Hi All,
My understanding of the rainfall forcing function is that it applies uniform rainfall over the polygon provided… How could one change this so ANUGA can accept spatially varying rainfall in a netCDF file.
Is it possible now? Is it easy to update?
cheers
Nick
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As far as I remember, you might be able to apply the rainfall using file_function, i.e. using the same functionality you use to set initial conditions.
See e.g. p 51 in the manual. This shows the example with a .tms timeseries file, but it may work with sww as well.
Otherwise, it would be a matter of creating many polygons across the domain each with their own rainfall profile. This would amount to a piecewise constant spatially varying rainfall profile. I think this is what the flood modellers currently do: Have a polygon representing each rainfall gauge.
If you need a smooth surface of rainfall and if it doesn't already work with sww files, then raise a ticket in the system and start lobbying for someone to implement that :-)
Hope this helps a little
Cheers
Ole
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Hi All,
My understanding of the rainfall forcing function is that it applies uniform rainfall over the polygon provided… How could one change this so ANUGA can accept spatially varying rainfall in a netCDF file.
Is it possible now? Is it easy to update?
cheers
Nick
As far as I remember, you might be able to apply the rainfall using file_function, i.e. using the same functionality you use to set initial conditions.
See e.g. p 51 in the manual. This shows the example with a .tms timeseries file, but it may work with sww as well.
Otherwise, it would be a matter of creating many polygons across the domain each with their own rainfall profile. This would amount to a piecewise constant spatially varying rainfall profile. I think this is what the flood modellers currently do: Have a polygon representing each rainfall gauge.
If you need a smooth surface of rainfall and if it doesn't already work with sww files, then raise a ticket in the system and start lobbying for someone to implement that :-)
Hope this helps a little
Cheers
Ole