The near-global hydrodynamical model is set up as a reduced gravity model with four active upper layers in the upper 1000 m and an infinitely deep layer of constant density below. The average thickness of the four active layers are 80 m, 120 m, 250 m and 600 m.
A moderately high horizontal resolution of 1/4 by 1/4 deg is used and the model domain covers the area from 60 S to 60 N.
A 30 year integration with monthly winds from ECMWF climatology
was done.
Below is the Layer 2 thickness:
Currents are mainly along lines of constant layer thickness anomaly and shows the major current systems in the world ocean.
South of Africa, the Agulhas retroflection is modelled nicely in this simulation:
The model runs on 30-CPUs on a SGI Origin 2000 with a sustained rate of over 1.5 Gflops.
This work is supported by Frontier Research System for Global Change and by U.S. Dept of Energy
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Tommy G. Jensen tjensen@hawaii.eduLast update: December 1, 1999