Weather and Climate Dynamics
Weather and Climate Dynamics
WCD
Articles | Volume 5, issue 2
Articles | Volume 5, issue 2
https://doi.org/10.5194/wcd-5-633-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/wcd-5-633-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 5, issue 2
Research article
 | 
26 Apr 2024
Research article |  | 26 Apr 2024

Life cycle dynamics of Greenland blocking from a potential vorticity perspective

Seraphine Hauser, Franziska Teubler, Michael Riemer, Peter Knippertz, and Christian M. Grams

Supplement

https://doi.org/10.5194/wcd-5-633-2024-supplement

Data sets

EuLerian Identification of ascending AirStreams - ELIAS 2.0 Julian Quinting https://gitlab.kit.edu/julian.quinting/elias-2.0

ERA5 hourly data on pressure levels from 1940 to present H. Hersbach et al. https://doi.org/10.24381/cds.bd0915c6

Tracks of negative upper-tropospheric PV anomalies (PVAs−) over the Northern Hemisphere in ERA5 reanalysis (1979-2021), published 11 April 2024 Seraphine Hauser et al. https://doi.org/10.35097/nncxPGLAaaDgVKIW

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Short summary
Blocking over Greenland has substantial impacts on the weather and climate in mid- and high latitudes. This study applies a quasi-Lagrangian thinking on the dynamics of Greenland blocking and reveals two pathways of anticyclonic anomalies linked to the block. Moist processes were found to play a dominant role in the formation and maintenance of blocking. This emphasizes the necessity of the correct representation of moist processes in weather and climate models to realistically depict blocking.
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