Generate and analyze Optimal Channel Networks (OCNs):
oriented spanning trees reproducing all scaling features characteristic
of real, natural river networks. As such, they can be used in a variety
of numerical experiments in the fields of hydrology, ecology and
epidemiology. See Carraro et al. (2020)
for a presentation of the package; Rinaldo et al. (2014)
for a theoretical overview on the OCN
concept; Furrer and Sain (2010) for the
construct used.