Articles | Volume 21, issue 14
https://doi.org/10.5194/acp-21-10993-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-21-10993-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
20 Jul 2021
Research article |
| 20 Jul 2021
| 20 Jul 2021
On the drivers of droplet variability in alpine mixed-phase clouds
Paraskevi Georgakaki
Laboratory of Atmospheric Processes and their Impacts, School of
Architecture, Civil & Environmental Engineering, École Polytechnique
Fédérale de Lausanne, Lausanne 1015, Switzerland
Aikaterini Bougiatioti
Institute for Environmental Research & Sustainable Development,
National Observatory of Athens, P. Penteli 15236, Greece
Jörg Wieder
Department of Environmental Systems Science, Institute for Atmospheric and Climate Science, ETH Zurich, Zurich 8092, Switzerland
Claudia Mignani
Department of Environmental Sciences, University of Basel, Basel
4056, Switzerland
Fabiola Ramelli
Department of Environmental Systems Science, Institute for Atmospheric and Climate Science, ETH Zurich, Zurich 8092, Switzerland
Zamin A. Kanji
Department of Environmental Systems Science, Institute for Atmospheric and Climate Science, ETH Zurich, Zurich 8092, Switzerland
Jan Henneberger
Department of Environmental Systems Science, Institute for Atmospheric and Climate Science, ETH Zurich, Zurich 8092, Switzerland
Maxime Hervo
Federal Office of Meteorology and Climatology, MeteoSwiss, Payerne
1530, Switzerland
Alexis Berne
Environmental Remote Sensing Laboratory, School of Architecture, Civil & Environmental Engineering, École Polytechnique Fédérale de Lausanne, Lausanne 1015, Switzerland
Ulrike Lohmann
Department of Environmental Systems Science, Institute for Atmospheric and Climate Science, ETH Zurich, Zurich 8092, Switzerland
Athanasios Nenes
CORRESPONDING AUTHOR
Laboratory of Atmospheric Processes and their Impacts, School of
Architecture, Civil & Environmental Engineering, École Polytechnique
Fédérale de Lausanne, Lausanne 1015, Switzerland
Center for Studies of Air Quality and Climate Change, Institute of
Chemical Engineering Sciences, Foundation for Research and Technology Hellas, Patras 26504, Greece
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9 citations as recorded by crossref.
- Distinct secondary ice production processes observed in radar Doppler spectra: insights from a case study A. Billault-Roux et al. 10.5194/acp-23-10207-2023
- Aerosol and dynamical contributions to cloud droplet formation in Arctic low-level clouds G. Motos et al. 10.5194/acp-23-13941-2023
- Reducing Aerosol Forcing Uncertainty by Combining Models With Satellite and Within‐The‐Atmosphere Observations: A Three‐Way Street R. Kahn et al. 10.1029/2022RG000796
- Derived Profiles of CCN and INP Number Concentrations in the Taklimakan Desert via Combined Polarization Lidar, Sun-Photometer, and Radiosonde Observations S. Zhang et al. 10.3390/rs15051216
- Unveiling atmospheric transport and mixing mechanisms of ice-nucleating particles over the Alps J. Wieder et al. 10.5194/acp-22-3111-2022
- Towards reliable retrievals of cloud droplet number for non-precipitating planetary boundary layer clouds and their susceptibility to aerosol R. Foskinis et al. 10.3389/frsen.2022.958207
- Retrieving ice-nucleating particle concentration and ice multiplication factors using active remote sensing validated by in situ observations J. Wieder et al. 10.5194/acp-22-9767-2022
- Aerosol–stratocumulus interactions: towards a better process understanding using closures between observations and large eddy simulations S. Calderón et al. 10.5194/acp-22-12417-2022
- MASCDB, a database of images, descriptors and microphysical properties of individual snowflakes in free fall J. Grazioli et al. 10.1038/s41597-022-01269-7
3 citations as recorded by crossref.
- Microphysical investigation of the seeder and feeder region of an Alpine mixed-phase cloud F. Ramelli et al. 10.5194/acp-21-6681-2021
- Continuous secondary-ice production initiated by updrafts through the melting layer in mountainous regions A. Lauber et al. 10.5194/acp-21-3855-2021
- Influence of low-level blocking and turbulence on the microphysics of a mixed-phase cloud in an inner-Alpine valley F. Ramelli et al. 10.5194/acp-21-5151-2021
Latest update: 24 Apr 2024
Short summary
Aerosol and cloud observations coupled with a droplet activation parameterization was used to investigate the aerosol–cloud droplet link in alpine mixed-phase clouds. Predicted droplet number, Nd, agrees with observations and never exceeds a characteristic “limiting droplet number”, Ndlim, which depends solely on σw. Nd becomes velocity limited when it is within 50 % of Ndlim. Identifying when dynamical changes control Nd variability is central for understanding aerosol–cloud interactions.
Aerosol and cloud observations coupled with a droplet activation parameterization was used to...
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