Ocean and Polar Research

Korea Institute of Ocean Science & Technology (한국해양과학기술원)
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Changes in the Tsushima Warm Current and the Impact under a Global Warming Scenario in Coupled Climate Models

기후모델에 나타난 미래기후에서 쓰시마난류의 변화와 그 영향

  • Choi, A-Ra (Ocean Circulation and Climate Research Division, KIOST) ;
  • Park, Young-Gyu (Ocean Circulation and Climate Research Division, KIOST) ;
  • Choi, Hui Jin (Ocean Circulation and Climate Research Division, KIOST)
  • 최아라 (한국해양과학기술원 해양순환.기후연구부) ;
  • 박영규 (한국해양과학기술원 해양순환.기후연구부) ;
  • 최희진 (한국해양과학기술원 해양순환.기후연구부)
  • Received : 2013.04.05
  • Accepted : 2013.05.30
  • Published : 2013.06.30
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Abstract

In this study we investigated changes in the Tsushima Warm Current (TWC) under the global warming scenario RCP 4.5 by analysing the results from the World Climate Research Program's (WCRP) Coupled Model Intercomparison Project Phase 5 (CMIP5). Among the four models that had been employed to analyse the Tsushima Warm Current during the 20th Century, in the CSIRO-Mk3.6.0 and HadGEM2-CC models the transports of the Tsushima Warm Current were 2.8 Sv and 2.1 Sv, respectively, and comparable to observed transport, which is between 2.4 and 2.77 Sv. In the other two models the transports were much greater or smaller than the observed estimates. Using the two models that properly reproduced the transport of the Tsushima Warm Current we investigated the response of the current under the global warming scenario. In both models the volume transports and the temperature were greater in the future climate scenario. Warm advection into the East Sea was intensified to raise the temperature and consequently the heat loss to the air.

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References

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