葫芦岛地区近50年气温变化特征分析

利用葫芦岛地区所辖4个气象台站1960～2009年月平均气温、月平均最高、最低气温资料,运用线性倾向估计方法和Mann-Ken-dall突变检验法,分析了葫芦岛地区近50年气温变化趋势和突变特征。结果表明,近50年来葫芦岛地区年平均气温、年最高、最低和四季平均气温均呈明显的上升趋势,冬季增温趋势最为显著;以1988年为界,葫芦岛地区气候可分为冷、暖2个阶段,1960～1987年为相对冷期,1988～2009年为相对暖期;葫芦岛地区年和四季的平均气温均先后在20世纪80年代末90年代初发生了突变。

Analysis on Temperature Variation Characteristics in Huludao in Recent 50 Years

Based on monthly mean temperature,monthly mean maximum temperature and mean minimum temperature of 4 meteorological stations in Huludao from 1960 to 2009,the linear tendency estimation and Mann-Kendall method were used to analyze temperature variation trend and mutation characteristics of recent 50 years in Huludao.The results showed that annual,highest,lowest and seasonal mean temperature have showed increasing trend obviously in recent 50 years,moreover,the increasing trend in winter was significant;takin...