Synoptic flow structures in the confluence region of the Kuroshio and the Ryukyu Current

Akira Nagano, Kaoru Ichikawa, Hiroshi Ichikawa, Masanori Konda, Kiyoshi Murakami

doi:10.1029/2008jc005213

Synoptic flow structures in the confluence region of the Kuroshio and the Ryukyu Current

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Akira Nagano

Japan Agency for Marine‐Earth Science and Technology Yokosuka Japan
Kaoru Ichikawa

Japan Agency for Marine‐Earth Science and Technology Yokosuka Japan
Hiroshi Ichikawa

Japan Agency for Marine‐Earth Science and Technology Yokosuka Japan
Masanori Konda

Japan Agency for Marine‐Earth Science and Technology Yokosuka Japan
Kiyoshi Murakami

Nagasaki Marine Observatory Japan Meteorological Agency Nagasaki Japan

書誌事項

公開日: 2009-06

権利情報

http://onlinelibrary.wiley.com/termsAndConditions#vor

DOI

10.1029/2008jc005213

公開者: American Geophysical Union (AGU)

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説明

<jats:p>In the southeastern region of Kyushu, Japan, the Kuroshio from the East China Sea encounters the Ryukyu Current from the east of the Ryukyu Islands. By analyzing synoptic sections of water properties and geostrophic velocity in August 2004 and October 2005, we distinguished the waters in the Kuroshio southeast of Kyushu to be separated into an offshore region and a shallow onshore one. The onshore water is derived from the East China Sea, while the offshore water originates from both the east of Amami‐Oshima Island and the interior region of the North Pacific. The water mass transport from the east of Amami‐Oshima Island may become equivalent to that of the Kuroshio in the East China Sea as in October 2005. The volume transport–averaged temperature of the Kuroshio southeast of Kyushu is significantly lower than that in the East China Sea because of the confluence with the colder Ryukyu Current east of the Amami‐Oshima Island.</jats:p>