Property:Describe numerical limitations
From CSDMS
This is a property of type Text.
H
As the size of the DEM increases, processing time will increase. An 8000*8000 DEM will take several days to process. Documentation is available to help users select appropriate input parameters. +
B
S
C
F
At the present I am trying to improve the wetting and drying algorithm, unphysical large velocities are sometime produced at the wet/dry front. +
B
S
Becomes very slow if run on domains with pits. Options include filling pits before running the model, or using the Landlab DepressionFinderAndRouter. +
G
Catchment must be small enough that it can be approximated as being flat. +
A
Code is research grade +
P
Code is research grade +
G
Concerns about extrapolations beyond range of data used for model calibration and parameterization. +
W
Q
G
Currently only shallow water equations are solved, using explicit finite volume methods. High order Boussinesq equations to better model dispersive waves (e.g. for short wavelength submarine landslide generated tsunamis) would require implicit time stepping and is still in the experimental phase. +
E
D8 flow codes are used to compute contributing areas. Would be better to use D-Infinity or the Mass-Flux method. +
L
P
C
G
