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

최홍준; 김정용; 최영은; 허인혜; 이태민; 김소정; 민숙주; 이도영; 최다솜; 성현민; 권재일

doi:10.14191/atmos.2023.33.5.477

신평년(1991~2020년)에 기반한 우리나라 최근 기후특성과 변화에 관한 연구
The Recent Climatic Characteristic and Change in the Republic of Korea based on the New Normals (1991~2020) 원문보기

대기 = Atmosphere, v.33 no.5, 2023년, pp.477 - 492

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)

Abstract ▼ AI-Helper

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.

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표/그림 (13)

그림 Fig. 1. Weather Stations used for this study (solid dots are 62 stations used for calculating the national mean while blank dots are 72 stations used for analyzing differences between 1991~2020 and 1981~2010 normal).
표 Table 1. Selected extreme climate indices for this study.
표 Table 2. New annual and seasonal climate normals for temperature, precipitation, wind speeds, and relative humidity based on the period of 1991~2020 and their differences from that of 1981~2010 in the Republic of Korea.
표 Table 3. New monthly climate normals for temperature, precipitation, wind speeds, and relative humidity based on the period of 1991~2020 and their differences from that of 1981~2010 in the Republic of Korea.
그림 Fig. 2. New normals climograph for the Republic of Korea: (a) new normal monthly mean temperature and precipitation and (b) differences from that of 1981~2010.
그림 Fig. 3. The dif ference (ºC) of new normal (1991~2020) (a) annual mean, (b) maximum and (c) minimum temperatures from 1981~2010 normals by weather stations.
표 Table 4. New annual normals of extreme climate indices and their differences from that of 1981~2010 in the Republic of Korea.
그림 Fig. 4. The difference (%) of new normal (a) annual, (b) spring, (c) summer, (d) autumn and (e) winter precipitation from 1981~2010 normals by stations.
그림 Fig. 5. The difference (%) of new normal (a) annual, (b) spring, (c) summer, (d) autumn and (e) winter relative humidity from 1981~2010 normals by stations.
그림 Fig. 6. (a) Daily maximum temperature ≥ 30ºC days (MxT30) for the new normal (1991~2020), (b) the difference (days) of new MxT30 from 1981~2010 normals and (c) Daily maximum temperature ≥ 35ºC days (MxT35) for the new normal (1991~2020) by stations.
그림 Fig. 7. (a) Daily minimum temperature < -10ºC days (MnT-10) for the new normal (1991~2020), (b) the difference (days) of new MnT-10 from 1981~2010 normals, (c) daily minimum temperature ≤ -15ºC days (MnT-15) for the new normal (1991~2020).
그림 Fig. 8. (a) Daily minimum temperature ≥ 25ºC days (MnT25) for the new normal (1991~2020), (b) the difference (days) of MnT25 from 1981~2010 normals, and (c) diurnal temperature range ≥ 10ºC days (DTR10) for the new normal (1991~2020).
그림 Fig. 9. (a) Daily precipitation ≥ 100 mm days (PD100), (b) one-hour maximum precipitation ≥ 30 mm days (PH30), and (c) daily maximum wind speed ≥ 13.9 m/s days (W13.9) for the new normal (1991~2020).

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