摘要
利用成都平原中西部 5个气象观测站的降水、温度和日照资料 ,分析了成都平原中西部降水、温度和日照的分布规律、气候特征及其变化 ,得出以上地区年平均气温存在准 4年的振动周期 ;1990年以来大部分地区存在降水减少 ,气温升高 。
The climatic features and changes, the precipitation distribution, the temperature and the sunlight are analyzed with the data of five weather stations in the middle and western Chengdu Plain. The results show that the mean temperature is of quasi four year oscillation period, the precipitation and sunshine is decreased and the air temperature is increased since 1990's in this area.
出处
《成都信息工程学院学报》
2004年第2期223-231,共9页
Journal of Chengdu University of Information Technology
关键词
成都平原
气候特征
气候变化
谱分析
Chengdu Plain
climatic feature
climatic change
spectrum analysis
