2011년 2월 11~12일 부산 근해에서 발달한 극저기압에 대한 사례연구
A Case Study on the Polar Low Developed over the Sea Near Busan on 11~12 February 2011
0
조회
0
다운로드
5
인용
0
참고문헌
키워드
초록
The evolutionary process of the polar low, which caused the heavy snowfall in the East Coast area on 11~12 February 2011, was investigated to describe in detail using synoptic weather charts, satellite imageries, and ERA (European Centre for Medium-Range Weather Forecasts Re-Analysis) -Interim reanalysis data. It was revealed that 1) the polar low was generated over the sea near Busan where a large cyclonic shear in the inverted trough branched from the parent low existed, 2) during the developing and mature stages, there was a convectively unstable region in the lower layer around the polar low and its south side, 3) the polar low was developed in the region where the static stability in the 500~850 hPa layer was the lowest, 4) the result from the budget analysis of the vorticity equation indicated that the increase in the vorticity at the lower atmosphere, where the polar low was located, was dominated mainly by the stretching term, 5) the warm core structure of the polar low was identified in the surface-700 hPa layer during the mature stage, 6) there was a close inverse relationship between a development of the polar low and the height of the dynamic tropopause over the polar low, and 7) for generation and development of the polar low, large-scale circulation systems, such as upper cold low and its combined short wave trough, major low (parent low), and polar air outbreak, should be presented, indicating that the polar low has the nature of the baroclinic disturbance.
Abstract
The evolutionary process of the polar low, which caused the heavy snowfall in the East Coast area on 11~12 February 2011, was investigated to describe in detail using synoptic weather charts, satellite imageries, and ERA (European Centre for Medium-Range Weather Forecasts Re-Analysis) -Interim reanalysis data. It was revealed that 1) the polar low was generated over the sea near Busan where a large cyclonic shear in the inverted trough branched from the parent low existed, 2) during the developing and mature stages, there was a convectively unstable region in the lower layer around the polar low and its south side, 3) the polar low was developed in the region where the static stability in the 500~850 hPa layer was the lowest, 4) the result from the budget analysis of the vorticity equation indicated that the increase in the vorticity at the lower atmosphere, where the polar low was located, was dominated mainly by the stretching term, 5) the warm core structure of the polar low was identified in the surface-700 hPa layer during the mature stage, 6) there was a close inverse relationship between a development of the polar low and the height of the dynamic tropopause over the polar low, and 7) for generation and development of the polar low, large-scale circulation systems, such as upper cold low and its combined short wave trough, major low (parent low), and polar air outbreak, should be presented, indicating that the polar low has the nature of the baroclinic disturbance.
참고문헌 (42)
- Asai, T., "Mesoscale features of heavy snowfalls in Japan Sea coastal regions of Japan", Tenki, 35, pp.156~161 (1988)
- Asai, T., "An analytical study of mesoscale vortexlike disturbances observed around Wakasa Bay area", J. Meteor. Soc. Japan, 59, pp.832~843 (1981)
- Bell, G. D., "A case study diagnosis of the formation of an upper-level cutoff cyclonic circulation over the Eastern United States", Mon. Wea. Rev, 121, pp.1635~1655 (1993)
- 조경미, "(A)Case study of the polar low developed off the south-east coast of the Korean Peninsula on 5 march, 2005", 석사, 지구환경과학, pp.2007
- Emanuel, K. A., "polar lows as arctic hurricanes", Tellus A, 41, pp.1~17 (1989)
- Forbes, G. S., "Classification of mesoscale vortices in Polar airstreams and the influence of the large-scale environment on their evolutions", Tellus A, 37, pp.132~155 (1985)
- Fu, G., "An observational and numerical study on polar lows over the Japan Sea", Ph.D., pp.1999
- Fu, G., "A polar low over the Japan Sea on 21 January 1997. Part I: Observational analysis", Mon. Wea. Rev., 132, pp.1537~1551 (2004)
- Fu, G., "A polar low over the Japan Sea on 21 January 1997. Part II: A Numerical Study", Mon. Wea. Rev, 132, pp.1552~1574 (2004)
- Gordon, A., "Dynamic meteorology: A basic course", pp.325~ (1998), Arnold
- Harley, D. G., "Frontal contour analysis of a “Polar low”", Meteor. Mag., 89, pp.146~147 (1960)
- Harrold, T. W., "The polar low as a baroclinic disturbance", Quart. J. Roy. Meteor. Soc., 95, pp.710~723 (1969)
- Holton, J. R., "An introduction to dynamic meteorology", pp.511~ (1992), Academic press
- 정병주, "2004년 3월 4-5일 한반도 대설 사례의 역학·열역학적 특성에 관한 수치 연구", 한국기상학회지, 41(3), pp.387~399 (2005), 한국기상학회
- 김현미, "Potential Vorticity Thinking as an Aid to Understanding Midlatitude Weather Systems", 한국기상학회지, 40(6), pp.633~647 (2004), 한국기상학회
- 김진연, "대류권계면 접힘에 의한 중규모 강설 발달에 대한 사례 연구", 대기, 23(3), pp.331~346 (2013), 한국기상학회[DOI]
- Lee, D. K., "A study on numerical simulation of winter cyclone development in the east Asian coast area", Asia-Pac. J. Atmos. Sci., 23, pp.1~22 (1987)
- 이홍란, "급격히 발달하는 저기압과 관련된 대류권계면 파상운동", 한국기상학회지, 38(5), pp.431~463 (2002), 한국기상학회
- Lee, T. -Y., "A numerical modeling study of mesoscale cyclogenesis to the East of the Korean Peninsula", Mon. Wea. Rev, 126, pp.2305~2329 (1998)
- Miyazawa, S., "On vertical mesoscale disturbances observed during the period of heavy snow or rain in the Hokuriku district", J. Meteor. Soc. Japan, 45, pp.166~176 (1967)
- Montgomery, M. T., "Polar low dynamics", J. Atmos. Sci., 49, pp.2484~2505 (1992)
- Ninomiya, K., "Polar", comma-cloud lows over the Japan Sea and the north western Pacific in winter, 1989, pp.67, 83~97
- Ninomiya, K., "polar low development over the east coast of the Asian Continent on 9~11 December 1986", J. Meteor. Soc. Japan, 69, pp.699~685 (1991)
- Ninomiya, K., "A meso-scale low family formed over the northeastern Japan Sea in the northwestern part of a parent polar low", J. Meteor. Soc. Japan, 72, pp.306~318 (1994)
- Ninomiya, K., "Multi-scale features of the cold air outbreak over the Japan Sea and the northwestern Pacific", J. Meteor. Soc. Japan, 74, pp.745~761 (1996)
- Ninomiya, K., "Evolution process and multi-scale structure of a polar low developed over the Japan Sea on 11~12 December 1989. Part 1: Evolution process and meso-α-scale structure", J. Meteor. Soc. Japan, 68, pp.293~306 (1990)
- Ninomiya, K., "Meso-α-scale low development over the northeastern Japan sea under the influence of a parent large-scale low and a cold vortex aloft", J. Meteor. Soc. Japan, 71, pp.73~91 (1993)
- Ninomiya, K., "Polar low genesis over the East Coast of the Asian containent simulated in an AGCM", J. Meteor. Soc. Japan, 81, pp.697~712 (2003)
- Nordeng, T. E., "A most beautiful polar low - a case study of a polar low development in the Bear Island region", Tellus A, 44, pp.81~99 (1992)
- Park, J. H., "A genesis and development mechanism of a mesocyclone causing a heavy snowfall over the Yeongdong coastal area", Proc. of the 2006 Spring Meeting of Korean Meteor. Soc., pp.290~291 (2006)
- Park, J. K., "Cluster analysis and development mechanism of explosive cyclones in East Asia", Atmosphere, 34, pp.523~547 (1998)
- Rasmussen, E. A., "The polar low as an extratropical CISK disturbance", Quart. J. Roy. Meteor. Soc, 105, pp.531~549 (1979)
- Rasmussen, E. A., "A polar low development over the Barents Sea", Tellus A, 37, pp.407~418 (1985)
- Rasmussen, E. A., "Polar lows: a critical appraisal", Proc., Int. Symp. on the life cycles of extratropical Cyclones, III, pp.199~203 (1994)
- Rasmussen, E. A., "Polar lows: Mesoscale weather systems in the Polar regions", pp.612~ (2003), Cambridge University Press
- Reed, R. J., "Baroclinic instability as a mechanism for the serial development of polar lows: a case study", Tellus A, 39, pp.376~384 (1987)
- Tsuboki, K., "Mesoscale cyclogenesis in winter monsoon air streams: Quasi-geostrophic baroclinic instability as a mechanism of the cyclogenesis off the west coast of Hokkaido Island, Japan", J. Meteor. Soc. Japan, 70, pp.77~93 (1992)
- Watanabe, S. I., "Cenesis developement mechanisms of a polar mesocyclone over the Japen Sea", Mon. Wea. Rev, 142, pp.2248~2270 (2014)
- Atmospheric Ozone 1985: Global Ozone Research and Monitoring Report, "World Meteorological Organization", WMO, 392~, pp.Rep. No. 16 (1986)
- Yanase, W., "A polar low over the Japan Sea on 21 January 1997. Part II: A numerical study", Mon. Wea. Rev., 132, pp.1552~1574 (2004)
- Yanase, W., "Dependence of polar low development on baroclinicity and physical processes: An idealized high-resolution numerical experiment", J. Atmos. Sci., 64, pp.3044~3067 (2007)
- Yarnal, B., "A climatology of Polar cyclogenetic regions over the North Pacific Ocean", J. Climate, 2, pp.1476~1491 (1989)
