Date of Award

Fall 1984

Document Type


Degree Name

Master of Science (MS)


Ocean & Earth Sciences



Committee Director

Chester E. Grosch

Committee Member

Donald R. Johnson

Committee Member

William D. Lakin

Call Number for Print

Special Collections LD4331.O35S63


A method is developed to model the circulation of a barotropic, 8-plane ocean under an imposed steady wind stress. The model includes the effect of both horizontal and vertical friction along with nonlinear advection of vorticity. Implementing the method involves solving the unsteady quasigeostrophic potential-vorticity equation using a compact finite difference scheme (Gatski, Grosch, and Rose, 1982).

Once developed, this model is used in four separate numerical experiments. In each experiment, a model ocean with an initial flow field is driven to a steady state solution. Vertical viscosity is held constant in the first three experiments while lateral viscosity is decreased for each experiment. In the fourth experiment, vertical viscosity is relaxed while lateral viscosity is held constant.

Results show westward intensification in each of the experiments. Rossby waves appear to form in the north-west region of the computational domain in the less viscous fourth experiment.


In Copyright. URI: This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).



Included in

Oceanography Commons