대기 (Atmosphere)

  • 제30권1호
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  • Pages.47-57
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  • 2020
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  • 1598-3560(pISSN)
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  • 2288-3266(eISSN)
한국기상학회 (Korean Meteorological Society)
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우리나라 강풍의 기후학적 시공간 변화 특성

Climatological Spatio-Temporal Variation of Strong Wind in Korea

  • 김현욱 (국립기상과학원 재해기상연구센터) ;
  • 김백조 (국립기상과학원 재해기상연구센터) ;
  • 남형구 (국립기상과학원 재해기상연구센터) ;
  • 정종혁 (국립기상과학원 재해기상연구센터) ;
  • 심재관 (국립기상과학원 재해기상연구센터)
  • Kim, Hyun Uk (High Impact Weather Research Center, National Institute of Meteorological Sciences) ;
  • Kim, Baek-Jo (High Impact Weather Research Center, National Institute of Meteorological Sciences) ;
  • Nam, Hyoung-Gu (High Impact Weather Research Center, National Institute of Meteorological Sciences) ;
  • Jung, Jong Hyeok (High Impact Weather Research Center, National Institute of Meteorological Sciences) ;
  • Shim, Jae-Kwan (High Impact Weather Research Center, National Institute of Meteorological Sciences)
  • 투고 : 2019.10.17
  • 심사 : 2019.12.22
  • 발행 : 2020.03.31
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초록

In this study, the climatological spatio-temporal variation of strong wind and gust wind in Korea during the period from 1993 to 2018 was analyzed using daily maximum wind speed and daily maximum instantaneous wind speed data recorded at 61 observations. Strong wind and gust wind were defined as 14 m s-1 and 20 m s-1, which are the same as the KMA's criteria of special weather report. The frequency of strong wind and gust wind occurrence was divided into regions with the higher 25 percent (Group A) and the lower 75 percent (Group B). The annual frequency of strong wind and gust wind occurrence tended to be decreased in most parts of the Korean peninsula. In Group A with stations located at coastal region, strong wind and gust wind occurred most frequently in winter with higher frequency at 1200~1600 LST and 2300~2400 LST due to influence of East Asian winter monsoon. In addition, a marked decreasing trend throughout the four seasons was shown at Daegwallyeong, Gunsan and Wando observations. In contrast, it can be found in Group B that the monthly frequency of strong wind and wind gust occurrence was higher in August and September by effect of typhoon and hourly frequency was higher from 1200 LST to 1800 LST.

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