[A-CG44] Biogeochemical linkages between the surface ocean and atmosphere

Thu. Jun 3, 2021 3:30 PM - 5:00 PM Ch.10 (Zoom Room 10)

convener:Sohiko Kameyama(Hokkaido University), Yoko Iwamoto(Graduate School of Integrated Sciences for Life, Hiroshima University), Noguchi Maki Aita(Japan Agency for Marine-Earth Science and Technology), Daisuke Sasano(Japan Meteorological Agency), Chairperson:Sohiko Kameyama(Hokkaido University)

Multi-scale vertical and horizontal ocean mixing processes can strongly influence the distribution of dissolved and suspended substances including macro- and micro-nutrients, and may impact on the global carbon cycles. The changes in nutrient dynamics generally affect the abundance, composition and metabolic activity of marine organisms such as phytoplankton and bacteria during the bloom. Marine phytoplankton can produce volatile organic compounds (VOCs) and marine atmospheric aerosols, which strongly influence on atmospheric chemistry. Primary and secondary organic and inorganic components produced via marine phytoplankton activity can contribute to the Earth's radiative forcing, and in turn marine ecosystems including biogeochemical processes directly or indirectly. Therefore, the biogeochemical cycles have a tight linkage between the ocean and the atmosphere. In order to understand physical, chemical and biological processes relevant to phytoplankton bloom formation in the ocean, dynamics of VOCs and marine aerosols in the atmosphere, and the biogeochemical linkage between the ocean and the atmosphere, we welcome new interdisciplinary presentations and active discussions on physical, chemical, and biological sciences both from ocean and atmospheric fields in this session. Studies linked to the Surface Ocean-Lower Atmosphere Study (SOLAS) project are good examples, but other related studies are also invited.

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3:30 PM - 3:45 PM

[ACG44-01] R/V Mirai cruise for IMPACT-SEA project 2021: Preliminary results

*Fumikazu Taketani¹, Kana Nagashima¹, Minoru Kitamura¹ (1.Japan Agency for Marine-Earth Science and Technology)

3:45 PM - 4:00 PM

[ACG44-02] Seasonal and interannual variations of surface water carbonate chemistry in the Indian sector of the Southern Ocean

*Manami Tozawa¹, Daiki Nomura^1,2,3, Shin-ichiro Nakaoka⁴, Masaaki Kiuchi¹, Daisuke Hirano⁵, Shigeru Aoki⁵, Hiroko Sasaki⁶, Hiroto Murase⁷ (1.Faculty of Fisheries Sciences, Hokkaido University, 2.Field Science Center for Northern Biosphere, Hokkaido University, 3.Arctic Research Center, Hokkaido University, 4.National Institute for Environmental Studies, 5.Institute of Low Temperature Science, Hokkaido University, 6.Fisheries Resources Institute, Japan Fisheries Research and Education Agency, 7.Tokyo University of Marine Science and Technology )

4:00 PM - 4:15 PM

[ACG44-03] Summer carbonate chemistry near the Totten Ice Shelf, Sabrina Coast, East Antarctica

*Tetsuya Tamura¹, Daiki Nomura^1,2,3, Daisuke Hirano^3,4, Takeshi Tamura⁵, Masaaki Kiuchi¹, Gen Hashida⁵, Shigeru Aoki⁴, Hiroko Sasaki⁶, Hiroto Murase⁷ (1.Faculty of Fisheries Science, Hokkaido University, 2.Field Science Center for Northern Biosphere, 3.Arctic Research Center, 4.Institute of Low Temperature Science, 5.National Institute of Polar Research, 6.Fisheries Resources Institute, Japan Fisheries Research and Education Agency, 7.Tokyo University of Marine Science and Technology)

4:15 PM - 4:30 PM

[ACG44-04] Iodomethane and Iodoethane distributions in coastal seawater of subarctic Pacific and Northern Bering sea

*Atsushi Ooki¹, Keita Minamikawa¹, Fanxing Meng¹ (1.Hokkaido University)

4:30 PM - 4:45 PM

[ACG44-05] Effects of marine nitrogen fixation on the formation of atmospheric water-soluble organic nitrogen revealed by a laboratory incubation experiment

*Tsukasa Dobashi^1,2, Koji Suzuki², Yuzo Miyazaki¹ (1. Institute of Low Temperature Science, Hokkaido Univ., 2.Graduate School of Env. Sci., Hokkaido Univ.)

4:45 PM - 5:00 PM

[ACG44-06] Characterization of Adhesivity of marine organic aerosols by atomic force microscopy

*Kohei Ono¹, Ayumi Iwata², Takeshi Fukuma³, Yoko Iwamoto⁴, Koji Hamasaki⁵, Atsushi Matsuki⁶ (1.Graduate School of Natural Science and Technology, Kanazawa University, 2.Faculty of Science and Technology, Keio University, 3.Nano Life Science Institute, Kanazawa University, 4.Graduate School of Integrated Sciences for Life, Hiroshima University, 5.Atmosphere and Ocean Research Institute, The University of Tokyo, 6.Institute of Nature and Environmental Technology, Kanazawa University)

Session information