Articles | Volume 20, issue 15
Atmos. Chem. Phys., 20, 9331–9350, 2020
https://doi.org/10.5194/acp-20-9331-2020

Special issue: The SPARC Reanalysis Intercomparison Project (S-RIP) (ACP/ESSD...

Atmos. Chem. Phys., 20, 9331–9350, 2020
https://doi.org/10.5194/acp-20-9331-2020

Research article 10 Aug 2020

Research article | 10 Aug 2020

Lagrangian gravity wave spectra in the lower stratosphere of current (re)analyses

Aurélien Podglajen et al.

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Latest update: 12 Apr 2021
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Short summary
Thanks to the increase in resolution, numerical weather prediction models resolve a growing fraction of the gravity wave (GW) spectrum. Here, we assess the representation of Lagrangian GW fluctuations by comparing trajectories in the models to long-duration balloon observations. Most characteristics of the observed GW spectrum, such as near-inertial oscillations, are qualitatively present. However, the variability remains underestimated, emphasizing the continuous need for GW parameterizations.
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