Search
Now showing items 1-2 of 2
Ultraclean layers and optically thin clouds in the stratocumulus to cumulus transition: depletion of cloud droplets and cloud condensation nuclei through collision-coalescence
With aircraft observations, ultraclean layers (UCLs) in the marine boundary layer (MBL) are shown to be common features in the stratocumulus to cumulus (Sc-Cu) transition region. The ultraclean layers are defined as layers of either cloud or clear air in which the concen- tration of particles larger than 0.1 μm is below 10 ...
Aerosol-cloud-precipitation interaction in ultraclean layers and optically thin veil cloud system in the stratocumulus to cumulus transition: remote sensing measurements and cloud resolving model results
Recent observational studies have shown that ultraclean layers (UCLs) and optically thin veil clouds associated with precipitating deep cumulus are common features of the marine boundary layer in the stratocumulus to cumulus transition. The very low number concentration of cloud droplet and cloud condensation nuclei in UCLs, ...