吉林地区对流层温度变化特征分析

利用吉林地区高空探测站长春、延吉、临江1960-2009年地面至100 hPa高度标准等压面(共8层)温度资料，通过线性趋势分析方法，对吉林地区地面到100 hPa高度各标准等压面温度的变化进行分析。结果表明:在全球变暖背景下，吉林地区对流层年温度在700 hPa高度以下是上升趋势，400 hPa高度以上温度趋势是下降的。各季温度趋势变化各有不同，秋季和冬季在400 hPa高度以下温度趋势是升温的；春季和夏季700 hPa高度以下温度趋势是上升的，且温度趋势上升的幅度明显小于秋、冬季。城市规模的不同，温度上升趋势也不相同，大城市长春的升温幅度高于中、小城市的升温幅度；在各标准层中长春升温达到的高度高于中、小城市。

Analysis of tropospheric temperature characteristics in Jilin province

Using the temperature data from radiosonde station in Changchun, Yanji and Linjiang of Jilin province during 1960 to 2009, the variations of the standard isobaric surface temperature（ 8 levels）from ground to 100 hPa were analyzed by a linear trend analysis method. The results show that under the global change background, annual tropospheric temperature below 700 hPa is in an increasing trend in Jilin province, while it is in a decreasing trend above 400 hPa. The seasonal change of tropospheric temperature is different. It ascends below 400 hPa in autumn and winter and below 700 hPa in spring and summer. The ascending amplitude of tropospheric temperature is grea- ter in autumn and winter than in spring and summer. The ascending trend of tropospheric temperature differs for different size cities. The ascending amplitude is greater in the large city （Changchun） than in the middle and small cities. The height that warming could reach in the different standard layers is higher in Changchun than in the mid- die and small cities.