Articles | Volume 22, issue 13
https://doi.org/10.5194/acp-22-8973-2022
https://doi.org/10.5194/acp-22-8973-2022
Research article
 | 
12 Jul 2022
Research article |  | 12 Jul 2022

Do Arctic mixed-phase clouds sometimes dissipate due to insufficient aerosol? Evidence from comparisons between observations and idealized simulations

Lucas J. Sterzinger, Joseph Sedlar, Heather Guy, Ryan R. Neely III, and Adele L. Igel

Data sets

RAMS Horizontally-averaged model output and namelists Lucas Sterzinger https://doi.org/10.5281/zenodo.6600103

lsterzinger/Arctic-Rams-6.1.22 Lucas Sterzinger https://doi.org/10.5281/zenodo.6418998

Model code and software

Reproducible Plotting Code Lucas Sterzinger https://doi.org/10.5281/zenodo.6599840

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Short summary
Aerosol particles are required for cloud droplets to form, and the Arctic atmosphere often has much fewer aerosols than at lower latitudes. In this study, we investigate whether aerosol concentrations can drop so low as to no longer support a cloud. We use observations to initialize idealized model simulations to investigate a worst-case scenario where all aerosol is removed from the environment instantaneously. We find that this mechanism is possible in two cases and is unlikely in the third.
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