重庆探空温度气候特征分析

利用1959~2009年重庆沙坪坝气象站地面和探空逐年气温观测资料,使用M-K突变检验等方法分析了近51年来重庆高空温度气候变化特征。结果表明：重庆地区地面温度同高空各层温度之间变化趋势有密切联系,这种联系随高度的增加逐步减小。从地面到高空,重庆气温都经历了＂先降温、后增温＂的变化趋势,但是没有明显的突变年份。从20世纪90年代开始,地面和高空都逐步转为增温趋势,且高空增温趋势早于地面。

Analysis on Sounding Temperature Climatic Features in Chongqing

By using the surface and sounding temperature data of Shapingba Meteorological Observation Station in Chongqing from 1959 to 2009 and M-K mutation method,Chongqing temperature climatic variation characteristics in recent 51 years are analyzed,the results show that there is a close relation between the surface temperature and sky temperature in Chongqing,and the strength of the relation decreases with the altitude increasing.There is a trend of decreasing-increasing in the surface and sky temperature,but the change year is not obvious.There is an evolutional trend of increasing with the surface and sky temperature since 1990s,and the trend in the sky is earlier than on the ground.