| 陕北地区冬季气温的时空变化特征分析 |
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| 引用本文： | 张宁,张明军,周堂,王圣杰.陕北地区冬季气温的时空变化特征分析[J].干旱区资源与环境,2011(11):132-137. |
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| 作者姓名： | 张宁 张明军 周堂 王圣杰 |
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| 作者单位： | 西北师范大学地理与环境科学学院;中国科学院寒区旱区环境与工程研究所; |
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| 基金项目： | 国家自然科学基金项目(40701035,40631001,40571033); 教育部新世纪优秀人才支持计划(NCET-10-0019); 霍英东教育基金(101019); 西北师范大学知识与科技创新工程科研骨干培育项目(NWNU-KJCXGC-03-45);西北师范大学自然地理学省级重点学科资助 |
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| 摘 要： | 根据1960-2009年陕北地区逐月气温资料,运用Mann-Kendall法、小波分析、空间插值等方法,对陕北地区近50年来冬季气温的时空分布特征和突变、周期变化规律进行了分析。结果表明：冬季气温总体上呈现增暖的趋势,其线性增长率为0.55℃/10a,相当于近50年冬季气温升高了2.76℃。冬季气温存在15、10 a和...
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| 关 键 词： | 冬季气温 小波分析 Mann-Kendall法 空间分布 陕北地区 |
The spatiotemporal variation characteristics of winter temperature in northern Shaanxi Region |
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| ZHANG Ning,ZHANG Mingjun,ZHOU Tang,WANG Shengjie.The spatiotemporal variation characteristics of winter temperature in northern Shaanxi Region[J].Journal of Arid Land Resources and Environment,2011(11):132-137. |
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| Authors: | ZHANG Ning ZHANG Mingjun ZHOU Tang WANG Shengjie |
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| Institution: | ZHANG Ning1,ZHANG Mingjun1,2,ZHOU Tang1,WANG Shengjie1(1.Geography and Environmental Sciences College,Northwest Normal University,Lanzhou 730070,P.R.China,2.Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou 730000,P.R.China) |
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| Abstract: | The meteorological data from 1960 to 2009 were analyzed to understand the spatial-temporal characteristics about temperature variation in winter over Shanbei Region,by employing the approach of linear trend analysis as well as Mann-Kendall rank analysis,wavelet analysis and spatial interpolation.It was observed that there was an obvious ascending tendency of winter air temperature from 1960 to 2009 in this region,with a warming rate of 0.55℃/10a in winter.The result indicated that the winter temperature of this region increased by 2.76℃ in the last five decades.Meanwhile,in the last half century,there was typical oscillation such as 6a,10a and 15a in winter temperature variation,particularly,the15a oscillation dominated.During the study period,there was a lowest average winter temperature point in 1967 and a highest one in 2001 with an abrupt change point in 1988,after it a warm stage emerged especially after 1993.Spatial variation of winter temperature indicated that there was an obvious degressive tendency from south to north in the study area,and this distribution has a higher negative correlation with latitude. |
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| Keywords: | winter temperature wavelet analysis Mann-Kendall method spatial distribution northern Shaanxi Region |
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