中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
渭河流域降水和气温的时空特征分析

文献类型:期刊论文

作者何毅 ; 王飞 ; 穆兴民 ; 白桦 ; 蒋冲 ; 李锐
刊名水土保持通报
出版日期2012
卷号32期号:04页码:102-105
关键词气候变化 limate change 时空特征 temporal and spatial characteristics 渭河流域 Weihe River basin
其他题名Temporal and Spatial Characteristics of Temperature and
中文摘要降水和气温等气候要素对农业生产具有显著影响。根据1957—2009年渭河流域内12个代表性气象站点53a的降水和气温实测资料,采用传统统计、经验正交函数分解(EOF分析)和小波分析等方法,讨论了渭河流域降水量和气温的空间分布特征,并分析了其周期变化特点。结果表明:(1)受大尺度天气系统影响,流域降水量和气温异常的一致性是主要特点,也存在南北差异和东西差异;(2)年降水量主要存在30a或更大的周期变化特征,而年平均气温、年平均最低气温和年平均最高气温主要存在29a或更大的周期变化特征。
英文摘要Abstract:Climate factors including precipitation and temperature have significant effects on agricultural production.
Traditional statistics,EOF analysis and wavelet analysis were applied to analyze the characteristics
of periodic variations and spatial distribution of precipitation and temperature in this region based on data collected
 at the 12weather stations in Weihe River basin during 1957—2009.The results show that:(1)The
precipitation and temperature in the basin is affected by larger scale weather systems.The abnormity of precipitation
 and temperature in Weihe River basin were simultaneous,and the abnormity of precipitation and
temperature differed between south and north,and in the east and west.(2)Morlet wavelet transform indicated
 that the major periods for precipitation was about 30years or more,while the main periods for annual
mean temperature and mean maximum temperature were about 29years or more.
语种中文
公开日期2014-06-26
源URL[http://ir.iswc.ac.cn/handle/361005/5346]  
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,等. 渭河流域降水和气温的时空特征分析[J]. 水土保持通报,2012,32(04):102-105.
APA 何毅,王飞,穆兴民,白桦,蒋冲,&李锐.(2012).渭河流域降水和气温的时空特征分析.水土保持通报,32(04),102-105.
MLA 何毅,et al."渭河流域降水和气温的时空特征分析".水土保持通报 32.04(2012):102-105.

入库方式: OAI收割

来源:水土保持研究所

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