渭河流域60年来气温变化特征与区域差异

CORC > 水土保持研究所 > 中国科学院水利部水土保持研究所 > 水保所知识产出(1956-2013)

	渭河流域60年来气温变化特征与区域差异
	何毅 ; 王飞 ; 穆兴民
刊名	干旱区资源与环境
	2012
卷号	26 期号:09 页码:14-21
关键词	气候变化 climate change 空间插值 spatial interpolation 气温 temperature 渭河流域 Weihe River basin Mann-Kendall检验 Mann － Kendall test
其他题名	Air temperature variation of Weihe river basin in recent 60 years and its regional
中文摘要	对渭河流域及其周边45个气象站点近60年的气温特征值,做空间插值、线性回归分析、气温突变分析和趋势分析。结果表明:1)1951～2009年间渭河流域年平均气温、年平均最低气温均呈显著上升趋势,年平均气温和年平均最低气温的的增温速率分别为0.252℃/10a和0.261℃/10a,年平均气温大于9℃区域所占流域总面积比,60年间上升34.78%;年平均最低气温大于3℃区域所占流域总面积比,60年间上升17.2%;2)年平均最高气温除1980s下降外,其余年代呈现上升趋势,增温速率为0.255℃/10a,其大于16℃区域所占流域总面积比,首先从1950s的46.27%下降至1980s的37.15%,而后又上升至2000年后的81.63%;3)年均温、年平均最低温和年平均最高温变化的转折点在1990年前后;4)气温日较差从1950s至1970s呈下降趋势,进入1980s后略有上升,其中气温日较差大于11℃区域所占流域总面积比,首先从1950s的55.96%下降至1980s的41.58%,而后又上升至2000年后的61.07%。
英文摘要	Based on the atmospheric temperature data of 45 stations in and around Wei River basin during 1951 ～ 2009，spatial interpolation，linear regressive analysis and climatic mutation analysis were applied to analyze the climate trend and so on． Results showed that: ( 1) The annual mean temperature and the minimum temperature of the basin showed a increasing trend，rising at the rates of 0． 252℃ /10a and 0． 261℃ /10a respectively． The proportion of the area where the average annual temperature was more than 9 increased by 34． 78% and where the average annual temperature was more than 9 increased by 34． 78% from 1951 to 2009． ( 2) Apart from the 1980s，the average annual maximum temperatures have been in an ascending trend，rising at the rates of 0． 255℃ /10a． The proportion of the area where the average annual maximum temperatures were more than 16℃ decreased from 46． 27% in 1950s to 37． 15% in 1980s，then increased to 81． 63% after 2000． ( 3) The turning points among the average annual temperature，the average minimum temperature and the average annual maximum temperature located around 1990． ( 4) Average diurnal range in temperature had a decreasing trend from 1950s to 1970s and the warming trends started in the 1980s． The proportion of the area where average diurnal range in temperature was more than 11℃ decreased from 55． 96% in 1950s to 41． 58% in 1980s，then increased to 61． 07% after 2000．
语种	中文
公开日期	2014-06-24
内容类型	期刊论文
源URL	[http://ir.iswc.ac.cn/handle/361005/5327]
专题	水土保持研究所_水保所知识产出(1956-2013)
推荐引用方式 GB/T 7714	何毅,王飞,穆兴民. 渭河流域60年来气温变化特征与区域差异[J]. 干旱区资源与环境,2012,26(09):14-21.
APA	何毅,王飞,&穆兴民.(2012).渭河流域60年来气温变化特征与区域差异.干旱区资源与环境,26(09),14-21.
MLA	何毅,et al."渭河流域60年来气温变化特征与区域差异".干旱区资源与环境 26.09(2012):14-21.