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A linear, barotropic numerical model that features realistic bathymetry of the Scotian Shelf provides solutions forced by steady and periodic wind stress that are generally incoherent on spatial scales of the shelf width. Closed circulation cells occur in dation with, and on the scales of, major bathymetric features. Bathymetrically steered now is prevalenf and more evident at lower frequencies. Model transport forced by a coastally trapped wave propagating across the backward boundary is not sensitive to the modal structure of the incident wave; bathymetry rapidly modifies the wave form as it propagates in the free diredon. Higher modes and reflected waves are probably dissipated over short distances by scattering and strong bottom stress. Patterns seen in the model solutions are consistent with resulu from more fundamental models, and are readily explained by relatively simple vorticity balances. Model results generally reproduce the diverse local and nonld velocity responses obmved on the Scotian Shelf during winter. The model is more effective in accounting for the remote contribution to circulation. Wmd- forced results generally reflect the observed dinctional variability, and an similar in magnitude to obswvations inside the 1Wm &bath but underestimate the actual cmnt response at deeper stations. It is speculated that spatial variability in wind stress, an effect not addressed in this work, may be responsible for some of this difference. The significance of baroclinic effects in deeper water, which cannot be discounted, is also beyond the scope of this model. Nevertheless, the fairly good agreement between the model and observed cumcat responses to local and nonld forcing confirms the importance of bathymetric modifications to Scotian Shelf circulation at subtidal frequencies.

Subtidal Response of Scotian Shelf Circulation to Local and Remote Forcing. Part II: Barotropic Model