Anthony J. Bowen, Sally J. Pinless


A one-dimensional numerical model was used to estimate the location and volumes of water flooding over the banks of the Thames Estuary under several combinations of bank levels and possible storm surges. An assessment of the probable damage resulting from each of these floods enabled a comparison to be made between the various possible schemes for bank improvement and, indeed, showed that there was a serious need for such improvement even though a start on the construction of the Thames Barrier was imminent. In an estuary such as the Thames the overflow may provide a significant turn in the continuity equation and the effect must therefore be programmed as an integral part of the model; one obvious effect of the overspill is to limit the maximum levels to about 0.2 m above the banks in the upper Thames, almost irrespective of the size of the surge.


bank raising; Thames

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