Future Extreme Climate Analysis of Jeju Using Climate Change Scenario and ETCCDI Index

According to the fifth IPCC report, artificial greenhouse gases are at their highest level since they were first observed, and climate change is expected have a significant impact on ecosystem, necessitating response from Korea. For purpose of this study, Jeju Island was selected as target area; annual average precipitation region exhibited 10% increase 1,780 mm in 1991 1,961 2019; temperature increased by 0.3 ℃ over 10 years 1961 2019. There three weather stations (Jeju, Seogwipo, Seongsan) Mt. Halla, which 1,950 m above sea level; among these stations, Island's patterns most atypical. The World Meteorological Organization’s (WMO) Expert Team Climate Change Detection Indices (ETCCDI) for extreme analysis used 8 27 indexes that closely related climate. purposes, existing RCP 8.5 scenario data categorized as: past (data analyzed 2019), future 2020 2100). analysis, Observatory recorded its 25 while exhibiting an increasing trend, Seongsan, less than 0 more 40 days 1996. scenario, number hot Jeju, Seongsan increasing, but frost has converged zero with progression second half 21st century. Japan's chart shows spike compared other regions. Thus, study highlights necessity considering characteristics each observatory, implementation urban planning disaster prevention measures.