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Chemical evidence for the origin of the cold water belt along the northeastern coast of Hokkaido

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Title: Chemical evidence for the origin of the cold water belt along the northeastern coast of Hokkaido
Authors: Kuma, Kenshi Browse this author →KAKEN DB
Sasayama, Ryohei Browse this author
Hioki, Nanako Browse this author
Morita, Yuichiroh Browse this author
Isoda, Yutaka Browse this author
Hirawake, Tohru Browse this author
Imai, Keiri Browse this author
Aramaki, Takafumi Browse this author
Nakamura, Tomohiro Browse this author →KAKEN DB
Nishioka, Jun Browse this author →KAKEN DB
Ebuchi, Naoto Browse this author →KAKEN DB
Keywords: Cold water belt
Okhotsk Sea
Japan Sea
Chemical components
Hydrographic data
Issue Date: Aug-2014
Publisher: Springer
Journal Title: Journal of Oceanography
Volume: 70
Issue: 4
Start Page: 377
End Page: 387
Publisher DOI: 10.1007/s10872-014-0239-3
Abstract: In the southwestern Okhotsk Sea, the cold water belt (CWB) is frequently observed on satellite images offshore of the Soya Warm Current flowing along the northeastern coast of Hokkaido, Japan, during summertime. It has been speculated that the CWB is upwelling cold water that originates from either subsurface water of the Japan Sea off Sakhalin or bottom water of the Okhotsk Sea. Hydrographic and chemical observations (nutrients, humic-type fluorescence intensity, and iron) were conducted in the northern Japan Sea and southwestern Okhotsk Sea in early summer 2011 to clarify the origin of the CWB. Temperature-salinity relationships, vertical distributions of chemical components, profiles of chemical components against density, and the (NO3 + NO2)/PO4 relationship confirm that water in the CWB predominantly originates from Japan Sea subsurface water.
Rights: The final publication is available at
Type: article (author version)
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: 久万 健志

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