J2B Aerosol-Cloud Interaction in Deep Convection I

Monday, 29 January 2024: 10:45 AM-12:00 PM
329 (The Baltimore Convention Center)
Hosts: (Joint between the 16th Symposium on Aerosol Cloud Climate Interactions; and the First Symposium on Cloud Physics )
Cochairs:
Dié Wang, Brookhaven National Laboratory, Upton, NY; Michael P. Jensen, Brookhaven National Laboratory, Brookhaven, NY and Zachary J. Lebo

Convective clouds play an essential role in regulating the global energy and water cycles, with deep convective clouds (DCC) being among the most important components of the Earth's atmospheric system. Despite their significance, the representation of DCCs and their feedback on the global circulation and cloudiness remains a major source of uncertainty in Earth system models. One of the biggest uncertainties is the impact of aerosol on DCC properties, which continues to be a topic of debate within the scientific community.

The goal of this session is to advance our understanding of the three-way aerosol-DCC-environment interactions and their impact on climate predictions. We welcome theoretical, observational, and modeling studies on various topics related to DCC-aerosol-environment interactions, including:

1. Aerosol impacts on DCC macrophysics, microphysics, kinematics, thermodynamics, radiative properties, and precipitation processes

2. Influence of environmental conditions, such as wind shear, humidity, and instability, on DCC processes and aerosol-DCC interactions

3. Climatic influence of aerosol-DCC-environment interactions and their impact on future climate predictions

4. DCC transport of aerosol particles and subsequent influence on the aerosol and cloud condensation nuclei size distributions

5. Novel measurements, including laboratory, in situ, and remote sensing techniques, as well as advanced machine learning methods and modeling techniques

Papers:
10:45 AM
J2B.1
Entrainment Makes Pollution More Likely to Weaken Deep Convective Updrafts Than Invigorate Them
John M Peters, Penn State Univ., State College, PA; and Z. J. Lebo, D. R. Chavas, and C. Y. Su

11:00 AM
J2B.2
The Impact of Environmental and Aerosol Conditions on Cloud Microphysical and Kinematic Properties in Isolated Convective Cells: Results from ESCAPE
Greg M. McFarquhar, CIWRO/SOM, Norman, OK; and S. U. Patil, M. Wolde, C. Nguyen, K. Ranjbar, L. Nichman, N. Bliankinshtein, G. Roberts, P. Kollias, and Z. J. Mages

11:15 AM
J2B.3
A CloudSat and CALIPSO-based Evaluation of the Effects of Thermodynamic Instability and Aerosol Loading on Amazon Basin Deep Convection and Lightning
Dale J. Allen, Univ. of Maryland, College Park, College Park, MD; and K. E. Pickering, M. A. Avery, Z. Li, C. A. Morales, S. Shan, and P. Artaxo

11:30 AM
J2B.4
11:45 AM
J2B.5
Machine Learning Based Investigation of the Variables Affecting Summertime Lightning over Southeastern South America
Siyu Shan, Univ. of Maryland, Greenbelt, MD; and D. J. Allen, Z. Li, and K. E. Pickering

- Indicates paper has been withdrawn from meeting
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