RIS ID
28795
Abstract
A hybrid model incorporating process and system modelling characteristics has been developed and applied to the evolution of a theoretical estuary with a small lake basin, partially enclosed by a barrier with an entrance open to the sea. The one-dimensional model is capable of modelling changes in sedimentation both spatially and temporally and hence, tracks changes in crosssection dimensions along the estuary. The model structure is a series of linked modules to solve the hydrodynamics, the sediment transport equation and a distribution of the sediment to bed and bank. An evolution simulation was conducted for a generic coastal lagoon over an approximate time span of 2000 years with the simplifying assumption of regular sediment supply from the catchment. A further assumption is present for the depositional module in that the distribution is affected by the operation of an attractor state governed by river regime relationships.
Included in
Life Sciences Commons, Physical Sciences and Mathematics Commons, Social and Behavioral Sciences Commons
Publication Details
Gould, O., Hinwood, J. B. & McLean, E. J. (2009). A hybrid approach to estuary modelling. In R. S. Anderssen, R. D. Braddock & L. TH. Newham (Eds.), Congress of the Modelling and Simulation Society of Australia and New Zealand (pp. 1844-1850). Canberra: Modelling and Simulation Society of Australia and New Zealand and International Association for mathematics and Computers in Simulation.