Low-frequency variations of the Eastern Subtropical Front in the North Pacific in an eddy-resolving ocean general circulation model: roles of central mode water in the formation and maintenance     

Shusaku Sugimoto  Kimio Hanawa  Tamaki Yasuda  Goro Yamanaka 《Journal of Oceanography》2012,68(4):521-531

Temporal variations (1960–2005) of the Eastern Subtropical Front (ESTF) in the North Pacific are investigated using historical-run output data of the eddy-resolving Meteorological Research Institute Community Ocean Model, forced by atmospheric reanalysis dataset. Simulated ESTF is distributed in a region of zonal band of 24°N–30°N east of the International Date Line, and is located at the southern boundary of the central mode water (CMW) north of the front. The ESTF intensity clearly shows an interdecadal variation with a timescale of about 20?years. This variation is associated with that in the potential vorticity of CMW, which originates in the CMW formation region farther north about 3?years earlier due to changes in the surface wind forcing.  相似文献   

Relationship between the path of the Kuroshio in the south of Japan and the path of the Kuroshio Extension in the east   总被引：2，自引：0，他引：2  

Shusaku Sugimoto  Kimio Hanawa 《Journal of Oceanography》2012,68(1):219-225

A relationship between paths of the Kuroshio and Kuroshio Extension (KE) is investigated, using the satellite-derived altimetry dataset of 1993–2008. When the Kuroshio takes the nearshore nonlarge meander path or typical large meander path and resultantly goes through the deeper channel (about 2500 m) of the Izu-Ogasawara Ridge, the KE path adopts a relatively stable state with the two quasi-stationary meanders. On the other hand, when the Kuroshio takes the offshore nonlarge meander path and then passes over the shallower part of the Ridge (about 1000 m), the KE path tends to be convoluted, i.e., an unstable state.  相似文献   

An introduction to the Beyond El Niño conference: climate variability and marine ecosystem impacts from the tropics to the Arctic     

S. M. McKinnell  R. D. Brodeur  K. Hanawa  A. B. Hollowed  J. J. Polovina  C. -I. Zhang 《Progress in Oceanography》2001,49(1-4)

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