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영동지역 장기간(2000~2020년) 활강 강풍 특성

Characteristics of Long-term (2000~2020) Downslope Windstorm in the Yeongdong Region

김지윤|김병곤|최영길|임병환|정지훈|채유진
한국기상학회 (Korean Meteorological Society)|2023.02|대기 (Atmosphere)|제33권 제1호|pp. 21-32|DOI 10.14191/Atmos.2023.33.1.021

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참고문헌

키워드

GangneungFroude numberDownslope windstormrawinsonde
주제분류대기과학

초록

Characteristics of downslope windstorm (DW) has been examined mainly based on1-min average wind and the other meteorological conditions in the Yeongdong region for 2000~2020. First, a classification procedure for the downslope windstorm is proposed using surfacewind speed (greater than 99 percentile), 1-hour longevity of strong wind (SW), westerly winddirection, low humidity (less than 20 percentile), and leeside warming. The number of DW dayssatisfying the proposed criteria is 221 (2.9% of total days and 47.5% of SW days) while thenumber of SW days is 465 (6.1% of total days) for 2000~2020. The occurrences of both SWand DW shows distinctive annual variation with its peak in April. In addition, mean wind speedof DW days is 8.2 m s1 with its duration of 2 hr 30 min and relative humidity of 28% at Gangneung. An episode (7 May 2021) was selected by applying the proposed criteria to SW days of2021. The sounding shows that the layer of wind speed greater than 25 m s1 was lowered downto 925 hPa at Gangneung (leeside) relative to 850 hPa at Hoengseong (Wonju), in the afternoonalong with significant warming and drying. Froude numbers of Wonju and Gangneung for theDW events were increased 4 and 5 times greater than those of normal days, respectively. Thiskind of DW long-term statistics in the leeside of the mountains is thought to build a foundationof further understanding DW mechanism.

Abstract

Characteristics of downslope windstorm (DW) has been examined mainly based on1-min average wind and the other meteorological conditions in the Yeongdong region for 2000~2020. First, a classification procedure for the downslope windstorm is proposed using surfacewind speed (greater than 99 percentile), 1-hour longevity of strong wind (SW), westerly winddirection, low humidity (less than 20 percentile), and leeside warming. The number of DW dayssatisfying the proposed criteria is 221 (2.9% of total days and 47.5% of SW days) while thenumber of SW days is 465 (6.1% of total days) for 2000~2020. The occurrences of both SWand DW shows distinctive annual variation with its peak in April. In addition, mean wind speedof DW days is 8.2 m s1 with its duration of 2 hr 30 min and relative humidity of 28% at Gangneung. An episode (7 May 2021) was selected by applying the proposed criteria to SW days of2021. The sounding shows that the layer of wind speed greater than 25 m s1 was lowered downto 925 hPa at Gangneung (leeside) relative to 850 hPa at Hoengseong (Wonju), in the afternoonalong with significant warming and drying. Froude numbers of Wonju and Gangneung for theDW events were increased 4 and 5 times greater than those of normal days, respectively. Thiskind of DW long-term statistics in the leeside of the mountains is thought to build a foundationof further understanding DW mechanism.

참고문헌 (34)

  1. "downslope windstorm" (2022)[URL]
  2. Azorin-Molina, C, "Recent trends in wind speed across Saudi Arabia, 1978-2013: a break in the stilling", Int. J. Climatol, 38, pp.e966~e984 (2018)[DOI]
  3. Brinkmann, W. A. R., "Strong downslope winds at Boulder", Colorado. Mon. Wea. Rev, 102, pp.592~602 (1974)[DOI]
  4. 조영준, "영동지역 지형성 강풍과 관련된 풍하측 기상요소의 특징", 한국지구과학회지, 36(4), pp.315~329 (2015), 한국지구과학회
  5. 최영주, "한반도 지상 풍속의 장기 추세 분석: 풍속계 고도 보정", 대기, 31(1), pp.101~112 (2021), 한국기상학회[DOI]
  6. 최영주, "한반도 지상 풍속의 장기 추세 추정: 관측 자료의 물리적 및 통계적 보정", 대기, 31(5), pp.553~562 (2021), 한국기상학회[DOI]
  7. Durran, D. R., "On the effects of moisture on the Brunt-Väisälä frequency", J. Atmos. Sci, 39, pp.2152~2158 (1982)[DOI]
  8. Durran, D. R., "Another look at downslope windstorms. Part I: The development of analogs to supercritical flow in an infinitely deep, continuously stratified fluid", J. Atmos. Sci, 43, pp.2527~2543 (1986)[DOI]
  9. Durran, D. R., "Mountain waves and downslope winds", Atmospheric Processes over Complex Terrain, METEOR, (23), pp.59~81 (1990)[DOI]
  10. 황혜원, "강릉지역 2009~2018년 해풍 발생 특성", 대기, 30(3), pp.221~236 (2020), 한국기상학회[DOI]
  11. Hoinka, K. P., "Observation of the airflow over the Alps during a foehn event", Q. J. R. Meteorol. Soc, 111, pp.199~224 (1985)[DOI]
  12. 장욱, "봄철 강릉지역에서 발생하는 강풍에 대한 연구", 대기, 18(3), pp.207~224 (2008), 한국기상학회
  13. 김현욱, "우리나라 강풍의 기후학적 시공간 변화 특성", 대기, 30(1), pp.47~57 (2020), 한국기상학회[DOI]
  14. Kim, J. -H., "Study on mechanisms and orographic effect for the springtime downslope windstorm over the Yeongdong region", Atmosphere, 16, pp.67~83 (2006)
  15. 김미경, "영동 지역 한기 축적과 강설의 연관성 분석", 대기, 31(4), pp.421~431 (2021), 한국기상학회[DOI]
  16. Klemp, J. B., "The dynamics of waveinduced downslope winds", J. Atmos. Sci, 32, pp.320~339 (1975)[DOI]
  17. Klink, K., "Climatological mean and interannual variance of United States surface wind speed, direction and velocity", Int. J. Climatol, 19, pp.471~488 (1999)[DOI]
  18. Hiroyuki Kusaka, "Review of downslope windstorms in Japan", Wind and Structures, An International Journal, 24(6), pp.637~656 (2017), 한국풍공학회
  19. 이재규, "태백산맥의 지형적인 효과와 관련된 강릉 지역의 강풍 사례에 대한 수치모의 연구", 한국환경과학회지, 12(12) (2003), 한국환경과학회
  20. Lee, J., "A numerical study of windstorms in the lee of the taebaek mountains, South Korea: Characteristics and generation mechanisms", Atmosphere, 11, pp.431~ (2020)[DOI]
  21. Lilly, D. K., "The effects of terrain shape on nonlinear hydrostatic mountain waves", J. Fluid. Mech, 95, pp.241~261 (1979), Cambridge University Press[DOI]
  22. Lin, Y. -L., "Flow regimes and transient dynamics of two-dimensional stratified flow over an isolated mountain ridge", J. Atmos. Sci, 53, pp.139~158 (1996)[DOI]
  23. 박유정, "관측사례로 검증한 영동강풍 발생조건 분석", 대기, 31(4), pp.405~420 (2021), 한국기상학회[DOI]
  24. Peterson, E. W., "On the use of power laws for estimates of wind power potential", J. Appl. Meteor. Climatol, 17, pp.390~394 (1978)[DOI]
  25. Pryor, S. C., "Empirical downscaling of wind speed probability distributions", J. Geophys. Res. Atmos, 110, pp.D19109~ (2005)[DOI]
  26. Richner, H., "Mountain weather research and forecasting", pp.219~260 (2013), Springer
  27. Shestakova, A. A., "Climatology of extreme downslope windstorms in the Russian Arctic", Weather Clim. Extrem, 28, pp.100256~ (2020)[DOI]
  28. Shin, Y., "Classification of synoptic patterns with mesoscale mechanisms for downslope windstorms in Korea using a self-organizing map", J. Geophys. Res. Atmos, 127 (2022)[DOI]
  29. Smith, R. B., "On severe downslope winds", J. Atmos. Sci, 42, pp.2597~2603 (1985)[DOI]
  30. Smith, R. B., "100 years of progress on mountain meteorology research", Meteor. Monogr, 59, pp.20.1~20.73 (2019)[DOI]
  31. Temme, F., "Flow regimes and föhn types characterize the local climate of Southern Patagonia", Atmosphere, 11, pp.899~ (2020)[DOI]
  32. Tsai, C. -L., "Observational study for strong downslope wind event under fine weather condition during ICEPOP 2018", Atmos. Chem. Phys (2021)[DOI]
  33. Wan, H., "Homogenization and trend analysis of Canadian near-surface wind speeds", J. Climate, 23, pp.1209~1255 (2010)[DOI]
  34. Wu, J., "Changes in terrestrial near-surface wind speed and their possible causes: an overview", Climate Dyn, 51, pp.2039~2078 (2018)[DOI]

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