the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Aerosol particle formation in the upper residual layer
Janne Lampilahti
Katri Leino
Antti Manninen
Pyry Poutanen
Anna Franck
Maija Peltola
Paula Hietala
Lisa Beck
Lubna Dada
Lauriane Quéléver
Ronja Öhrnberg
Ying Zhou
Madeleine Ekblom
Ville Vakkari
Sergej Zilitinkevich
Veli-Matti Kerminen
Tuukka Petäjä
Markku Kulmala
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We present a novel version of an aerosol number size distribution instrument, showcasing its capability to measure particle number concentration and particle number size distribution between 1 and 12 nm. Our results show that the instrument agrees well with existing instrumentation and allows for both the accurate measurement of the smallest particles and overlap with more conventional aerosol number size distribution instruments.
variantsof the model using an implausibility metric. Despite many compensating effects in the model, the procedure constrains the probability distributions of many parameters, and direct radiative forcing uncertainty is reduced by 34 %.
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Clouds over the Southern Ocean are crucial to Earth's energy balance, but understanding the factors that control them is complex. Our research examines how weather patterns affect tiny particles called cloud condensation nuclei (CCN), which influence cloud properties. Using data from Kennaook / Cape Grim, we found that winter air from Antarctica brings cleaner conditions with lower CCN, while summer patterns from Australia transport more particles. Precipitation also helps reduce CCN in winter.