EGU General Assembly 2021
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

On the imprint of the mesoscale organization of tradewind clouds at cloud base and below

Sandrine Bony, Pierre-Etienne Brilouet, Patrick Chazette, Pierre Coutris, Julien Delanoë, Marie Lothon, Nicolas Rochetin, Alfons Schwarzenboeck, and Bjorn Stevens
Sandrine Bony et al.
  • LMD/IPSL, CNRS, Sorbonne University, Paris, France (

Trade-wind clouds can exhibit different patterns of mesoscale organization. These patterns were observed during the EUREC4A (Elucidating the role of cloud-circulation coupling in climate) field campaign that took place in Jan-Feb 2020 over the western tropical Atlantic near Barbados: while the HALO aircraft was observing clouds from above and was characterizing the large-scale environment with dropsondes, the ATR-42 research aircraft was flying in the lower troposphere, characterizing clouds and turbulence with horizontal radar-lidar measurements and in-situ probes and sensors. By analyzing these data for different cloud patterns, we investigate the extent to which the cloud organization is imprinted in cloud-base properties and subcloud-layer heterogeneities. The implications of our findings for understanding the roots of the mesoscale organization of tradewind clouds will be discussed.

How to cite: Bony, S., Brilouet, P.-E., Chazette, P., Coutris, P., Delanoë, J., Lothon, M., Rochetin, N., Schwarzenboeck, A., and Stevens, B.: On the imprint of the mesoscale organization of tradewind clouds at cloud base and below, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-14901,, 2021.