Session J3A Aerosol-Cloud Interaction in Deep Convection I

Monday, 13 January 2025: 1:45 PM-3:00 PM
215 (New Orleans Ernest N. Morial Convention Center)
Hosts: (Joint between the 17th Symposium on Aerosol Cloud Climate Interactions; and the Second Symposium on Cloud Physics )
Cochairs:
Dié Wang, Brookhaven National Laboratory, Upton, NY and Michael P. Jensen, Brookhaven National Laboratory, Brookhaven, NY

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:
1:45 PM
J3A.1
The Quasi-Steady State Supersaturation: Do High Derived Values from ESCAPE Represent Real High Supersaturations and the Potential for Condensational Invigoration? (Invited)
Saurabh U Patil, Cooperative Institute of Severe and High-Impact Weather Research and Operations (CIWRO), Norman, OK; University of Oklahoma, Norman, OK; and G. M. McFarquhar, Y. Huang, M. Wolde, G. Roberts, L. Nichman, P. Kollias, D. Rosenfeld, C. Nguyen, K. Ranjbar, N. Bliankinshtein, K. Bala, and Z. J. Mages

2:00 PM
J3A.2
Large Indicated Aerosol Convective Invigoration Implies a Respective Redistribution of Tropical Rainfall
Daniel Rosenfeld, The Hebrew Univ. of Jerusalem, Jerusalem, JM, Israel; and J. Yin, F. Mao, Z. Pan, L. Zang, and Y. Zhu

2:15 PM
J3A.3
Observations of Ambient Aerosol and Liquid Cloud Formation in a New Mexico Summer Deep-Convection System
Hugh Coe, University of Manchester, Manchester, Greater Manchester, United Kingdom; National Centre for Atmospheric Sciences, Manchester, LAN, United kingdom; and H. Wu, N. Marsden, P. J. Connolly, M. Flynn, P. Williams, K. Hu, G. Nott, D. L. Finney, N. Thamban, K. N. Bower, A. M. Blyth, T. W. Choularton, and M. W. Gallagher

2:45 PM
J3A.5
Sensitivity of isolated deep convection to TRACER thermodynamic and aerosol environments in idealized simulations
Anita D. Rapp, Texas A&M University, College Station, TX; and M. Sharma, C. J. Nowotarski, S. D. Brooks, S. Thompson, and B. Chen

- Indicates paper has been withdrawn from meeting
- Indicates an Award Winner