CAJ | 학술논문

2014年10月大气环流特征如下：北半球高纬地区极涡为单极型，中高纬地区为5波型分布，南支槽偏北，西太平洋副热带高压与常年相当。10月，全国平均降水量29．5 mm，较常年同期（35．8 mm）偏少17．6％；全国平均气温11．2℃，较常年同期（10．3℃）偏高0．9℃。甘肃南部、东北东部和京津冀等地共有51站发生极端日降温事件，东北地区共有17站发生极端连续降温事件。月内共有3次强降水过程，其中，10月27—31日，海南及四川盆地、贵州至长江中下游一带出现大到暴雨天气过程，局地大暴雨到特大暴雨。10月，冷空气势力较弱，有两次主要冷空气过程影响我国。我国中东部出现4次大范围雾霾天气。江西、湖南南部和东部、广东大部、福建南部和西部、广西东部等地存在中度气象干旱。
2014년10월대기배류특정여하：북반구고위지구겁와위단겁형，중고위지구위5파형분포，남지조편북，서태평양부열대고압여상년상당。10월，전국평균강수량29．5 mm，교상년동기（35．8 mm）편소17．6％；전국평균기온11．2℃，교상년동기（10．3℃）편고0．9℃。감숙남부、동북동부화경진기등지공유51참발생겁단일강온사건，동북지구공유17참발생겁단련속강온사건。월내공유3차강강수과정，기중，10월27—31일，해남급사천분지、귀주지장강중하유일대출현대도폭우천기과정，국지대폭우도특대폭우。10월，랭공기세력교약，유량차주요랭공기과정영향아국。아국중동부출현4차대범위무매천기。강서、호남남부화동부、엄동대부、복건남부화서부、엄서동부등지존재중도기상간한。
The main characteristics of the general atmospheric circulation in October 2014 are as follows:There was one polar vortex center in Northern Hemisphere.In the middle-high latitudes,the circulation presented a five-wave pattern.The southern trough was to the north and the subtropical high was almost same as its climatological mean.Meanwhile,monthly mean precipitation amount was 29.5 mm,which is 17.7% less than its climatological mean (35.8 mm).Monthly mean temperature was 11.2℃,which is 0. 9℃ higher than its climatological mean (10.3℃).51 stations observed extreme temperature drop events in one day in the south of Gansu,the east of Northeast and the Beijing-Tianjin-Hebei Region and 17 stations had events of extremely continuous drop in temperature in the east of Northeast.There were three severe rainfall processes, of which Hainan, Sichuan Basin, Guizhou to the middle and lower reaches of Changjiang River had heavy to torrential rains and some local areas had rainstorm to downpours from 27 to 31 October.Cold air was weak in October and only two cold air processes influenced China.Wide range of fog and haze weather appeared in central and eastern China 4 times.Moderate meteorological droughts were found in Jiangxi,the south and east of Hunan,the most part of Guangdong,the south and west of Fujian and the east of Guangxi.