Aircraft Observations of Turbulence in Cloudy and Cloud Free Boundary Layers Over the Western North Atlantic Ocean From ACTIVATE and Implications for the Earth System Model Evaluation and Development

This study examines boundary layer turbulence derived from high temporal resolution meteorological measurements from 40 research flights over the western North Atlantic Ocean during the 2020 deployments of ACTIVATE. Frequency distributions of various turbulent quantities reveal stronger turbulence d...

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Bibliographic Details
Published in:Journal of Geophysical Research: Atmospheres
Main Authors: Brunke, Michael A., Cutler, Lauren, Urzua, Rodrigo Delgado, Corral, Andrea F., Crosbie, Ewan C., Hair, Johnathan, Hostetler, Chris, Kirschler, Simon, Larson, Vincent, Li, Xiang‐Yu, Ma, Po‐Lun, Minke, Annalisa, Moore, Richard H., Robinson, Claire E., Scarino, Amy Jo, Schlosser, Joseph, Shook, Michael, Sorooshian, Armin, Lee Thornhill, Kenneth, Voigt, Christiane, Wan, Hui, Wang, Hailong, Winstead, Edward, Zeng, Xubin, Zhang, Shixuan, Ziemba, Luke D.
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 2022
Subjects:
Wolkenphysik
North Atlantic
Online Access:https://elib.dlr.de/191107/
https://elib.dlr.de/191107/1/Brunke_JGR_2022.pdf
https://doi.org/10.1029/2022JD036480
Description
Summary:This study examines boundary layer turbulence derived from high temporal resolution meteorological measurements from 40 research flights over the western North Atlantic Ocean during the 2020 deployments of ACTIVATE. Frequency distributions of various turbulent quantities reveal stronger turbulence during the winter deployment than in summer and for cloud-topped than in cloud-free boundary layers during the summer deployment. Maximum turbulence kinetic energy is most often within cloud from observations in winter and summer, whereas it is mostly below cloud in both seasons by a global model turbulence parameterization.

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