Nonlinear Processes in Geophysics
Nonlinear Processes in Geophysics
NPG
Articles | Volume 32, issue 1
Articles | Volume 32, issue 1
https://doi.org/10.5194/npg-32-51-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/npg-32-51-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 32, issue 1
Research article
 | Highlight paper
 | 
27 Feb 2025
Research article | Highlight paper |  | 27 Feb 2025

Assessing Lagrangian coherence in atmospheric blocking

Henry Schoeller, Robin Chemnitz, Péter Koltai, Maximilian Engel, and Stephan Pfahl

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This is a new and timely contribution to the blocking phenomena in atmospheric circulation and extremes that result. The latter are stimulating and of fairly general interest to the non-linear geoscience community and beyond.
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Short summary
We identify spatially coherent air streams into atmospheric blockings, which are important weather phenomena. By adapting mathematical methods to the atmosphere, we confirm previous findings. Our work shows that spatially coherent air streams featuring cloud formation correlate with strengthening of the blocking. The developed framework also allows for statements about the spatial behavior of the air parcels as a whole and indicates that blockings reduce the dispersion of the air parcels.
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