Youngeun CHOI, Konkuk University, Korea (Republic of)
Eungul LEE, Kyung Hee University, Korea (Republic of)
Sookjoo MIN, Konkuk University, Korea (Republic of)
Inhye HEO, Konkuk University, Korea (Republic of)
Jieun OH, Kyung Hee University, Korea (Republic of)
Jiho MYEONG, Konkuk University, Korea (Republic of)
Heesoo MOON, Konkuk University, Korea (Republic of)
Doyoung LEE, Konkuk University, Korea (Republic of)
According to IPCC (2001), although the decadal variability and variations in solar and volcanic drivers partially might mask human-caused warming during 1998-2012, the global climate system continued to be heated, especially for the rise of hot extremes over land. Changes in climate and climatic impact drivers (CIDs) including extremes need to be assessed to provide better regional climate change information for adaptation and mitigation strategies at the regional level. Climatic impact drivers are physical climate system conditions that affect socioeconomic systems or ecosystems and can be represented quantitatively and/or qualitatively as means, ranges, extremes of climate change indicators. CIDs and their changes can be partially beneficial, neutral, or mostly harmful for the existing systems. The purpose of this study is to assess the change and future projection of important CID types for the Republic of Korea (ROK) including hot and cold, wet and dry, wind, coastal and open oceans. The changes of annual and seasonal mean temperature-related CIDs between 1981-2010 and 1991-2020 were mostly positive from 90.3% of stations for winter to 97. 2% for annual and spring. The change of mean highest maximum temperature (TXx) and lowest minimum temperatures (TNn) were positive for 86.1 and 81.9% of stations, respectively. These increasing trends of temperature fields affected in the lengthening of summer seasons and the expansion of subtropical climate regions in the future projection under recent high emission scenarios. The changes of precipitation-related CIDs between 1981-2010 and 1991-2020 were spatially less consistent and complicated. The change of annual mean precipitation was negative for 56.9% of stations due to distinct decrease of summer rainfall. The changes of spring and fall mean precipitation were positive for 62.5% of stations for both seasons while the change of winter mean precipitation was negative 55.6% of stations.
Keywords: Climate Change Information|Climate Impact Drivers (CIDs)|Future Projections|Extremes|Republic of Korea
A103638YC