摘要
通过分析１９５１年至１９９６年杭州逐年最高、最低气温，逐月、年平均温度，１月最低温度小于０℃日数、７月最高气温大于或等于３５℃日数等资料，研究了杭州４６年来气温的变化趋势，结果表明：杭州年平均气温呈上升趋势，线性增加率为１．０９℃／１００ａ，其中，秋、冬、春三季气温明显上升，１０月平均气温的线性增加率最大，为２．７０℃／１００ａ；夏季气温则呈下降趋势，７月平均气温的线性递减率最大，为－１．０８℃／１００ａ；气温变化总体是非对称的．
In this study ,the maximum,minimum and mean temperature data for Hangzhou from 1951 to 1996 are analyzed.The results show that temperature variations at Hangzhou are asymmetric.The annual temperature has shown a warming trend,especially during fall,winter and spring.The linear temperature increase rate is 1.09℃/100a for annual mean temperature and 2.70℃/100a for October.Conversely,the annual mean summer temperature has decreased.The linear increase rate is -1.08℃/100a for July.
出处
《科技通报》
1997年第6期393-397,共5页
Bulletin of Science and Technology
关键词
气温
增暖趋势
趋势
杭州市
非对称变化
temperature,warming trend,asymmetric variation,Hangzhou
