A02-3 Ocean mixing in the sub-polar marginal seas and biogeochemical dynamics in the western North Pacific

   Research Summary

The goal of our group is to understand the dynamics of nutrients (including N, P, Si and Fe) and their induced biological production in the western North Pacific. We plan to perform keen international collaborations from ocean observations to the data analyses. Our target areas include the southern Sea of Okhotsk and the western Bering Sea, and are potential “Hot Spots” where strong mixing generates a remarkable increase in nutrient availability in surface waters. For establishing accurate 3D nutrient dynamic images, we are going to investigate the nutrient horizontal transport processes from these “Hot Spots” to the western North Pacific by using chemical tracers. Physical and biogeochemical processes controlling the 3D nutrient dynamic will be quantitatively analyzed with the estimates of primary production obtained from satellite ocean color remote sensing. This will allow us to well understand the processes that sustain biological production in the western North Pacific.

 

 

 

 

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Principal investigator : Jun Nishioka
(Hokkaido University⋅Institute of Low Temperature Science⋅Associate Professor⋅Chemical Oceanography)

 

 

 

 

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Co-investigator : Hajime Obata
(The University of Tokyo⋅Atmosphere and Ocean Research Institute⋅Associate Professor⋅Marine Geochemistry)

 

 

 

 

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Co-investigator: Toru Hirawake
(Hokkaido University⋅Faculty of Fisheries Sciences⋅Associate Professor⋅Satellite Oceanography)

 

 

 

 

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Collaborator : Koji Suzuki
(Hokkaido University⋅Faculty of Environmental and Earth Science⋅Associate Professor⋅Biological Oceanography)

 

 

 

 

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Co-investigator: Hirofumi Tazoe
(Hirosaki University⋅Institute of Radiation Emergency Medicine⋅Assistant Professor⋅Chemical Oceanography)

 

 

 

 

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Collaborator : Humio Mitsudera
(Hokkaido University⋅Institute of Low Temperature Science⋅Professor⋅Physical Oceanography)

 

 

 

 

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Collaborator : Youhei Yamashita
(Hokkaido University⋅Faculty of Environmental and Earth Science⋅Associate Professor⋅Marine Biogeochemistry)

 

 

 

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Collaborator: Taejin Kim

(The University of Tokyo⋅Atmosphere and Ocean Research Institute⋅postdoctoral fellow⋅Marine Inorganic Chemistry )

 

 

 

 

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Collaborator : Takeshi Yoshimura
(Hokkaido University⋅Faculty of Fisheries Sciences⋅Associate Professor⋅Chemical Oceanography)

 

 

 

 

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Joint Cooperator : Yutaka Watanabe
(Hokkaido University⋅Faculty of Environmental and Earth Science⋅Associate Professor⋅Chemical Oceanography)