烟台地区气温与降水量的关系

Relationship between Air Temperature and Precipitation in Yantai

关键词:  气温  降水量  相关分析

Key words:  air temperature  precipitation  correlation analysis

摘要:

利用烟台地区1960~1999年的气温和降水资料,分别统计年平均气温、年平均降水量以及春季、夏季、秋季、冬季的平均气温和平均降水量,并用Excel数据处理软件和统计学方法对获得的数据进行分析。结果表明:近40年来,年平均气温和各季平均气温均呈上升趋势,冬季变暖的幅度最大。降水量的变化较气温复杂,年降水量、夏和秋季降水量随温度上升趋于减少,并有显著性差异(α=0.01、α=0.01、α=0.05),暖干化趋势明显;春季降水量与气温相关性不明显;冬季降水量与气温满足二次回归方程P=4.5351t²+10.01t+32.426,当冬季气温偏(较)高时,降水量则随气温上升而增加,并达显著性水平(T=0.01)。

Abstract:

The annual average air temperature and preipitation,the seasonal average air temperature and preipitation which were obtained from the weather data of the period from 1960 to 1999 in Yantai,Shandong province,China,are analyzed by the software of Excel and the statistical method The results showed that the annual average air temperature and preiptation are increasing from 1960 to 1990,especially in autumn and winter The annual average preiptation,which changed more complex than the air temperature,are decreasing in summer and autumn as rises of the air temperature,where there is significant difference(α=0.1,α=0.01 and α=0.05 respectivey) between them,and the weather tended to be drier and warmer The correlation between precipitation and average air temperature in spring is not significant;but is significant at T=0.01 in winter,and expressed by the equation p=4.5351t²+2+10.01t+32.426 The precipitation increased as rises of the air temperature in the warmer winter which also has singificant difference (α=0.01)