Articles | Volume 20, issue 23
https://doi.org/10.5194/acp-20-15297-2020
© Author(s) 2020. 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-20-15297-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
09 Dec 2020
Research article |
| 09 Dec 2020
| 09 Dec 2020
Sensitivity of warm clouds to large particles in measured marine aerosol size distributions – a theoretical study
Department of Earth and Planetary Sciences, Weizmann Institute of Science, Rehovot, Israel
Department of Earth and Planetary Sciences, Weizmann Institute of Science, Rehovot, Israel
Orit Altaratz
Department of Earth and Planetary Sciences, Weizmann Institute of Science, Rehovot, Israel
Guy Dagan
Atmospheric, Oceanic and Planetary Physics, Department of Physics, University of Oxford, Oxford, UK
Zev Levin
School of Earth Sciences, Department of Geophysics, Tel Aviv University, Ramat Aviv, Israel
Assaf Vardi
Department of Plant and Environmental Sciences, Weizmann Institute of Science, Rehovot, Israel
Department of Earth and Planetary Sciences, Weizmann Institute of Science, Rehovot, Israel
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Short summary
We used in situ aerosol measurements over the Atlantic, Caribbean, and Pacific to initialize a cloud model and study the impact of aerosol concentration and sizes on warm clouds. We show that high aerosol concentration increases cloud mass and reduces surface rain when giant particles (diameter > 9 µm) are present. The large aerosols changed the timing and magnitude of internal cloud processes and resulted in an enhanced evaporation below cloud base and dramatically reduced surface rain.
We used in situ aerosol measurements over the Atlantic, Caribbean, and Pacific to initialize a...
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