강원영동 강풍 관측설계와 예비 관측결과
Gangwon Yeongdong Wind Experiments (G-WEX) Pilot Study: Downslope windstorms in the Taebaek Mountains, South Korea
0
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
“Gangwon Yeongdong Wind Experiments (G-WEX) Pilot Study: Downslope windstorms in the Taebaek Mountains, South Korea” is promoted based on joint organization by Gangwon Regional Office of Meteorology and National Institute of Meteorological Research and participation by 12 institutions to understand the mechanism in development of Yeongdong wind phenomena. The special observation (G-WEX) involved total of 5 intensive observations in March 2020 and April 2020. To collect the data necessary for the research on Yeongdong wind phenomena, (1) high-resolution surface observation network was used to examine surface wind and (2) atmospheric soundings were observed by using Rawinsonde, Wind profiler, Wind Lidar, and Drone. This study covers the detailed information on the special observational experiments for downslope windstorms in the leeward of the Taebaek Mountains, named as the Yeongdong wind, including the observational strategies, experimental designs, and pilot studies during the Intensified Observing Period (IOPs). According to 2020 G-WEX observation results, downslope windstorms were observed in 2~3 km of upper atmosphere when the strong winds happened around the top of the mountain near Daegwallyeong. Also, dry adiabatic expansion related to downslope windstorms caused temperature rise and led to formation of an inversion layer in altitude below 2.5 km. Bands of strong wind were located right under the altitude where downslope windstorms are observed with temporal rise of the temperature. As these are preliminary observation results, there needs to be continuous related researches and high-resolution weather observation.
Abstract
“Gangwon Yeongdong Wind Experiments (G-WEX) Pilot Study: Downslope windstorms in the Taebaek Mountains, South Korea” is promoted based on joint organization by Gangwon Regional Office of Meteorology and National Institute of Meteorological Research and participation by 12 institutions to understand the mechanism in development of Yeongdong wind phenomena. The special observation (G-WEX) involved total of 5 intensive observations in March 2020 and April 2020. To collect the data necessary for the research on Yeongdong wind phenomena, (1) high-resolution surface observation network was used to examine surface wind and (2) atmospheric soundings were observed by using Rawinsonde, Wind profiler, Wind Lidar, and Drone. This study covers the detailed information on the special observational experiments for downslope windstorms in the leeward of the Taebaek Mountains, named as the Yeongdong wind, including the observational strategies, experimental designs, and pilot studies during the Intensified Observing Period (IOPs). According to 2020 G-WEX observation results, downslope windstorms were observed in 2~3 km of upper atmosphere when the strong winds happened around the top of the mountain near Daegwallyeong. Also, dry adiabatic expansion related to downslope windstorms caused temperature rise and led to formation of an inversion layer in altitude below 2.5 km. Bands of strong wind were located right under the altitude where downslope windstorms are observed with temporal rise of the temperature. As these are preliminary observation results, there needs to be continuous related researches and high-resolution weather observation.
참고문헌 (17)
- Booker, J. R., "The critical layer for internal gravity waves in a shear flow", J. Flu. Mecha., 27, pp.513~539 (1967)
- Brinkmann, W. A. R., "Strong downslope winds at Boulder, Colorado", Mon. Wea. Rev., 102, pp.592~602 (1974)
- Leila Carvalho, "The Sundowner Winds Experiment (SWEX) Pilot Study: Understanding Downslope Windstorms in the Santa Ynez Mountains, Santa Barbara, California", Monthly Weather Review, 148(4), pp.1519~1539 (2020), American Meteorological Society[DOI]
- 정의헌, "국내풍속보정에 적합한 Deacon 방정식의 기하평균높이 산정방법에 대한 연구", 한국태양에너지학회 논문집, 30(4), pp.9~14 (2010), 한국태양에너지학회
- 조영준, "영동지역 지형성 강풍과 관련된 풍하측 기상요소의 특징", 한국지구과학회지, 36(4), pp.315~329 (2015), 한국지구과학회
- Clark, T. L., "Critical level reflection and the resonant growth of nonlinear mountain waves", J. Atmos. Sci., 41, pp.3122~3134 (1984)
- Colson, D., "Meteorological problems in forecasting mountain waves", Bull. Amer. Meteor. Soc., 35, pp.363~371 (1954)
- 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)
- Grubišić, V., "The Terrain-Induced Rotor Experiment: A field campaign overview including observational highlights", Bull. Amer. Meteor. Soc., 89, pp.1513~1534 (2008)
- 장욱, "봄철 강릉지역에서 발생하는 강풍에 대한 연구", 대기, 18(3), pp.207~224 (2008), 한국기상학회
- Kim, J. -H., "Study on mechanisms and orographic effect for the springtime downslope windstorm over the Yeongdong region", Atmosphere, 16, pp.67~83 (2006)
- Klemp, J. B., "The dynamic of waveinduced downslope winds", J. Atmos. Sci., 32, pp.320~339 (1975)
- Guide to Upper air of Observation, "KMA", Korea Meteorological Administration, 183~ (2018)
- An intensive analysis of characteristics of upper air observation datas, "Kwon, T. -Y.", Gangwon Regional Office of Meteorology, 84~, pp.11-1360000- 001427-01 (2017)
- 이재규, "태백산맥의 지형적인 효과와 관련된 강릉 지역의 강풍 사례에 대한 수치모의 연구", 한국환경과학회지, 12(12) (2003), 한국환경과학회
- 이재규, "역전층이 영동 지역의 활강풍에 미치는 영향에 관한 민감도 수치실험 연구", 대기, 19(4), pp.331~344 (2009), 한국기상학회
- Long, R. R., "Some aspects of the flow of stratified fluids: I. A theoretical investigation", Tellus, 5, pp.42~58 (1953)
