Articles | Volume 5, issue 1
Research article
08 Feb 2024
Research article |  | 08 Feb 2024

Linking Gulf Stream air–sea interactions to the exceptional blocking episode in February 2019: a Lagrangian perspective

Marta Wenta, Christian M. Grams, Lukas Papritz, and Marc Federer

Data sets

ERA5 hourly data on single levels from 1940 to present H. Hersbach et al.

Short summary
Our study links air–sea interactions over the Gulf Stream to an atmospheric block in February 2019. We found that over 23 % of air masses that were lifted into the block by cyclones interacted with the Gulf Stream. As cyclones pass over the Gulf Stream, they cause intense surface evaporation events, preconditioning the environment for the development of cyclones. This implies that air–sea interactions over the Gulf Stream affect the large-scale dynamics in the North Atlantic–European region.