A computer program for calculating frequencies and modal structure of free coastal-trapped waves

Abstract

A listing and full documentation is presented for a FORTRAN computer program which computes the dispersion curves and across-shelf modal structures of free coastal-trapped waves in a coastal channel. The three velocity components, mass transport streamfunction, and density and pressure perturbation fields are .computed. The solution procedure used (horizontal finite differences on a staggered grid and an expansion in the vertical in terms of modified Chebyshev polynomials) makes the solution compatible (without interpolation) with the numerical scheme employed in the Haidvogel et al. (1988) primitive equation ocean circulation model.