Session 8 Aerosol-Cloud Interactions in Shallow Clouds -Part I

Thursday, 26 January 2017: 1:30 PM-3:00 PM
4C-4 (Washington State Convention Center )
Host: Ninth Symposium on Aerosol–Cloud–Climate Interactions
Cochairs:
Robert Wood, Univ. of Washington, Atmospheric Sciences, Seattle, WA and Alison D. Nugent, NCAR, Boulder, CO

Shallow clouds, like cumulus and stratocumulus, cover a significant portion of Earth's surface, especially over the ocean. Many shallow cloud systems are sensitive to changes in aerosol properties, which modulate cloud microphysical properties and can influence precipitation formation and cloud scale dynamics. In addition, absorbing aerosols can modulate the thermodynamic environment experienced by clouds. Ultimately, these controls may alter low cloud radiative properties and climate. Aerosol particles, in turn, are impacted by shallow cloud processes. Together, these interactions result in a coupling of the aerosol-cloud system whose strength is highly variable and poorly understood. Correctly representing this coupling has proven challenging to represent in large scale models. In this session, we invite presentations on all topics related to aerosol-cloud coupling in shallow clouds, including those addressing basic physical understanding, the quantification of aerosol indirect effects, cloud effects on aerosols, and the coupling between aerosols and boundary layer turbulence, cloud dynamics, and precipitation.

Papers:
2:15 PM
8.4
Laboratory Measurements of the Scavenging of Interstitial Aerosol in Polluted Clouds
Will Cantrell, Michigan Technological University, Houghton, MI; and K. K. Chandrakar, K. Chang, D. Ciochetto, S. Karki, D. Niedermeier, R. A. Shaw, and F. Yang
- Indicates paper has been withdrawn from meeting
- Indicates an Award Winner