Research Interests 【 display / non-display 】

Research Interests 【 display / non-display 】

Research Areas 【 display / non-display 】

Research Areas 【 display / non-display 】

Papers 【 display / non-display 】

Papers 【 display / non-display 】

• Vertical Expansion of Aragonite Undersaturated Waters in the Canada Basin of the Arctic Ocean From 2003 to 2019

  Yamamoto-Kawai, M., H. Tsujimoto, Y. Zhang, S. Zimmermann, W. Williams , 2025.02

  Journal of Geophysical Research: Oceans

• Hydrographic section along 55°E in the Indian and Southern oceans

  Katsuro Katsumata, Shigeru Aoki, Kay I. Ohshima, and Michiyo Yamamoto-Kawai , 2025.02

  Ocean Science

  DOI

• 日本沿岸域における海洋酸性化の現状

  川合美千代，藤井賢彦，石津美穂，脇田昌英 , 2024.11

  地球環境

• How Much Can Riverine Biogeochemical Fluxes Affect the Arctic Ocean Acidification?

  Zhang, Y., M. Yamamoto-Kawai, E. Watanabe, and H. Park , 2024.06

  Journal of Geophysical Research-Oceans

  DOI

• Circumpolar distributions of age and anthropogenic CO2 content of Antarctic Bottom Water revealed by chlorofluorocarbon and sulfur hexafluoride

  Ohashi, Y., Yamamoto-Kawai, M., Kusahara, K., Sasaki, K. I., & Ohshima, K. I. , 2023.12

  Progress in Oceanography

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Books 【 display / non-display 】

Books 【 display / non-display 】

• 北域の研究 その現状と将来構想

  北極環境研究コンソーシアム 著者一同 , 2024.03

  海文堂出版 , p68－69，P75

• 海の温暖化

  日本海洋学会編 , 2017.08

  朝倉出版 , 3.5 北極海における物質循環の変化 , 59-61

• 低温環境の科学事典

  川合美千代 , 2016.08

  朝倉書店 , 3-3. 極域海洋の酸性化 , 78-79

• Arctic-Subarctic Ocean Fluxes: Defining the role of the northern seas in climate

  Carmack, E. C., F. A. McLaughlin, M. Yamamoto-Kawai, M. Itoh, K. Shimada, R. Krishfield and A. Proshutinsky , 2008.09

  Springer , Freshwater storage in the northern ocean and the special role of the Beaufort Gyre , 145-169

Grant-in-Aid for Scientific Research 【 display / non-display 】

Grant-in-Aid for Scientific Research 【 display / non-display 】

• Arctic ocean acidification and its impact on marine organism

  Project Period (FY)： 2019/04  -  2022/03  Investigator(s): 川合 美千代

  Grant-in-Aid for Scientific Research(C)  Principal Investigator  19K03970 

• Circulation dynamics of heat, freshwater, and material originating from Antarctic Bottom Water

  Project Period (FY)： 2017/06  -  2022/03  Investigator(s): 大島 慶一郎

  Grant-in-Aid for Scientific Research on Innovative Areas (Planned Research)  Co-Investigator  17H06317 

• Evaluation of ocean acidification impacts at Japan coast water and fisheries

  Project Period (FY)： 2015/04  -  2019/03  Investigator(s): KURIHARA Haruko

  Grant-in-Aid for Scientific Research(B)  Co-Investigator  15H04536 

  We first developed a framework for ocean acidification monitoring at coastal water of Japan covering from high to low latitude regions, and we made a year-round observation of seawater pH, SST, salinity, alkalinity and dissolved organic carbon (DIC). As a result, we found that the seawater pH shows strong seasonal fluctuation over 0.2-0.4, and the fluctuation was regionally specific. From future modelling it was predicted that the seawater at coast of Hokkaido will become under-saturated for whole winter with the increase of seawater pCO2. Meanwhile, for the sea urchins it was found that low latitude species show less tolerance to ocean acidification and global warming.

• 北極海表層の窒素栄養塩の時間変動とその要因の解明

  Project Period (FY)： 2014/04  -  2017/03 

  Grant-in-Aid for Scientific Research(B)  Principal Investigator  26281004 

• マルチトレーサーによる北極海の酸性化に関する定量的研究

  Project Period (FY)： 2011/06  -  2014/03 

  Grant-in-Aid for Young Scientists(A)  Principal Investigator  23681002 

Lesson Subject 【 display / non-display 】

Lesson Subject 【 display / non-display 】