Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 36, issue 1
Articles | Volume 36, issue 1
https://doi.org/10.5194/angeo-36-181-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/angeo-36-181-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 36, issue 1
Regular paper
 | 
31 Jan 2018
Regular paper |  | 31 Jan 2018

Longitudinal structure of stationary planetary waves in the middle atmosphere – extraordinary years

Jan Lastovicka, Peter Krizan, and Michal Kozubek

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Short summary
The longitudinal structure in geopotential heights and meridional wind is analysed for 1979–2013 in order to find its persistence and altitudinal dependence with focus on anomalous years. Substantial deviations from the average pattern are studied for Januaries – typically the second (Euro-Atlantic) peak extends to much higher altitudes than usual. The decisive role in the existence of anomalous years appears to be played by the stationary planetary wave filtering by the zonal wind pattern.
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