riverbed is a package which is intended to facilitate the calculation of surfaces and volumes described with topological profiles (such as river long profiles or river transects)
For now there is no stable version of this package on CRAN. If you want to install the dev version, make sure you have a very recent version of R (>3.5.0) and run:
if(!require(devtools)){install.packages("devtools")}
devtools::install_github("lvaudor/riverbed")
You can access the documentation regarding package riverbed on this site
To have a general overview of the use of this package please see vignette:
vignette("riverbed")