Articles | Volume 20, issue 20
https://doi.org/10.5194/acp-20-11841-2020
https://doi.org/10.5194/acp-20-11841-2020
Research article
 | 
21 Oct 2020
Research article |  | 21 Oct 2020

Roll vortices induce new particle formation bursts in the planetary boundary layer

Janne Lampilahti, Hanna Elina Manninen, Katri Leino, Riikka Väänänen, Antti Manninen, Stephany Buenrostro Mazon, Tuomo Nieminen, Matti Leskinen, Joonas Enroth, Marja Bister, Sergej Zilitinkevich, Juha Kangasluoma, Heikki Järvinen, Veli-Matti Kerminen, Tuukka Petäjä, and Markku Kulmala

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Latest update: 14 Apr 2024
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Short summary
In this work, by using co-located airborne and ground-based measurements, we show that counter-rotating horizontal circulations in the planetary boundary layer (roll vortices) frequently enhance regional new particle formation or induce localized bursts of new particle formation. These observations can be explained by the ability of the rolls to efficiently lift low-volatile vapors emitted from the surface to the top of the boundary layer where new particle formation is more favorable.
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