sinkfill {topmodel} | R Documentation |
Fill sinks in a digital elevation model
Description
Removes sinks in a digital elevation model by filling depressions
Usage
sinkfill(DEM,res,degree)
Arguments
DEM |
A matrix representing a digital elevation model [m] with equally sized pixels and equal x and y resolution |
res |
Resolution of the digital elevation model [m] |
degree |
Minimum slope to be kept between cells when filling [degrees] |
Details
For deep sinks or large maps, it may be possible that not all sinks are filled in one run. Then the function should be applied repeatedly over the same object.
Value
A matrix of the same size as the DEM.
Author(s)
Wouter Buytaert, Imperial College London, based on an implementation from the Hydrology Group of Lancaster University
References
See https://github.com/ICHydro/topmodel for examples.
See Also
topmodel, topidx
Examples
data(huagrahuma.dem)
filled.dem <- sinkfill(huagrahuma.dem, 25, 0.1)
[Package topmodel version 0.7.5 Index]