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On Estimation of the Turbulent Mixing Layer Altitude from the Altitude-Time Distributions of the Richardson Number

On Estimation of the Turbulent Mixing Layer Altitude from the Altitude-Time Distributions of the... Time series of the turbulent mixing layer altitude derived from the altitude-time distributions of the turbulence kinetic energy dissipation rate and of the gradient Richardson number are compared. We have found that the estimates of the turbulent mixing layer altitude from the altitude-time distributions of the Richardson number and of the turbulence kinetic energy dissipation rate are close only under the conditions of atmospheric boundary layer instability due to convection. In other cases, the mixing layer altitude derived from the Richardson number can be significantly underestimated. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Atmospheric and Oceanic Optics Springer Journals

On Estimation of the Turbulent Mixing Layer Altitude from the Altitude-Time Distributions of the Richardson Number

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References (23)

Publisher
Springer Journals
Copyright
Copyright © Pleiades Publishing, Ltd. 2023. ISSN 1024-8560, Atmospheric and Oceanic Optics, 2023, Vol. 36, No. 1, pp. 30–40. © Pleiades Publishing, Ltd., 2023. Russian Text © The Author(s), 2022, published in Optika Atmosfery i Okeana.
ISSN
1024-8560
eISSN
2070-0393
DOI
10.1134/s1024856023020033
Publisher site
See Article on Publisher Site

Abstract

Time series of the turbulent mixing layer altitude derived from the altitude-time distributions of the turbulence kinetic energy dissipation rate and of the gradient Richardson number are compared. We have found that the estimates of the turbulent mixing layer altitude from the altitude-time distributions of the Richardson number and of the turbulence kinetic energy dissipation rate are close only under the conditions of atmospheric boundary layer instability due to convection. In other cases, the mixing layer altitude derived from the Richardson number can be significantly underestimated.

Journal

Atmospheric and Oceanic OpticsSpringer Journals

Published: Feb 1, 2023

Keywords: wind lidar; temperature profiler; turbulent mixing layer altitude; Richardson number; turbulent energy dissipation rate

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