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contributor authorQu, Tangdong
contributor authorMitsudera, Humio
contributor authorQiu, Bo
date accessioned2017-06-09T14:54:46Z
date available2017-06-09T14:54:46Z
date copyright2001/09/01
date issued2001
identifier issn0022-3670
identifier otherams-29518.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4166754
description abstractTime-averaged structure of the Kuroshio/Oyashio system east of Japan was examined using historical hydrographic data. Unlike most of the earlier climatological analyses, the data were averaged along isopycnal rather than pressure surfaces in a 0.5° ? 0.5° grid. As a result, most of the detailed phenomena associated with the narrow western boundary currents were revealed. Water from the Oyashio is seen to overshoot the zero zonally integrated wind-stress-curl line by more than 5°, approaching as far south as 36°?38°N at the western boundary. Water from the Kuroshio Extension, by contrast, tends to feed into the Oyashio Front in the interior ocean. This exchange of waters leads to a zero of zonally integrated (western boundary?180°) meridional transport at about 44°N, reasonably coinciding with the zero of zonally integrated wind stress curl in the western North Pacific. A well-defined double-front structure is seen at depths of the thermocline, but it does not appear to have a strong signature in the surface dynamic topography. Though always accompanied by strong temperature and salinity gradients, water density changes little across the Oyashio Front near the surface. Both the Kuroshio Extension and Oyashio Front have a significant deep component, but below 1000 m the former seems to be dominated by eddy features associated with the Kuroshio Extension recirculation gyre.
publisherAmerican Meteorological Society
titleA Climatological View of the Kuroshio/Oyashio System East of Japan
typeJournal Paper
journal volume31
journal issue9
journal titleJournal of Physical Oceanography
identifier doi10.1175/1520-0485(2001)031<2575:ACVOTK>2.0.CO;2
journal fristpage2575
journal lastpage2589
treeJournal of Physical Oceanography:;2001:;Volume( 031 ):;issue: 009
contenttypeFulltext


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