当前位置: 首页 > 文章 > 近47年阿勒泰地区云量气候变化特征分析 安徽农学通报(下半月刊) 2010,16 (18) 153-155
Position: Home > Articles > Analysis on Variation Characteristics of the Cloudiness in Recent 47 Years in Aletai Area 2010,16 (18) 153-155

近47年阿勒泰地区云量气候变化特征分析

作  者:
齐贵英
单  位:
阿勒泰地区气象台
关键词:
总云量;低云量;EOF分析
摘  要:
利用近47年阿勒泰地区7个气象站观测资料,使用EOF分析方法对阿勒泰地区云量进行分析。结果表明:年平均云量和四季云量的第1特征向量均为正值,能较好的反应出相应云量的平均变化;总云量除秋季为减少外,其余时间均在增加,但趋势不显著;低云量增加的趋势显著,但没有明显的区域对应;大部地区总云量与气温呈反相关,与降水呈正相关,低云量与气温和降水都呈正相关,但显著程度有所差别。
译  名:
Analysis on Variation Characteristics of the Cloudiness in Recent 47 Years in Aletai Area
作  者:
Qi Guiying(Aletai Meteorological Observatory,Aletai 836500,China)
关键词:
Total cloudiness;Low cloudiness;EOF analysis
摘  要:
Based on the observational data of the Aletai area from 1962-2008,the cloudiness are analyzed and studied by using the method of empirical orthogonal functio(nEOF).Results show that the first eigenvector values of the cloudiness are positive in four seasons.The temporal coefficients of the first eigenvectors can reflect the variation of the cloud cover change.The total cloudiness in Aletai exhibits a decreasing tendency except in autumn.The low cloudiness shows an increasing tendency,but no obviously region.There is a negative relation between the total cloudiness and the temperature,and a positive relation between the total cloudiness and the precipitation.There is a positive relation between the low cloudiness and the temperature or the precipitation.But the regions are significant differences.

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