Author(s)

A.M. Oakes, N.V.M. Odd, A.J. Copper & W. Roberts

Abstract

The dispersion of treated effluent by tide and wind in a stratified bay A.M. Oakes, N.V.M. Odd, A.J. Copper, W. Roberts HR Wallingford, Howbery Park, Wallingford, Oxfordshire ABSTRACT The paper describes how 3D modelling techniques were used to simulate the interaction of tide and wind on circulations in St Andrews Bay in Scotland, which has a weak but well defined halocline at mid depth caused by the inflow from the River Tay. INTRODUCTION Fife Regional Council (FRC) intend to embark on a program of capital works to provide a new sewage treatment plant south of the town of St Andrews on the east coast of Scotland, Figure 1. In order to demonstrate that the proposed sewage treatment and disposal options meet Environmental Quality Objectives and Standards, FRC commissioned the preparation of marine hydrodynamic and bacterial dispersion models of St Andrews Bay. In vertically well mixed coastal waters, the standard method of predicting the physical d

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