期刊
JOURNAL OF OCEANOGRAPHY
卷 69, 期 3, 页码 285-293出版社
SPRINGER
DOI: 10.1007/s10872-013-0173-9
关键词
Kuroshio; Kuroshio Extension; Recirculation; IES; Satellite altimetry; Volume transport
类别
资金
- Ministry of Education, Culture, Sports, Science and Technology (MEXT) [22106007]
- Grants-in-Aid for Scientific Research [22106007] Funding Source: KAKEN
The volume transport of the Kuroshio, the western boundary current of the North Pacific subtropical gyre, varies vigorously due to merging of disturbances propagating from the entire North Pacific. Taking into account the recirculation in the Shikoku Basin by the zonal observation line at 30A degrees N to the west of the Izu-Ogasawara Ridge, we estimated the volume transport in the top 1,000 m layer toward the Kuroshio Extension region. The volume transport of the local recirculation gyre in the Shikoku Basin increases associated with the westward extension of the gyre, particularly in the period of the large meandering path of the Kuroshio south of Japan. Meanwhile, most of the transport variations toward the Kuroshio Extension region correspond to those of the Kuroshio transport on the continental slope south of Japan, which vary independently of those of the recirculation gyre.
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