北海道大学水産科学研究彙報 = Bulletin of Fisheries Sciences, Hokkaido University;第69巻 第2号

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日本海東部海域における高塩分中層水

松岡, 翔太;方, 暁蓉;磯田, 豊

Permalink : http://hdl.handle.net/2115/76382
JaLCDOI : 10.14943/bull.fish.69.2.71
KEYWORDS : Japan Sea;High-Salinity Intermediate Water (Smax-IW),;hydrographic data, acceleration potential

Abstract

To understand the formation area of High-Salinity Intermediate Water (Smax-IW) with a density of more than 27.3 σθ in the Japan Sea and its transport path, historical hydrographic data from winter to spring and Conductivity-Temperature-Depth (CTD) data by the Japan Meteorological Agency in 2009 are examined. Spatial distributions of salinity and acceleration potential on the 27.33 σθ surface suggest that Smax-IW flows southwestward from the subarctic area north of the polar front, where Smax-IW outcrops and has an opportunity to become denser by direct winter cooling.

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