The speed of currents at the ocean surface simulated with a three-dimensional global ocean model devel- 

 oped for the Thinking Machines CI\/l-2 and CM-5 at Los Alamos National Laboratory. High speeds are in 

 red, low in blue. Eddies are evident In the Gulf Stream along the east coast of North America and in the 

 tropics. The spatial resolution of the computer model is 0.5 degrees in latitude and longitude with 20 verti- 

 cal levels: realistic ocean bottom topography is used. The work was jointly sponsored by the HPCC and the 

 DOE CHAI\/IMP (Computer Hardware. Advanced f\/lathematics, and Model Physics) Program. 



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