Articles | Volume 21, issue 18
Atmos. Chem. Phys., 21, 14039–14058, 2021
Atmos. Chem. Phys., 21, 14039–14058, 2021
Research article
22 Sep 2021
Research article | 22 Sep 2021

Environmental sensitivities of shallow-cumulus dilution – Part 2: Vertical wind profile

Sonja Drueke et al.

Related authors

Environmental sensitivities of shallow-cumulus dilution – Part 1: Selected thermodynamic conditions
Sonja Drueke, Daniel J. Kirshbaum, and Pavlos Kollias
Atmos. Chem. Phys., 20, 13217–13239,,, 2020
Short summary

Related subject area

Subject: Clouds and Precipitation | Research Activity: Atmospheric Modelling | Altitude Range: Troposphere | Science Focus: Physics (physical properties and processes)
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
Atmos. Chem. Phys., 22, 8973–8988,,, 2022
Short summary
Contrail formation within cirrus: ICON-LEM simulations of the impact of cirrus cloud properties on contrail formation
Pooja Verma and Ulrike Burkhardt
Atmos. Chem. Phys., 22, 8819–8842,,, 2022
Short summary
Impact of Holuhraun volcano aerosols on clouds in cloud-system-resolving simulations
Mahnoosh Haghighatnasab, Jan Kretzschmar, Karoline Block, and Johannes Quaas
Atmos. Chem. Phys., 22, 8457–8472,,, 2022
Short summary
Warm and moist air intrusions into the winter Arctic: a Lagrangian view on the near-surface energy budgets
Cheng You, Michael Tjernström, and Abhay Devasthale
Atmos. Chem. Phys., 22, 8037–8057,,, 2022
Short summary
Convective updrafts near sea-breeze fronts
Shizuo Fu, Richard Rotunno, and Huiwen Xue
Atmos. Chem. Phys., 22, 7727–7738,,, 2022
Short summary

Cited articles

Asai, T.: Cumulus Convection in the Atmosphere with Vertical Wind Shear: Numerical Experiment, J. Meteorol. Soc. Jpn., 42, 245–259,, 1964. a, b
Bera, S. and Prabha, T. V.: Parameterization of Entrainment Rate and Mass Flux in Continental Cumulus Clouds: Inference From Large Eddy Simulation, J. Geophys. Res.-Atmos., 124, 13127–13139, 2019. a
Betts, A. K.: Parametric Interpretation of Trade-Wind Cumulus Budget Studies, J. Atmos. Sci., 32, 1934–1945,<1934:PIOTWC>2.0.CO;2, 1975. a, b
Brown, A. R.: Large-Eddy Simulation and Parametrization of the Effects of Shear on Shallow Cumulus Convection, Bound.-Lay. Meteorol., 91, 65–80,, 1999. a, b, c, d, e
Brown, A. R., Cederwall, R. T., Chlond, A., Duynkerke, P. G., Golaz, J.-C., Khairoutdinov, J. M., Lewellen, D. C., Lock, A. P., Macvean, M. K., Moeng, C.-H., Neggers, R. A. J., Siebesma, A. P., and Stevens, B.: Large-eddy simulation of the diurnal cycle of shallow cumulus convection over land, Q. J. Roy. Meteor. Soc., 128, 1075–1094,, 2002. a, b, c
Short summary
This numerical study provides insights into the sensitivity of shallow-cumulus dilution to geostrophic vertical wind profile. The cumulus dilution is strongly sensitive to vertical wind shear in the cloud layer, with shallow cumuli being more diluted in sheared environments. On the other hand, wind shear in the subcloud layer leads to less diluted cumuli. The sensitivities are explained by jointly considering the impacts of vertical velocity and the properties of the entrained air.
Final-revised paper