CAJ | 학술논문

2014年8月环流特征如下：北半球高纬地区极涡为偶极型，中高纬地区为4波型分布，西北太平洋副热带高压异常偏南偏强，8月全国平均降水量为104．4 mm，比常年同期（105．3 mm）略偏少0．9％。；8月全国平均气温为20．6℃，较常年同期（20．8℃）偏低0．2℃。月内共有8次强降水过程，多站出现了极端日降水量。1949年以来首次在西北太平洋和南海8月无台风生成，只有一个从东太平洋移入的1314号台风吉纳维芙。8月在长江中下游地区出现了低温寡照天气。
2014년8월배류특정여하：북반구고위지구겁와위우겁형，중고위지구위4파형분포，서북태평양부열대고압이상편남편강，8월전국평균강수량위104．4 mm，비상년동기（105．3 mm）략편소0．9％。；8월전국평균기온위20．6℃，교상년동기（20．8℃）편저0．2℃。월내공유8차강강수과정，다참출현료겁단일강수량。1949년이래수차재서북태평양화남해8월무태풍생성，지유일개종동태평양이입적1314호태풍길납유부。8월재장강중하유지구출현료저온과조천기。
The main characteristics of the general circulation in August 2014 are listed as follows:There are two polar vortex centers in the Northern Hemisphere.In the middle-high latitudes,the circulation pres-ents a four-wave pattern.The subtropical high lies southwards and is stronger than its climatological mean.Meanwhile,monthly mean precipitation amount is 104.4 mm,which is 0.9% less than its climato-logical mean (105.3 mm).Monthly mean temperature over China is 20.6℃,which is a little lower than its climatological mean (20.8℃).There are 8 severe rainfall events with extreme daily precipitation records observed at some stations in China.No typhoon forms over the northwestern Pacific Ocean and the South China Sea in August,which happens firstly since 1949.The only active typhoon is No.1314 Genevieve, which comes from the eastern Pacific.Some low-temperature and sunlight-lack events happen in the middle and lower reaches of Yangtze River region.