10th International Aerosol Conference September 2 - September 7, 2018 America's Center Convention Complex St. Louis, Missouri, USA
Abstract View
Efficient Wet Removal of Soluble Species through Deep Convection Simulated in Chemistry-Climate Models
PENGFEI YU, Karl D. Froyd, Owen Toon, Charles Bardeen, Shang Liu, Ru-Shan Gao, Christina Williamson, Agnieszka Kupc, Charles Brock, Joshua P. Schwarz, Michael Mills, Simone Tilmes, Karen Rosenlof, Daniel Murphy, NOAA ESRL and CIRES
Abstract Number: 1699 Working Group: Aerosol Modeling
Abstract Convective transport determines the vertical transport efficiencies of aerosols and other trace gases in the chemistry-climate models. Parameterizations of convective transport in numerical models especially in chemistry-climate models are of large uncertainties. In the study we shows that the default parameterization scheme in NCAR/DOE Community Earth System model shows a large discrepancy of a factor of 10-1000 on aerosol mass budget against the observations. A modified transport scheme considering activation of aerosol above cloud-base and aerosol-cloud interactions in the sub-grid scale provides much improved agreements. We use various measurements on aerosol mass concentration from a number of field campaigns including Atom1, HIPPO1-5, and balloon-borne measurements over Kunming, China to validate and quantify the convective transport efficiency in chemistry-climate models.