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Deriving the relationship among discharge, biomass and Manning's coefficient through a calibration approach
De Doncker, L.; Troch, P.; Verhoeven, R.; Buis, K. (2011). Deriving the relationship among discharge, biomass and Manning's coefficient through a calibration approach. Hydrol. Process. 25(12): 1979-1995. dx.doi.org/10.1002/hyp.7978
In: Hydrological processes. Wiley & Sons: Chichester, Sussex, England. ISSN 0885-6087; e-ISSN 1099-1085
Peer reviewed article  

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Author keywords
    calibration; environmental engineering; flood routing; vegetated rivers

Auteurs  Top 
  • De Doncker, L.
  • Troch, P.
  • Verhoeven, R.
  • Buis, K.

Abstract
    The subject of environmental engineering is currently of great interest. Field experiments as well as numerical models have proven their worth in this research field. An introduction to hydrodynamic modelling, coupled to the modelling of vegetation biomass is described. The developed Strive (STream RIVer Ecosystem) model is set up in the Femme (‘Flexible Environment for Mathematically Modelling the Environment’) environment and has already proven its worth in a large number of calculations (De Doncker et al., 2006, 2008b). Discharges and water levels are modelled together with modelling of electrical conductivity (EC). Extensive measurement campaigns are carried out to collect a large number of observations and calibration of the model is based on this data set. Furthermore, calibration methods and the discussion of this process are displayed. As a result, it is seen that the developed Strive model can model both, hydrodynamic and ecological processes, in an accurate way. The work highlights the importance of detailed determination of Manning's coefficient, dependent on discharge and amount of biomass, as an important calibration parameter for accurate modelling.

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