Generation of Tidal Current and Height Charts for Narragansett Bay Using a Numerical Model,

摘要

A series of tidal current and height charts were prepared for Narragansett Bay,Rhode Island,using a numerical model. The format of these charts is designed to allow the recreational user to easily determine the tidal currents and height at any location and time. The numerical model used is two dimensional,vertically averaged, multioperation,alternating direction implicit finite difference scheme. To facilitate the use of the charts a 10year tide table was constructed from the tidal height data. The tidal height and velocity data were presented in a series of 13hourly charts referenced to high water at Newport,Rhode Island covering one complete tidal cycle. To assist users in interpreting the charts a digitized outline of Narraganset Bay was created. In addition,the islands,towns,and points were labeled on the plotted outline.