Generation of Small Meanders of the Kuroshio South of Kyushu in a High-Resolution Ocean General Circulation Model |
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| Authors: | Yukio Masumoto |
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| Institution: | (1) Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan |
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| Abstract: | The generation of small meanders of the Kuroshio south of Kyushu has been investigated using a high-resolution ocean general
circulation model of the North Pacific Ocean. The small cyclonic meander develops in the region east of the Tokara Strait
with a period of about one month, then propagates downstream along the Kuroshio path to the longitude of the Kii Peninsula,
which is similar to the so-called trigger meanders for the formation of the large-meander of the Kuroshio south of Japan.
It turns out that the generation of the small meander is a local phenomenon, strongly associated with anticyclonic eddies
that propagate northeastward along the Kuroshio path in the East China Sea. The vorticity balance indicates that the accumulation
of positive vorticity during the developing phase of the small meander occurs mainly from the balance between the stretching
and the advection terms.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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| Keywords: | Kuroshio small meander meso-scale eddy high-resolution OGCM |
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