Journal of the Korean association of regional geographers (한국지역지리학회지)
- Volume 2 Issue 2
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- Pages.103-111
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- 1996
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- 1226-7392(pISSN)
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- 2586-1468(eISSN)
A Study of the Synoptic Climatology on the January's Cold and Warm Winter Especially in 600hPa Circulation : Case Study 1992 and 1984 in January
500hPa면 순환특성을 중심으로 한 동계 이상 한.난월의 종관기후학적 연구 -1992년과 1984년의 1월의 경우-
- Lee, Byung-Gon (Department of Geography, Kyungpook National University) ;
- Min, Woo-Ki (Department of Geography, Kyungpook National University)
- Published : 1996.12.31
Abstract
I followed the results of Lee and Min(1996) for classification of the months of cold and warm winter. The winter of 1992 and 1984 recorded extraordinary cold and warm. Study of the Synoptic Climatology on the January's cold and warm winter is below: (1) Climatology's characteristic. Temperature of extremely high temperature month is higher compared with extremely low temperature month. Also precipitation is more than over low temperature month compared with extremely high temperature month. (2) In circulation of 500hPa surface. (1) Extremely high temperature month At 500hPa, negative geopotential height anomalies in high latitude, three trough developed over eastern Canada. In midlatitude, a deep trough persisted in the central North Pacific and conspicuous positive height anomalies showed over northwestern Europe, Where a blocking anticyclone developed. It had been warmer than normal since last year in Korea due mainly to positive height anomalies stretched from central Siberia (2) Extremely low temperature month Appeared the strong meridional circulation and negative height anomalies showed from Far East to the Mid-Pacific and appeared ridge in the west of the North America and Atlantic. Alutien Low shows negative deviation during 1984. In northern hemisphere shows negative deviation. Therefore, we can show that the surface pressure distribution and height distribution of 500hPa level are closely connected with each other as parts of general circulation. (3) The characteristics of the general circulation pattern of the 500hPa (1) Extremely high temperature month is high than extremely low temperature month1984 in Zonal index (2) The majority type is S type in 500hPa level circulation of extremely high temperature month but extremely high temperature month is M type (3) The wave number in 500hPa all shows 3 wave. So can not distinguished by only predominant wave number pattern.
본 연구는 지표상의 기상 요소의 분포 특성이 이압계(氣壓系)뿐만 아니라 기압계를 지배하는 상충대기의 상층대기의 환류(還流)의 특성과도 밀접한 관계가 있음을 기준하여, 우리나라에 있어서 지난 30년간(