Ocean Science Journal

, Volume 53, Issue 3, pp 437–448 | Cite as

Acidification at the Surface in the East Sea: A Coupled Climate-carbon Cycle Model Study

  • Young-Gyu Park
  • Kyung-Hee Seol
  • Kyung-On Boo
  • Johan Lee
  • Chunho Cho
  • Young-Hwa Byun
  • Seongbong Seo


This modeling study investigates the impacts of increasing atmospheric CO2 concentration on acidification in the East Sea. A historical simulation for the past three decades (1980 to 2010) was performed using the Hadley Centre Global Environmental Model (version 2), a coupled climate model with atmospheric, terrestrial and ocean cycles. As the atmospheric CO2 concentration increased, acidification progressed in the surface waters of the marginal sea. The acidification was similar in magnitude to observations and models of acidification in the global ocean. However, in the global ocean, the acidification appears to be due to increased in-situ oceanic CO2 uptake, whereas local processes had stronger effects in the East Sea. pH was lowered by surface warming and by the influx of water with higher dissolved inorganic carbon (DIC) from the northwestern Pacific. Due to the enhanced advection of DIC, the partial pressure of CO2 increased faster than in the overlying air; consequently, the in-situ oceanic uptake of CO2 decreased.


biogeochemical modeling surface pH East Sea ocean acidification 


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Copyright information

© Korea Institute of Ocean Science & Technology (KIOST) and the Korean Society of Oceanography (KSO) and Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  • Young-Gyu Park
    • 1
    • 2
  • Kyung-Hee Seol
    • 3
  • Kyung-On Boo
    • 4
  • Johan Lee
    • 4
  • Chunho Cho
    • 4
  • Young-Hwa Byun
    • 4
  • Seongbong Seo
    • 1
    • 2
  1. 1.Physical Oceanography DivisionKIOSTBusanKorea
  2. 2.Department of Integrated Ocean ScienceUniversity of Science & TechnologyDaejeonKorea
  3. 3.Forecast DivisionKorea Institute of Atmospheric Prediction SystemsSeoulKorea
  4. 4.National Institute of Meteorological SciencesKorea Meteorological AdministrationSeogwipoKorea

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