MISC

2007年2月

Warming and oxygen decrease of intermediate water in the northwestern North Pacific, originating from the Sea of Okhotsk, 1955-2004

GEOPHYSICAL RESEARCH LETTERS
  • Takuya Nakanowatari
  • ,
  • Kay I. Ohshima
  • ,
  • Masaaki Wakatsuchi

34
4
開始ページ
L04602
終了ページ
記述言語
英語
掲載種別
DOI
10.1029/2006GL028243
出版者・発行元
AMER GEOPHYSICAL UNION

On the basis of all available data, it is found that intermediate water temperature on the 26.8 - 27.4 sigma(theta) isopycnals in the northwestern North Pacific has significantly increased during the past 50 years. The largest warming area exists in the western part of the Sea of Okhotsk with a 0.68 degrees C/50-yr temperature increase observed at 27.0 sigma(theta). The warming in the Pacific is found over the Oyashio and Subarctic Current regions, where the Okhotsk water extends along the subarctic gyre. This suggests that the warming originates from the Sea of Okhotsk. The warming trend is also accompanied by the significant decreasing trend of dissolved oxygen content, suggesting the weakening of overturning in the northwestern North Pacific. We propose that these trends of the water mass property are caused by a decrease in dense shelf water production in the northwestern shelf of the Sea of Okhotsk, which is a sensitive area to the current global warming.

Web of Science ® 被引用回数 : 70

リンク情報
DOI
https://doi.org/10.1029/2006GL028243
CiNii Resolver ID
http://ci.nii.ac.jp/nrid/9000239248799
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000244362100002&DestApp=WOS_CPL