes
- Couple of minor analyses
2. Package installation
The delayedflow package is in beta testing now. It is not available on CRAN.
# ----- use package in R -----
#install.packages("devtools")
devtools::install_github("modche/delayedflow")3. Vignette / Manual
Website with package documentation
Some example workflows are given in the Articles section.
# ----- get help in R after installation -----
help(package = "delayedflow")3. Reporting issues
Please report any issue you have with the package on
https://github.com/modche/delayedflow/issues
This is especially helpful to eliminate bugs and improve the functionality of the package.
4. References
Stoelzle, M., Schuetz, T., Weiler, M., Stahl, K., & Tallaksen, L. M. (2020). Beyond binary baseflow separation: a delayed-flow index for multiple streamflow contributions. Hydrology and Earth System Sciences, 24(2), 849-867, https://hess.copernicus.org/articles/24/849/2020/.
Baseflow function based on the lfstat package. https://cran.r-project.org/web/packages/lfstat/index.html