Articles | Volume 19, issue 3
Research article
04 Feb 2019
Research article |  | 04 Feb 2019

Understanding aerosol–cloud interactions through modeling the development of orographic cumulus congestus during IPHEx

Yajuan Duan, Markus D. Petters, and Ana P. Barros

Data sets

GPM Ground Validation Integrated Precipitation and Hydrology Experiment (IPHEx) Field Campaign Data Collection W. Petersen and A. Barros

Short summary
A new cloud parcel model that simulates entrainment, condensational growth, and collision–coalescence processes is presented and evaluated against airborne observations in complex terrain during IPHEx. Analysis of model simulations reveals that nonlinear interactions among turbulent dispersion, activation, and droplet growth processes modulate spectral width and explain the emergence of bimodal cloud drop spectra in aircraft measurements from different cloud regions and at different heights.
Final-revised paper