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中文摘要：
通过对青藏高原东部地区近几年部分探空资料的分析，得出了一些有意义的结论。结果表明：冬季，青藏高原东侧地区在对流层下部存在明显的逆温现象，在逆温层之下，大气相对湿度大，水汽随高度减小的幅度小，大气处于中性层结状况；在此逆温层之上，大气相对湿度小。在逆温层底部有大量的水汽堆积，在空中形成明显的逆湿层，而在高原主体上并没有此逆温层的存在，高原东侧各站逆温层底的高度差别不大。夏季，青藏高原东侧地区20时可以存在明显的混合层，混合层的高度在成都站最小，重庆站最大，而高原主体混合层高度大于东侧地区。旱年混合层高度大于涝年。8时和20时，冬季大气温、湿垂直特性变化不明显，而夏季具有明显的变化。夏季，降水过程明显抑制混合层的发展，在暴雨过程及其前后，混合层有明显的成熟、消亡、重新建立的特征。
英文摘要：
In this paper, the boundary layer characteristics in east part of Tibetan Plateau （TP） were investigated by using the radiosonde data. The results indicate that there is a distinct inversion layer of air temperature in the lower troposphere in winter. Under the inversion layer of air temperature, there is a high relative humidity, water vapor change little as the increas- ing of height and the air is under the status of neutral stratification, but there is a low relative humidity under this layer. On the bottom of the inversion layer of air temperature, whose height are almost the same in the lower reach of TP, a mass of water va- por deposit here and form a inversion layer of specific humidity, but this phenomenon is not found in the main body of TP. In summer, there is a mature mix layer whose height is lowest at Chengdu, hut the highest at Chongqing in the lower reach of TP, and they were lower than the height in the main body of TP. The height of mix layer in flood years are lower than in drought years. The vertical characteristics of air temperature and humidity have little differences between morning and night in winter, but this is not the case of summer. The rainfall will restrain the development of mix layer which has a feature of mature, die and rebuild fore - and - aft the duration of rainfall.
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A new analytical model for thermal stresses in multi-phase materials and lifetime prediction methods
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