濮阳市最高气温和最低气温非对称变化趋势分析

提要：运用1960-2008年以来濮阳逐月和年平均最高、平均最低以及平均气温和相应的极端气温资料，借助线性分析和年代跃变分析的方法，研究其长期变化趋势和年际变化，结果表明：濮阳的夏季平均最高气温呈下降趋势、冬季最低气温和年平均气温呈现明显上升趋势，冬季增温主要在夜间，夏季降温主要在白天。全年的平均增温主要是由冬季夜间引起的。

THE ASYMMETRIC TREND OF CHANGE IN MAXIMUM AND MINMUM TEMPERATURE IN BEIJING

Making use of over 1960-2008 years Pu Yang the every month and year is the on the average tallest, average lowest and average air temperature and homologous of extreme air temperature data, using the analysis line and age jump to become an analytical method and study it to change trend and year border variety over a long period of time, result enunciation： Pu Yang＇ s summer average tallest air temperature present to descend trend, the lowest air temperature and year average air temperature present obvious up-trend in winter, in winter incalescence mainly in the nighttime, reduce the heat mainly in summer on daytime. The average incalescence in whole year mainly from winter the nighttime cause.