1870年以来河南省年平均气温变化特征  

Characteristics of Annual Mean Temperature of Henan Province Since 1870

作　　者：闫军辉 王黎明[4] 刘明华 牛继强 曹广超[5] 朱伟 张华[1,2,3] YAN Junhui;WANG Liming;LIU Minghua;NIU Jiqiang;CAO Guangchao;ZHANG Hua(a.College of Geographic Sciences,b.Research Center of North and South Transition Zone in China,c.Key Laboratory of Climate Change ＆ Environmental Evolution,d.College of Coniputer Science and Technology,Xinyang Nornial University,Xinyang 464000,China;Key Laboratory of Physical Geography and Environmental Process,Qinghai Normal University,Xining 810008,China)

机构地区：[1]信阳师范学院地理科学学院,河南信阳464000 [2]信阳师范学院南北过渡带研究中心,河南信阳464000 [3]信阳师范学院气候与环境演变重点实验室,河南信阳464000 [4]信阳师范学院计算机与信息技术学院,河南信阳464000 [5]青海师范大学青海省自然地理与环境过程重点实验室,青海西宁810008

出　　处：《信阳师范学院学报（自然科学版）》2018年第3期432-436,共5页Journal of Xinyang Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(41501051;41630529);青海省自然地理与环境过程重点实验室开放基金项目(2018-QZH-K04);河南省教育厅教师教育课程改革研究项目(2017-JSJYLX-006);河南省自然科学基金项目(182300410114);信阳师范学院南湖学者奖励计划青年项目;信阳师范学院大学生科研基金项目(2017-DXS-088)

摘　　要：利用1951-2016年河南省17个气象站及1870-1950年中国东、中部地区14个站点建站以来的逐月平均气温资料,采用多元线性回归法重建了1870-2016年河南省逐年平均气温序列,并分析了其变化特征.结果表明:(1)过去147a河南省气候经历了"冷-暖-冷-暖"的多年代波动.(2)1870年以来,河南省年均温最快30a和50a增暖速率发生于1900-1929年(0.046±0.018℃/a)和1883-1932年(0.031±0.008℃/a);最快30a和50a降温速率出现在1928-1957年(-0.043±0.024℃/a)和1923-1972年(-0.026±0.010℃/a).20世纪后期的变化速率均未超过以前水平.(3)1870-2016年河南省年平均气温的变化周期以2~4a和64a为主.前者变化可能受海气相互作用(如ENSO事件)及平流层准2a震荡(QBO)驱动,后者可能受太平洋年代际震荡(PDO)的影响.Based on monthly temperature data obtained from 17 stations in the period of 1951-2016 in Henan and 14 stations in the period of 1870-1950 over central and eastern China,the annual mean temperature series of Henan province during the period of 1870-2016 were reconstructed by using multiple linear regression methods.The temporal characteristics were then analyzed by using moving linear regression and power spectrum analysis methods.The main conclusions were as follows：（1）the climate of Henan province showed a multidecadal＂cold-warm-cold-warm＂pattern;（2）from 1870 onwards,the strongest warming trends at 30-and 50-year scale were observed during 1900-1929 and 1883-1932,with the linear trends amounting to（0.046±0.018）℃/a and（0.031±0.008）℃/a,respectively.The largest cooling trends for the same scales were detected for 1928-1957 and 1923-1972,with the linear trends being（-0.043±0.024）℃/a and（-0.026±0.010）℃/a,respectively.Changing rates for the late-20 th century did not exceed the magnitude before;（3）during the period of 1870-2016,significant periodicity of 2~4 aand 64 awere detected over Henan province.The former periodicity was probably driven by ENSO and QBO,while the latter may be influenced by PDO.

关 键 词：温度重建 变化速率 准周期 气候变化 

分 类 号：P467[天文地球—大气科学及气象学]