Numerical Simulation of the Cretaceous Tethys Circumglobal Current

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Science  07 Feb 1997:
Vol. 275, Issue 5301, pp. 807-810
DOI: 10.1126/science.275.5301.807

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Certain paleobiogeographical reconstructions of ocean currents during the Cretaceous (about 144 to 65 million years ago) suggest that a circumglobal tropical current flowed westward through the continental configuration of that time. Although some numerical climate models failed in initial attempts to simulate this current, simulations with a coupled atmosphere-ocean model with relatively high spatial resolution and a late Cretaceous continental distribution show that a circumglobal current is a robust feature even though local surface currents in the Tethys Seaway reverse during the south Eurasian monsoon months.

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