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Modification of a Kenai eddy along the Alaskan Stream

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Title: Modification of a Kenai eddy along the Alaskan Stream
Authors: Ueno, Hiromichi Browse this author →KAKEN DB
Yasuda, Ichiro Browse this author
Itoh, Sachihiko Browse this author
Onishi, Hiroji Browse this author →KAKEN DB
Hiroe, Yutaka Browse this author
Suga, Toshio Browse this author
Oka, Eitarou Browse this author
Issue Date: 25-Aug-2012
Publisher: American Geophysical Union
Journal Title: Journal of Geophysical Research, Oceans
Volume: 117
Issue: C8
Start Page: C08032
Publisher DOI: 10.1029/2011JC007506
Abstract: A Kenai eddy was studied through analyses of satellite altimeter data and hydrographic data from shipboard and Argo float observations. This eddy formed in December 2006 south of the Kenai Peninsula and propagated southwestward along the Alaskan Stream. The eddy held horizontally uniform warm core water in January 2007. In late winter 2007, this core water was cooled from the top and a subsurface temperature maximum was formed around 26.5 σθ. Two years later in summer 2009, warm and low-dissolved-oxygen (low-DO) water characterized by a temperature maximum around 26.5 σθ was observed again in the eddy core and was likely the remnant of original core water. At the same time, cold and high-DO water intrusions occurred in the eddy core, suggesting that strong modification of core water was ongoing. After summer 2009, the core water was fully changed through interaction with another eddy.
Rights: ©2012 American Geophysical Union
Type: article
URI: http://hdl.handle.net/2115/52029
Appears in Collections:水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 上野 洋路

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