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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 >

Long-term ocean acidification trends in coastal waters around Japan

This item is licensed under:Creative Commons Attribution 4.0 International

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The file(s) associated with this item can be obtained from the following URL: https://doi.org/10.1038/s41598-021-84657-0


Title: Long-term ocean acidification trends in coastal waters around Japan
Authors: Ishida, Hiroshi Browse this author
Isono, Ryosuke S. Browse this author
Kita, Jun Browse this author
Watanabe, Yutaka W. Browse this author →KAKEN DB
Issue Date: 3-Mar-2021
Publisher: Nature Research
Journal Title: Scientific reports
Volume: 11
Issue: 1
Start Page: 5052
Publisher DOI: 10.1038/s41598-021-84657-0
Abstract: This study examines long-term ocean pH data to evaluate ocean acidification (OA) trends at two coastal research institutions located on the Sea of Japan and the Pacific Ocean. These laboratories are located away from the influences of large rivers and major industrial activity. Measurements were performed daily for the past 30 years (1980s-2010s). The average annual ocean pH for both sites showed generally negative trends. These trends were - 0.0032 and - 0.0068 year(-1) (p<0.001) at the Sea of Japan and Pacific Ocean sites, respectively. The trends were superimposed onto approximately 10-year oscillations, which appear to synchronize with the ocean current periodicity. At the Sea of Japan site, the ocean pH in the summer was higher, and the rate of OA was higher than during other seasons. Our results suggest that seasonality and ocean currents influence OA in the coastal areas of open oceans and can affect the coastal regions of marginal seas.
Rights: https://creativecommons.org/licenses/by/4.0/
Type: article
URI: http://hdl.handle.net/2115/81211
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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