Catchment delineation is a fundamental data processing step in almost every analysis related to hydrology and water resources. A common approach is to use a stand-alone GIS package to perform the delineations, which can hinder the development of integrated, reproducible workflows. The CSHShydRology project has developed functions that allow an analyst to run WhiteboxTools functions from within an R script. WhiteboxTools is a free and open-source package developed by the Geomorphometry and Hydrogeomatics Research Group at University of Guelph. The application of these functions will be illustrated in the context of a comparison of catchment delineations for the Upper Penticton Creek experimental catchments based on field surveys, the Canadian Digital Elevation Model (DEM) and a Lidar DEM.
