Vertical Atmospheric Structure of the Late Summer Clear Days over the East Gansu Loess Plateau in China  

作　　者：韦志刚 文军 李振朝 

机构地区：[1]Laboratory for Climate Environment and Disasters of Western China,Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou 730000

出　　处：《Advances in Atmospheric Sciences》2009年第3期381-389,共9页大气科学进展（英文版）

基　　金：funded by the Centurial Program sponsored by the Chinese Academy of Sciences (Grant No. 2004406);the Project KZCX2-YW-220;Program of Knowledge Innovation for the 3rd period of the Chinese Academy of Sciences;the National Natural Science Foundation of China (Grant No. 40730952);the Field Station Foundation of the Chinese Academy of the Sciences

摘　　要：In this paper, by using the sounding data collected in LOPEX05, we have analyzed the vertical atmospheric structure and boundary layer characteristics of temperature and humidity in the late summer over the east Gansu loess plateau. The results show that the bottom of the stratosphere is at about 16 500 m and varies between 14 000 m and 18 000 m above the ground. The center of the westerly jet is located between 8300 m and 14 300 m above the ground and its direction moves between 260~ and 305~. There is an inverse humidity layer at about 3000 m height above the ground. The maximum of the air temperature occurs at 1700 LST in the layer below 800 m above the ground. The inversion layer is relatively thick. The time that the maximum of the vapor occurs is not the same for different layers. The depth of the atmospheric boundary layer can reach about 1000 m and the depth of the stable boundary layer can be 650 m.In this paper, by using the sounding data collected in LOPEX05, we have analyzed the vertical atmospheric structure and boundary layer characteristics of temperature and humidity in the late summer over the east Gansu loess plateau. The results show that the bottom of the stratosphere is at about 16 500 m and varies between 14 000 m and 18 000 m above the ground. The center of the westerly jet is located between 8300 m and 14 300 m above the ground and its direction moves between 260~ and 305~. There is an inverse humidity layer at about 3000 m height above the ground. The maximum of the air temperature occurs at 1700 LST in the layer below 800 m above the ground. The inversion layer is relatively thick. The time that the maximum of the vapor occurs is not the same for different layers. The depth of the atmospheric boundary layer can reach about 1000 m and the depth of the stable boundary layer can be 650 m.

关 键 词：atmospheric structure boundary layer characteristics the Chinese Loess Plateau 

分 类 号：P423.5[天文地球—大气科学及气象学]