The examination of surge-tide interaction at two ports on the central south coast of England |
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| Authors: | AT Walden P Prescott NB Webber |
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| Institution: | 1. Department of Civil Engineering, University of Southampton, Southampton S09 5NH Great Britain;2. Faculty of Mathematical Studies, University of Southampton, Southampton S09 5NH Great Britain |
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| Abstract: | When only a few years of sea level observations are available to the coastal engineer concerned with the design and maintenance of coastal defences at a location, a method other than that of annual maxima analysis must be used for the estimation of the frequency of occurrence of exceptional high sea levels. The most attractive and suitable method is that of joint surge-tide probability analysis. Negligible surge-tide interaction at the location enables the simplest kinds of joint probability methods to be applied and investigated, but, if the tide and surge components cannot be regarded as independent, it does entail computations of increasing complexity and length whilst of diminishing accuracy. It is shown how a detailed tide and interaction analysis for two major ports in close proximity can reveal substantial differences in interaction behaviour and hence the applicability of joint probability methods. |
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