呼伦贝尔市高温天气时空分布特征

摘要

文章对呼伦贝尔市16个台站1960—2012年高温日进行了统计分析，结果表明：高温日地理分布不均匀，西南部最多，中部和东南部次之，北部最少；高温天气出现在5—9月，集中在6—8月，6月最多、9月最少。高温年代际变化最多的是20世纪90年代末至21世纪前10年；次多是20世纪80年代初，然后是20世纪60年代末期；20世纪80年代中后期高温日数特别少。呼伦贝尔市近53年极端最高气温是42.5℃，出现在2004年7月21日的新巴尔虎右旗。%With high temperature days data from 16 stations in Hulun Buir during 1960—2012,the results showed that the geographical distribution of high temperature days were unevenness. The days of southwestern area were the most , followed by central and southeastern area, the northern area were the least. Hot weather occured in May to September, most appeared in June to August, up to June, September least. The maximum Interdecadal change of high temperature was the end of the 1990s to the first decade of this century, then the early 1980s, followed by the late 1960s, particularly small number of high temperature days was the late 1980s. In the recent 53 years, the extreme maximum temperature was 42.5 ℃,which appeared on the July 21th in 2004 at Xinbaerhuyouqi.