EGU26-3155, updated on 13 Mar 2026
https://doi.org/10.5194/egusphere-egu26-3155
EGU General Assembly 2026
© Author(s) 2026. This work is distributed under the Creative Commons Attribution 4.0 License.
Poster |
Friday, 08 May, 08:30–10:15 (CEST), Display time Friday, 08 May, 08:30–12:30 Hall X5, X5.41
The optimal size distribution of seeding aerosol for marine cloud brightening: insights from emulating a Lagrangian cloud model
1,2,3,1- 1Delft University of Technology, Geoscience & Remote Sensing, Netherlands (z.c.rowland@tudelft.nl)
- 2Institute of Meteorology, Free University of Berlin, Berlin, Germany
- 3Max Planck Institute for Meteorology, Hamburg, Germany
To effectively implement marine cloud brightening (MCB) we need to know both the most suitable conditions under which to spray and the sprayed sea salt size distributions which produce the most effective brightening. This requires understanding in detail the effect of each sprayed distribution on the cloud microphysics across a wide range of meteorological conditions.
To address this, we developed a fast approximation of a Lagrangian cloud model capable of emulating MCB-relevant prognostic variables for a wide range of spraying scenarios and salt size distributions. We run this model on a large dataset of conditions sourced from ERA5 and CAMS reanalysis and filtered for target stratocumulus clouds. Our analysis yields insights for estimation of the potential brightening efficiency of stratocumulus for different sprayed aerosol distributions and spray rates, depending on background meteorological conditions.
How to cite: Rowland, Z. C., Hoffmann, F., Glassmeier, F., Steinke, I., and Russchenberg, H.: The optimal size distribution of seeding aerosol for marine cloud brightening: insights from emulating a Lagrangian cloud model, EGU General Assembly 2026, Vienna, Austria, 3–8 May 2026, EGU26-3155, https://doi.org/10.5194/egusphere-egu26-3155, 2026.
