Wind- and Wave-Driven Nearshore Current Model, the One-Dimensional Model

摘要

A model to calculate the longshore component of currents resulting from winds and waves is described. The model is one-dimensional in the sense that it calculates variables at a number of grid points along a line normal to shore. The user of the model must supply the depth at each grid point along the line; a wave height, period, and mean direction at the seaward end of the line; and the wind speed and direction. The model then calculates the steady-state free surface elevation, longshore and cross-shore current, and wave height and direction at each grid point. Input parameters are described, and a sample application is provided. The model is intended for use where a quick but accurate estimate of the longshore current at an unobstructed, relatively straight shoreline is needed. For more complicated coastal configurations, a two-dimensional model is recommended. (Author)