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Korean Meteorological Society (한국기상학회)
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The Recent Climatic Characteristic and Change in the Republic of Korea based on the New Normals (1991~2020)

신평년(1991~2020년)에 기반한 우리나라 최근 기후특성과 변화에 관한 연구

  • Hongjun Choi (Climate Research Institute, Konkuk University) ;
  • Jeongyong Kim (Climate Research Institute, Konkuk University) ;
  • Youngeun Choi (Department of Geography, Konkuk University) ;
  • Inhye Hur (Climate Research Institute, Konkuk University) ;
  • Taemin Lee (Department of Geography, Konkuk University) ;
  • Sojung Kim (Department of Geography, Konkuk University) ;
  • Sookjoo Min (Climate Research Institute, Konkuk University) ;
  • Doyoung Lee (Department of Geography, Konkuk University) ;
  • Dasom Choi (Climate Change Monitoring Division, Climate Science Bureau, Korea Meteorological Administration) ;
  • Hyun Min Sung (Climate Change Research Team, National Institute of Meteorological Science) ;
  • Jaeil Kwon (Research Institute, 4D Solution)
  • 최홍준 (건국대학교 기후연구소) ;
  • 김정용 (건국대학교 기후연구소) ;
  • 최영은 (건국대학교 지리학과) ;
  • 허인혜 (건국대학교 기후연구소) ;
  • 이태민 (건국대학교 지리학과) ;
  • 김소정 (건국대학교 지리학과) ;
  • 민숙주 (건국대학교 기후연구소) ;
  • 이도영 (건국대학교 지리학과) ;
  • 최다솜 (기상청 기후변화감시과) ;
  • 성현민 (국립기상과학원 기후변화예측연구팀) ;
  • 권재일 ((주)포디솔루션 기업부설연구소)
  • Received : 2023.08.01
  • Accepted : 2023.09.20
  • Published : 2023.11.30
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Abstract

Based on the new climate normals (1991~2020), annual mean, maximum and minimum temperature is 12.5℃, 18.2℃, and 7.7℃, respectively while annual precipitation is 1,331.7 mm, the annual mean wind speed is 2.0 m s-1, and the relative humidity is 67.8% in the Republic of Korea. Compared to 1981~2010 normal, annual mean temperature increased by 0.2℃, maximum and minimum temperatures increased by 0.3℃, while the amount of precipitation (0.7%) and relative humidity (1.1%) decreased. There was no distinct change in annual mean wind speed. The spatial range of the annual mean temperature in the new normals is large from 7.1 to 16.9℃. Annual precipitation showed a high regional variability, ranging from 787.3 to 2,030.0 mm. The annual mean relative humidity decreased at most weather stations due to the rise in temperature, and the annual mean wind speed did not show any distinct difference between the new and old normals. With the addition of a warmer decade (2011~2020), temperatures all increased consistently and in particular, the increase in the maximum temperature, which had not significantly changed in previous decades, was evident. The increasing trend of annual and summer precipitation by the 2010s has disappeared in the new normals. Among extreme climate indices, MxT30 (Daily maximum temperature ≥ 33℃ days), MnT25 (Daily minimum temperature ≥ 25℃ days), and PH30 (1 hour maximum precipitation ≥ 30 mm days) increased while MnT-10 (Daily minimum temperature < -10℃ days) and W13.9 (Daily maximum wind speed ≥ 13.9 m/s days) decreased at a statistically significant level. It is thought that a detailed study on the different trends of climate elements and extreme climate indices by region should be conducted in the future.

Keywords

Acknowledgement

본 논문의 개선을 위해 좋은 의견을 제시해 주신 두 분의 심사위원께 감사를 드립니다. 이 연구는 기상청 「기후 및 기후변화 감시·예측 정보 응용 기술개발사업」 (KMI2021-00911)의 지원으로 수행되었습니다.

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