Identify a hydrological catchment based on a single direction flow algorithm
subcatch(DEM,outlet)
A binary matrix of the same size as DEM
.
A matrix representing a digital elevation model [m] with equally sized pixels and equal x and y resolution
A vector containing the row and column indices of the pixel representing the catchment outlet.
Wouter Buytaert, Imperial College London, based on an implementation from the Hydrology Group of Lancaster University
See https://github.com/ICHydro/topmodel for examples.
topmodel