EVALUATING DATA CONSTRAINTS ON 2-DIMENSIONAL FINITE-ELEMENT MODELS OF FLOODPLAIN FLOW

A prototype two dimensional finite element model for the simulation of flood flows is presented. This is shown to have significant advantages over other methods of flow simulation for compound meandering channels, such as the ability to predict dynamic inundation zones. In particular, this paper demonstrates that reasonable predictions may be obtained on the basis of extremely sparse data sets, such as topographic maps and available flow monitoring records. Finally, a more rigourous method of determining the most suitable modelling approach in a given situation is called for.