Publication Abstracts

Menzel et al. 2024

Menzel, M.E., D. Waugh, Z. Wu, and T. Reichler, 2024: Replicating the Hadley Cell and subtropical jet disconnect in idealized atmospheric models. Weather Clim. Dynam., 5, no. 1, 251-261, doi:10.5194/wcd-5-251-2024.

Recent work has shown that variability of the subtropical jet's (STJ) latitude, φSTJ is not coupled to that of the Hadley Cell (HC) edge, φHC, but the robustness of this disconnect has not been examined in detail. Here, we use meteorological reanalysis, comprehensive climate models, and an idealized atmospheric model to determine the necessary processes for a disconnect between φHC and φSTJ in the Northern Hemisphere's December-January-February season. We find that a decoupling can occur in a dry general circulation model, indicating that large-scale dynamical processes are sufficient to reproduce the metrics' relationship. It is therefore not reliant on explicit variability in the zonal structure, convection, or radiation. Rather, the disconnect requires a sufficiently accurate climatological basic state. Further, we confirm that the robust disconnect between φSTJ and φHC across the model hierarchy reveals their differing sensitivities to midlatitude eddy momentum fluxes; φHC is consistently coupled to the latitude of maximum eddy momentum flux, but φSTJ is not.

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BibTeX Citation

@article{me04300i,
  author={Menzel, M. E. and Waugh, D. and Wu, Z. and Reichler, T.},
  title={Replicating the Hadley Cell and subtropical jet disconnect in idealized atmospheric models},
  year={2024},
  journal={Weather Clim. Dynam.},
  volume={5},
  number={1},
  pages={251--261},
  doi={10.5194/wcd-5-251-2024},
}

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RIS Citation

TY  - JOUR
ID  - me04300i
AU  - Menzel, M. E.
AU  - Waugh, D.
AU  - Wu, Z.
AU  - Reichler, T.
PY  - 2024
TI  - Replicating the Hadley Cell and subtropical jet disconnect in idealized atmospheric models
JA  - Weather Clim. Dynam.
VL  - 5
IS  - 1
SP  - 251
EP  - 261
DO  - 10.5194/wcd-5-251-2024
ER  -

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