摘要
利用河南省分布均匀的60个测站1961 2006年近46年的冬季气温资料,采用倾向率、EOF、M ann-Kendall非参数检验法等方法,对河南省冬季气温的空间分布、时间演变等特征进行了较详细分析,结果表明:河南省冬季气温呈上升趋势,平均气温倾向率为0.39℃/10 a,其中2月气温和夜间气温升温显著;冬季气温空间变化全省各地倾向率均为正值,其中豫北升幅大,豫西、西南升幅小;第一载荷向量显示全省冬季气温变化具有高度的一致性。
Using the winter temperature material collected from 60 observation stations which distributed homogeneously around the Henan province, we choose the incline rate method, EOF method and Mann -- Kendall non -- parametric method to analyze the characteristics of spatial distribution, variation over time of the winter temperature in Henan province in detail. The results show that the winter temperature is in uptrend. The average increase rate is about 0. 39℃/10a. Especially the temperature rise in night and day of February is remarkable. The increase rate of the space variety of the winter temperature all around the province is positive ; the increase extent is the bigger in north of the province, and it is relatively smaller in west and southwest of the province ; the first load vector demonstrates the entire province winter temperature change has the high uniformity.
出处
《气象与环境科学》
2008年第B09期27-29,共3页
Meteorological and Environmental Sciences
