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


doi: 10.1007/s00376-009-0381-9

  • 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 16500 m and varies between 14000 m and 18000 m above the ground. The center of the westerly jet is located between 8300 m and 14300 m above the ground and its direction moves between 260o and 305o. 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.
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Manuscript History

Manuscript received: 10 May 2009
Manuscript revised: 10 May 2009
通讯作者: 陈斌, bchen63@163.com
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Vertical Atmospheric Structure of the Late Summer Clear Days over the East Gansu Loess Plateau in China

  • 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;Laboratory for Climate Environment and Disasters of Western China, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000;Laboratory for Climate Environment and Disasters of Western China, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000

Abstract: 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 16500 m and varies between 14000 m and 18000 m above the ground. The center of the westerly jet is located between 8300 m and 14300 m above the ground and its direction moves between 260o and 305o. 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.

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