山西南部近50年极端气温变化研究  

Research on annual extreme temperature of southern Shanxi Province in recent 50 years

作　　者：马淑苗[1] 赵景波[1,2] 

机构地区：[1]陕西师范大学旅游与环境学院,西安710062 [2]中国科学院地球环境研究所黄土与第四纪地质国家重点实验室,西安710075

出　　处：《地球环境学报》2011年第6期653-658,共6页Journal of Earth Environment

基　　金：国家自然科学基金项目(40571004)

摘　　要：根据山西南部1961—2010年的日气温资料,结合线性拟合、M-K突变检验以及小波分析,分析山西南部各个极端气温指标的变化趋势、突变年份以及振荡周期等。结果表明:山西南部的冷日和冷夜显著减少,分别为3.2 d·(10yr)^(-1)和5.4 d·(10yr)^(-1);暖日和暖夜显著增加,分别为9.4 d·(10yr)^(-1)和9.2 d·(10yr)^(-1);极端最低气温和极端最高气温都以0.36℃·(10yr)^(-1)的速率增加。极端气温事件的各指标均发生了突变,且突变多集中在1980年代和1990年代。极端气温事件有3 yr、5 yr、14 yr、18 yr和28~32 yr左右的振荡周期。Based on daily air temperature data of southern Shanxi Province from 1961 to 2010, the trends, jumping years and periodic changes of indices for extreme air temperature in southern Shanxi Province were analyzed with linear fitting, M-K abrupt change test and wavelet analysis. Cold days and cold nights in southern Shanxi Province decreased significantly at the speed of 3.2 d· （10yr）-1 and 5.4 d·（10yr）-1, respectively. Warm days and warm nights increased significantly at the speed of 9.4 d·（10yr）-1 and 9.2 d · （10yr）-z, respectively. Extreme minimum temperature and extreme maximum temperature both increased 0.36℃ · （10yr） -1. All of the indices for extreme air temperature occurred abrupt change and the abrupt years mainly centralized in the 1980s and 1990s. The extreme temperature events have several oscillating period such as three years, five years, fourteen years eighteen years and twenty eight to thirty two years.

关 键 词：极端气温 M—K突变检验 小渡分析 山西南部 

分 类 号：P467[天文地球—大气科学及气象学]