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http://dx.doi.org/10.14191/Atmos.2021.31.5.607

Future Projection of Extreme Climate over the Korean Peninsula Using Multi-RCM in CORDEX-EA Phase 2 Project  

Kim, Do-Hyun (Climate Change Research Team, National Institute of Meteorological Sciences)
Kim, Jin-Uk (Climate Change Research Team, National Institute of Meteorological Sciences)
Byun, Young-Hwa (Climate Change Research Team, National Institute of Meteorological Sciences)
Kim, Tae-Jun (Climate Change Research Team, National Institute of Meteorological Sciences)
Kim, Jin-Won (Climate Change Research Team, National Institute of Meteorological Sciences)
Kim, Yeon-Hee (Innovative Meteorological Research Department, National Institute of Meteorological Sciences)
Ahn, Joong-Bae (Department of Atmospheric Science, Pusan National University)
Cha, Dong-Hyun (Department of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology)
Min, Seung-Ki (Division of Environmental Science and Engineering, Pohang University of Science and Technology)
Chang, Eun-Chul (Department of Atmospheric Science, Kongju National University)
Publication Information
Atmosphere / v.31, no.5, 2021 , pp. 607-623 More about this Journal
Abstract
This study presents projections of future extreme climate over the Korean Peninsula (KP), using bias-corrected data from multiple regional climate model (RCM) simulations in CORDEX-EA Phase 2 project. In order to confirm difference according to degree of greenhouse gas (GHG) emission, high GHG path of SSP5-8.5 and low GHG path of SSP1-2.6 scenario are used. Under SSP5-8.5 scenario, mean temperature and precipitation over KP are projected to increase by 6.38℃ and 20.56%, respectively, in 2081~2100 years compared to 1995~2014 years. Projected changes in extreme climate suggest that intensity indices of extreme temperatures would increase by 6.41℃ to 8.18℃ and precipitation by 24.75% to 33.74%, being bigger increase than their mean values. Both of frequency indices of the extreme climate and consecutive indices of extreme precipitation are also projected to increase. But the projected changes in extreme indices vary regionally. Under SSP1-2.6 scenario, the extreme climate indices would increase less than SSP5-8.5 scenario. In other words, temperature (precipitation) intensity indices would increase 2.63℃ to 3.12℃ (14.09% to 16.07%). And there is expected to be relationship between mean precipitation and warming, which mean precipitation would increase as warming with bigger relationship in northern KP (4.08% ℃-1) than southern KP (3.53% ℃-1) under SSP5-8.5 scenario. The projected relationship, however, is not significant for extreme precipitation. It seems because of complex characteristics of extreme precipitation from summer monsoon and typhoon over KP.
Keywords
Extreme climate; future projection; the Korean Peninsula; CORDEX-EA Phase 2; multi-RCM;
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