Articles | Volume 19, issue 24
https://doi.org/10.5194/acp-19-15431-2019
https://doi.org/10.5194/acp-19-15431-2019
Research article
 | 
17 Dec 2019
Research article |  | 17 Dec 2019

Long-lived high-frequency gravity waves in the atmospheric boundary layer: observations and simulations

Mingjiao Jia, Jinlong Yuan, Chong Wang, Haiyun Xia, Yunbin Wu, Lijie Zhao, Tianwen Wei, Jianfei Wu, Lu Wang, Sheng-Yang Gu, Liqun Liu, Dachun Lu, Rulong Chen, Xianghui Xue, and Xiankang Dou

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Latest update: 21 Sep 2023
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Short summary
Gravitational waves (GWs) with periods ranging from 10 to 30 min over 10 h and 20 wave cycles are detected within a 2 km height in the atmospheric boundary layer (ABL) by a coherent Doppler wind lidar. Observations and computational fluid dynamics (CFD) simulations lead to a conclusion that the GWs are excited by the wind shear of a low-level jet under the condition of light horizontal wind. The GWs are trapped in the ABL due to a combination of thermal and Doppler ducts.
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