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当前位置: 首页 > 文章 > 近55年渭河流域气温演变规律分析 中国农业气象 2013,34 (5) 512-518
Position: Home > Articles > Analysis on Spatio-Temporal Variation of Temperature in Weihe River Basin in Recent 55 Years Chinese Journal of Agrometeorology 2013,34 (5) 512-518

近55年渭河流域气温演变规律分析

作  者：
王帅;李院生;张峰
单  位：
天津大学建筑工程学院;济南市环境保护规划设计研究院;南水北调中线干线工程建设管理局信息工程建设部
关键词：
Mann-Kendall检验;Pettitt法;Morlet小波分析;气温;渭河流域
摘  要：
利用渭河流域16个气象站点1954-2008年近55a气象资料,采用线性回归、Mann-Kendall检验、Pettitt及Morlet小波分析等方法,对渭河流域年及各季节平均气温的变化趋势、突变特征和周期性等演变规律进行分析。结果表明,(1)在95%的置信区间下,渭河流域年及各季节平均气温均表现为显著上升趋势,其中冬季气温上升最显著。(2)多年平均气温空间分布存在不均衡性,年平均气温以西安站为中心向外呈辐射递减。(3)年及各季平均气温存在明显的突变点,1993年为该流域大的气温转折年。(4)流域气温变化存在多个特征时间尺度,其中年平均气温具有3、7、23和55a左右的主周期,以55a左右周期相位变化最显著。除夏季外,其余季节与年平均气温相位变化时间尺度大体一致。研究成果可为分析渭河流域气候变化及其未来气候预测提供参考。
译  名：
Analysis on Spatio-Temporal Variation of Temperature in Weihe River Basin in Recent 55 Years
作  者：
WANG Shuai;LI Yuan-sheng;ZHANG Feng;School of Civil Engineering,Tianjin University;CCCC Planning and Design Institute for Water Transportation Co.Ltd.;Department of Information Engineering Construction,Construction Authority of Middle Route Project of the South to-north Water Transfer;Jinan Environmental Protection Planning & Design Research Institute;
关键词：
Mann-Kendall test;;Pettitt;;Morlet wavelet analysis;;Temperature;;Weihe river basin
摘  要：
Based on the meteorological data of 16 stations in Weihe river basin during recent 55 years (1954-2008),and using the methods of linear regression,Mann-Kendall test,Pettitt test and Morlet wavelet analysis,the variation characteristics of tendency,mutability and periodicity for the annual and seasonal mean temperature were analyzed.The results showed, (1) in the 95% confidence interval,the annual and seasonal mean temperature presented significant rising trends,and the temperature rose highest in winter. (2) There was an irregular spatial distribution of annual mean temperature,which showed a decreasing trend from the centre near the Xi'an station to all directions. (3)The annual and seasonal mean temperature had significant abrupt changes and 1993 was a watershed year for the river basin. (4) The annual mean temperature existed multiple time scale features,with the principal periods of about 3,7,23 and 55 years,and the phase change of 55 years period was the most obvious.Except in summer,the time scale features of mean temperature in other seasons were roughly consistent with those in annual.The research results provide reference for analysis and predictions of the climate change in Weihe river basin.

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