阿勒泰地区冬季极端最低气温变化分析

摘要

Using climatic method to make comprehensive analysis on extreme minimum temperature in Altay region in winter (from November to March) in the past 49 years. The result showed the regional distribution of extreme minimum temperature in the east was lower than that in the west; the most of the lowest values occurred in December and January, which was the coldest in 1960s; the average extreme minimum temperature in winter showed an increasing tendency in the past 49 years with H values greater than 0.5, which meant the increasing tendency of extreme minimum temperature was persistent and would continue in the future.%采用气候分析的方法，分析研究表明近49a阿勒泰地区冬季（11—3月）极端最低气温的区域分布为东低西高，最低值大部出现在12月和1月，这两个月以20世纪60年代最冷。阿勒泰地区冬季平均极端最低气温49a来呈升高趋势，且具有持续性，未来仍呈上升趋势。