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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Environmental Science / Faculty of Environmental Earth Science >
Peer-reviewed Journal Articles, etc >

Shelf humic substances as carriers for basin-scale iron transport in the North Pacific

This item is licensed under:Creative Commons Attribution 4.0 International

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Title: Shelf humic substances as carriers for basin-scale iron transport in the North Pacific
Authors: Yamashita, Youhei Browse this author →KAKEN DB
Nishioka, Jun Browse this author →KAKEN DB
Obata, Hajime Browse this author →KAKEN DB
Ogawa, Hiroshi Browse this author →KAKEN DB
Issue Date: 11-Mar-2020
Publisher: Nature Publishing Group
Journal Title: Scientific Reports
Volume: 10
Start Page: 4505
Publisher DOI: 10.1038/s41598-020-61375-7
Abstract: Iron is one of the key elements controlling phytoplankton growth in large areas of the global ocean. Aeolian dust has traditionally been considered the major external source of iron in the North Pacific. Recent studies have indicated that sedimentary iron from the shelf region of the Sea of Okhotsk has a strong impact on the iron distribution in the North Pacific, while the mechanism supporting its long-distance transport remains poorly understood. Here, we report that refractory shelf humic substances, which complex and carry dissolved iron, are transported conservatively at least 4000km from the shallow sediments of the Sea of Okhotsk to the subtropical North Pacific with the circulation of intermediate water. This result indicates that shelf humic substances are probably one of the key factors shaping the distribution of dissolved iron in the ocean interior.
Rights: http://creativecommons.org/licenses/by/4.0/
Type: article
URI: http://hdl.handle.net/2115/79464
Appears in Collections:環境科学院・地球環境科学研究院 (Graduate School of Environmental Science / Faculty of Environmental Earth Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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