caa a22 4500 465811272 CHVBK 20180323112116.0 cr unu---uuuuu 170327e19900401xx s 000 0 eng 10.1007/BF02124815 doi (NATIONALLICENCE)springer-10.1007/BF02124815 Kawabe Masaki Ocean Research Institute, University of Tokyo, Minamidai 1-15-1, Nakano-ku, 164, Tokyo, Japan aut A steady model of typical non-large-meander paths of the Kuroshio Current [Elektronische Daten] [Masaki Kawabe] Conditions south of Cape Shiono-misaki for the nearshore and offshore non-large-meander (NLM) paths of the Kuroshio Current are studied using a two-layer reduced gravity model. A steady and non-diffusive state is assumed, and the conservation laws of Bernoulli's function and potential vorticity along the current axis are used. Spatial changes of velocity and depth of the current are imposed as boundary conditions south of Cape Shiono-misaki. These conditions are based on the facts that are ohserved south of the cape: abrupt acceleration of the Kuroshio and the spatial change of sea levels. The current paths east of the cape are computed. This model reproduces well the actual nearshore NLM paths. It also produces offshore NLM paths west of and over the Izu Ridge, but not east of the Izu Ridge. Diffusion of vorticity may be important for the eastern part of the offshore NLM path. An increase of velocity south of the cape is necessary for producing realistic NLM paths. The velocity increase accompanies a decrease of current depth owing to Bernoulli's conservation, and the depth decrease in turn diminishes the absolute vorticity owing to the potential vorticity conservation. The velocity increase, on the other hand, strengthens the negative velocity shear and diminishes the relative vorticity. If the decreases of the relative and absolute vorticities compensate each other, the path goes excessively southward owing to the negative curvature south of the cape. Dominance of the relative vorticity change over the absolute vorticity change prevents, the path from shifting southward and causes the realistic NLM paths. The NLM paths need different amplitudes of the changes south of the cape depending on the velocity and transport of the current, but in any case, the nearshore NLM path needs larger changes than the offshore NLM path. This property and the amplitude of the changes are consistent with observations. Oceanographical Society of Japan, 1989 Journal of the Oceanographical Society of Japan Kluwer Academic Publishers 46/2(1990-04-01), 55-67 0029-8131 46:2<55 1990 46 10872 https://doi.org/10.1007/BF02124815 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02124815 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Kawabe Masaki Ocean Research Institute, University of Tokyo, Minamidai 1-15-1, Nakano-ku, 164, Tokyo, Japan aut NATIONALLICENCE 773 0- Journal of the Oceanographical Society of Japan Kluwer Academic Publishers 46/2(1990-04-01), 55-67 0029-8131 46:2<55 1990 46 10872 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer