Articles | Volume 21, issue 2
Atmos. Chem. Phys., 21, 657–664, 2021
https://doi.org/10.5194/acp-21-657-2021
Atmos. Chem. Phys., 21, 657–664, 2021
https://doi.org/10.5194/acp-21-657-2021

Research article 18 Jan 2021

Research article | 18 Jan 2021

Towards parameterising atmospheric concentrations of ice-nucleating particles active at moderate supercooling

Claudia Mignani et al.

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Latest update: 06 Dec 2021
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Short summary
Most precipitation above land starts with ice in clouds. It is promoted by extremely rare particles. Some ice-nucleating particles (INPs) cause cloud droplets to already freeze above −15°C, a temperature at which many clouds begin to snow. We found that the abundance of such INPs among other particles of similar size is highest in precipitating air masses and lowest when air carries desert dust. This brings us closer to understanding the interactions between land, clouds, and precipitation.
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