Articles | Volume 7, issue 2
https://doi.org/10.5194/wcd-7-937-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/wcd-7-937-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
15 Jun 2026
Research article |
| 15 Jun 2026
| 15 Jun 2026
A quasi-Lagrangian perspective on the role of dry and moist processes in the formation of blocked North Atlantic–European weather regimes
Seraphine Hauser
CORRESPONDING AUTHOR
Institute of Meteorology and Climate Research (IMKTRO), Department Troposphere Research, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
Institute for Atmospheric and Climate Science, ETH Zurich, Zurich, Switzerland
Franziska Teubler
Institute for Atmospheric Physics, Johannes Gutenberg-University Mainz, Mainz, Germany
Michael Riemer
Institute for Atmospheric Physics, Johannes Gutenberg-University Mainz, Mainz, Germany
Christian M. Grams
Institute of Meteorology and Climate Research (IMKTRO), Department Troposphere Research, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
Federal Institute of Meteorology and Climatology, MeteoSwiss, Zurich-Flughafen, Switzerland
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Short summary
The relative roles of dry and moist processes in blocking formation are still not well understood, especially across different blocking types and regions. Using a potential vorticity framework, we study the evolution of large-scale anticyclonic circulation anomalies that are linked to four distinct blocking patterns. We find that the development of anomaly amplitude is shaped mainly by their pathway, which determines the balance between dry and moist contributions, rather than the blocking type.
The relative roles of dry and moist processes in blocking formation are still not well...
