Articles | Volume 5, issue 3
https://doi.org/10.5194/wcd-5-1061-2024
https://doi.org/10.5194/wcd-5-1061-2024
Research article
 | 
04 Sep 2024
Research article |  | 04 Sep 2024

A new characterisation of the North Atlantic eddy-driven jet using two-dimensional moment analysis

Jacob Perez, Amanda C. Maycock, Stephen D. Griffiths, Steven C. Hardiman, and Christine M. McKenna

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Cited articles

Auestad, H., Spensberger, C., Marcheggiani, A., Ceppi, P., Spengler, T., and Woollings, T.: Spatio-temporal filtering of jets obscures the reinforcement of baroclinicity by latent heating, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2024-597, 2024. a
Baker, L. H., Shaffrey, L. C., Sutton, R. T., Weisheimer, A., and Scaife, A. A.: An Intercomparison of Skill and Overconfidence/Underconfidence of the Wintertime North Atlantic Oscillation in Multimodel Seasonal Forecasts, Geophys. Res. Lett., 45, 7808–7817, https://doi.org/10.1029/2018GL078838, 2018. a
Barnes, E. A. and Hartmann, D. L.: Dynamical Feedbacks and the Persistence of the NAO, J. Atmos. Sci., 67, 851–865, https://doi.org/10.1175/2009jas3193.1, 2010. a
Barriopedro, D., Ayarzagüena, B., García-Burgos, M., and García-Herrera, R.: A multi-parametric perspective of the North Atlantic eddy-driven jet, Clim. Dynam., 61, 375–397, https://doi.org/10.1007/s00382-022-06574-w, 2022. a, b, c, d, e, f
Brayshaw, D. J., Hoskins, B., and Blackburn, M.: The Basic Ingredients of the North Atlantic Storm Track. Part I: Land–Sea Contrast and Orography, J. Atmos. Sci., 66, 2539–2558, https://doi.org/10.1175/2009jas3078.1, 2009. a
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Short summary
This study assesses existing methods for identifying the position and tilt of the North Atlantic eddy-driven jet, proposing a new feature-based approach. The new method overcomes limitations of other methods, offering a more robust characterisation. Contrary to prior findings, the distribution of daily latitudes shows no distinct multi-modal structure, challenging the notion of preferred jet stream latitudes or regimes. This research enhances our understanding of North Atlantic dynamics.