内蒙古冬季主要极端气候事件的环流影响因素分析  

Analysis of Circulation Influencing Factors of Extreme Climatic Event in Winter in Inner Mongolia

作　　者：李海英[1] 司瑶冰 李杨 

机构地区：[1]内蒙古气候中心,内蒙古呼和浩特010051 [2]内蒙古气象服务中心,内蒙古呼和浩特010051

出　　处：《内蒙古气象》2013年第1期3-8,共6页Meteorology Journal of Inner Mongolia

摘　　要：过去的几十年中,内蒙古冬季(11月至次年2月)出现极端气候事件的年份并不多。对于极端低温事件的发生,在中西部地区极少出现,多数发生在锡林郭勒盟中部及以东地区。特别是自1986年气候转暖以来,在暖的大背景下,更是较少出现极端低温事件;极端降水事件在冬季各月中也有发生,每个月有其各自的特点。文章着重研究分析11月的极端降水事件。通过对海温、大气环流的异常进行分析和研究,找出影响内蒙古冬季极端降水、极端低温的关键性因子,对今后的极端气候事件预测工作有所帮助和借鉴。In the past decades, few of the extreme climatic event has been recorded in winter （form November to next February） in Inner Mongolia. Extreme microtherm events rarely occurred in the central and western region, mostly in central and eastern areas of the Xilin Gol League in Inner Mongolia. Especially, the extreme microtherm events were less under the climate warming since the 1986. The episodes of extreme rainfall have been occurred each month in winter, but each month has its own characteristics. This paper focuses on analysis the episodes of extreme rainfall in November. Through analysis on the SST and the atmospheric circulation anomaly be found that the crucial factor of affects extreme precipitation and extreme low temperature in winter in Inner Mongolia for prediction the extreme climatic events as a reference.

关 键 词：冬季 极端气候事件 极端降水 极端低温 

分 类 号：P461[天文地球—大气科学及气象学]