Articles | Volume 15, issue 5
https://doi.org/10.5194/amt-15-1185-2022
https://doi.org/10.5194/amt-15-1185-2022
Research article
 | 
08 Mar 2022
Research article |  | 08 Mar 2022

Low-level buoyancy as a tool to understand boundary layer transitions

Francesca M. Lappin, Tyler M. Bell, Elizabeth A. Pillar-Little, and Phillip B. Chilson

Data sets

University of Oklahoma CopterSonde Files from LAPSE-RATE (Version v1) B. R. Greene, T. M. Bell, E. A. Pillar-Little, A. R. Segales, G. Britto Hupsel de Azevedo, W. Doyle, D. D. Tripp, S. T. Kanneganti, and P. B. Chilson https://doi.org/10.5281/zenodo.3737087

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Short summary
This study evaluates how a classically defined variable, air parcel buoyancy, can be used to interpret transitions in the atmospheric boundary layer (ABL). To capture the high-resolution variations, remotely piloted aircraft systems are used to collect data in two field campaigns. This paper finds that buoyancy has distinct evolutions prior to low-level jet and convective initiation cases. Additionally, buoyancy mixes well to act as an ABL height indicator comparable to other methods.