A109 - Processes of (Sub) Cloud Scales: Modeling, Observations and Parameterizations

https://agu.confex.com/agu/fm23/prelim.cgi/Session/188746

Session Description: Clouds continue to challenge our understanding and are major sources of uncertainty in numerical weather prediction and climate projection. Key to addressing such outstanding challenges associated with clouds are to understand the processes that occur at space-time scales of individual clouds or smaller, including entrainment/detrainment, turbulent mixing, turbulence, cloud microphysics, radiation, aerosol activation/deactivation, and boundary layer processes. The temporal and spatial scales of these processes are essentially smaller compared to the time and grid scales in numerical models. These sub-grid cloud processes pose particular challenges to numerical simulations, observations, as well as parameterization development. Representations of these sub-grid cloud processes will likely become more important as weather and climate models increase their resolutions. This session focuses on process-level modeling, observations (both laboratory and field), and parameterizations of such (sub) cloud processes. Also invited are studies on unified treatment of different processes, process coupling, and integration from observations, theories to models.

Sincerely,

Chunsong Lu (Nanjing University of Information Science and Technology) Yangang Liu (Brookhaven National Laboratory) Lulin Xue (National Center for Atmospheric Research) Alexei Korolev (Environment Canada Toronto)