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Department of Civil
and Environmental
Engineering
Spring 2017
Infiltration Routine in
the HBV Model
Supervisor:
Knut Alfredsen
Even Nyhus
Background
Increased stormwater runoff is a growing
issue for urban areas. To be able to handle
the problem, better hydrological tools for
dimensioning stormwater systems are needed.
TheHBVmodel is well known for good estimates
on natural catchments. To make the model
perform better for urban areas with impervious
surfaces and modified soils, an implementation
of an infiltration routine is suggested.
Green-Ampt with a redistribution modification
for rainfall hiatuses is suggested as a basis for
the routine. The routine will be coded in C++ and
Python so that it will work with the HBV model
already existing in SHyFT.
When the code is ready, simulations will be done
for a test field. Further, a comparison between
the HBV model as it is today and the HBV model
with an infiltration routine will decide how well it
performs and how to improve it.
MASTER THESIS