1980—2009年中国东部上空温度变化特征

采用中国地区137个探空站及地面160站资料，分析了1980—2009年中国东部上空温度变化特征。近30年来中国东部对流层上层至平流层中下层的降温幅度大于对流层中下层的增温幅度。东北地区上空温度季节变化幅度较大，东南地区上空温度季节变化幅度较小。中国东部中低空（近地面至500 hPa）温度在不同区域、不同季节对全球变暖的响应不同：35°N以北无降温，以南有降温；冬季均升温，夏季有降温。

An Analysis on Upper-Air Temperature over Eastern China During 1980-2009

Based on the monthly datasets of 137 sounding stations in eastern China and 160 ground-based stations in whole China in the period of 1980-2009, the variation characteristics of the upper-air temperature over eastern China were analyzed. The results show that 1) the cooling rate in the upper troposphere and the mid-lower stratosphere in the past 30 years, was much more intensive than the warming rate in the mid-lower troposphere; 2) the amplitude of seasonal variation of temperature in northeast China was larger than that in southeast China; 3) in the mid-lower troposphere (from surface layer to 500 hPa) of eastern China, temperatures in different regions and different seasons had different responses to global warming, i.e. there was cooling in south of 35°N but warming in north of 35°N in summers, and the warming took place in winters over the whole study area.