CAJ | 학술논문

2014年1月大气环流主要特征如下：北半球极涡呈偶极型分布，位置较常年同期明显偏南；欧亚中高纬环流经向度较小；南支槽平均位置位于70°E附近，位置较常年同期明显偏西；同时，西太平洋副热带高压较常年同期略偏弱。1月，全国平均降水量为6．2 mm，较常年同期（13．2 mm）偏少53．0％。全国平均气温为-3．4℃，较常年同期（-5．0℃）偏高1．6℃。月内，我国出现1次主要冷空气过程和4次主要降水过程。北方冬麦区降水偏少，气象干旱持续；中东部地区出现大范围雾或霾天气；南方地区出现低温雨雪天气。
2014년1월대기배류주요특정여하：북반구겁와정우겁형분포，위치교상년동기명현편남；구아중고위배류경향도교소；남지조평균위치위우70°E부근，위치교상년동기명현편서；동시，서태평양부열대고압교상년동기략편약。1월，전국평균강수량위6．2 mm，교상년동기（13．2 mm）편소53．0％。전국평균기온위-3．4℃，교상년동기（-5．0℃）편고1．6℃。월내，아국출현1차주요랭공기과정화4차주요강수과정。북방동맥구강수편소，기상간한지속；중동부지구출현대범위무혹매천기；남방지구출현저온우설천기。
The following are the main characteristics of the general circulation of atmosphere in January 2014.There are two polar vortex centers in the Northern Hemisphere located more southward than normal years.The circulation presents latitudinal patterns in middle-high latitudes.The south branch trough is averagely located near 70°E,being more westward than normal years.Besides,the subtropical high is a little weaker than normal years.The monthly mean precipitation is 6.2 mm,53.0% less than the normal (1 3 .2 mm).The monthly mean temperature is -3 .4℃,1 .6℃ higher than the normal (-5 .0℃).There is one cold air process nationwide and four rainfall processes in the month.Lack of rainfall has caused me-teorological drought in the northern winter wheat region.Meanwhile,large-scale fog and haze weather ap-pear in the central and the east of China.Moreover,cryogenic snow weather hit the south of China.