The effects of atmospheric stability intensity on the movement of windblown sand |
| |
| Authors: | Ping Lü Zhibao Dong |
| |
| Institution: | (1) College of Atmospheric Sciences, Lanzhou University, 730000 Lanzhou, Gansu Province, People’s Republic of China;(2) Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, No. 320, West Donggang Road, 730000 Lanzhou, Gansu Province, People’s Republic of China |
| |
| Abstract: | Using a model that couples wind flow with the motion of sand particles under different atmospheric stability intensities,
this paper studied the effects of atmospheric stability on the trajectory and velocity of sand particles in the saltation
layer, and the duration before a steady state was achieved. The vertical velocity, horizontal distance, and the maximum height
of saltating sand particles increased with increasingly negative stability intensity under unstable conditions. The wind–sand
flow reached equilibrium more quickly with increasingly negative stability intensity under unstable conditions, but reached
equilibrium more slowly with increasing stability intensity under stable conditions. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
