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Hirotaka Otobe Keisuke Taira Shoji Kitagawa Tomio Asai Kimio Hanawa 《Journal of Oceanography》2003,59(5):619-627
The heat balance of the surface layer in the vicinity of the former Ocean Weather Station “Tango” (OWS-T; 29°N, 135°E), where
a large amount of heat is transported by the Kuroshio and transferred to the atmosphere, was studied by during Ocean Mixed
Layer Experiment (OMLET) as an oceanographic component of the Japanese World Climate Research Program (1987–1991). Temperature
and velocity in the upper ocean measured using a surface moored buoy system deployed by the Ocean Research Institute, the
University of Tokyo, in total 668 days of four time series namely the periods of April 1988–November 1988 (OMELET-88), August
1989–February 1990 (OMLET-89), April 1990–September 1990 (OMLET-901) and September 1990–January 1991 (OMLET-902). We have
analyzed the moored buoy data of the upper 100 m for the latter three time series (OMLET-89, -901 and -902) and here we discuss
the heat balance of the upper 100 m, in combination with surface heat flux and oceanographic data provided by the Japan Meteorological
Agency. A large fluctuation of oceanic heat convergence/divergence of 200–300 W/m2 in amplitude with predominant period of 20–30 days occurred in the first half of OMLET-89 period, which was just the early
stage in the formation process of a large meander path of the Kuroshio. A large amount of heat convergence of 71 and 79 W/m2 on average was detected in observation period of OMLET-89 and -901, respectively. During OMLET-902, relatively small heat
convergence of 13 W/m2 was obtained. It is suggested that these variations of oceanic heat convergence in this region were closely related to the
fluctuation of the Kuroshio axis to the south of Japan.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
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