Articles | Volume 22, issue 13
Atmos. Chem. Phys., 22, 8787–8803, 2022
https://doi.org/10.5194/acp-22-8787-2022
Atmos. Chem. Phys., 22, 8787–8803, 2022
https://doi.org/10.5194/acp-22-8787-2022
Research article
08 Jul 2022
Research article | 08 Jul 2022

Evolution of turbulent kinetic energy during the entire sandstorm process

Hongyou Liu et al.

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Subject: Dynamics | Research Activity: Field Measurements | Altitude Range: Troposphere | Science Focus: Physics (physical properties and processes)
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Cited articles

Adrian, R. J., Meinhart, C. D., and Tomkins, C. D.: Vortex organization in the outer region of the turbulent boundary layer, J. Fluid Mech., 422, 1–54​​​​​​​, https://doi.org/10.1017/s0022112000001580, 2000. a, b, c, d
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Balakumar, B. J. and Adrian, R. J.: Large- and very-large-scale motions in channel and boundary-layer flows, Philos. T. R. Soc. A, 365, 665–681, https://doi.org/10.1098/rsta.2006.1940, 2007. a, b, c, d, e, f
Cheng, X. L., Zeng, Q. C., and Hu, F.: Characteristics of gusty wind disturbances and turbulent fluctuations in windy atmospheric boundary layer behind cold fronts, J. Geophys. Res-Atmos., 116, D06101, https://doi.org/10.1029/2010jd015081, 2011. a
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The sandstorm, which is a common natural disaster, is mechanically characterized by a particle-laden flow experiencing wall turbulence. This work investigates a real sandstorm that was measured at the Qingtu Lake Observation Array through a lens of wall-turbulent flow dynamics. A non-stationary signal processing method is proposed based on the time-varying mean and adaptive segmented stationary method, and the evolution of turbulent kinetic energy during the entire sandstorm process is revealed.
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