Further evidence for CCN aerosol concentrations determining the height of warm rain and ice initiation in convective clouds over the Amazon basin

• Published in: Atmospheric chemistry and physics Vol. 17; no. 23; pp. 14433 - 14456
• Main Authors: Braga, Ramon Campos, Rosenfeld, Daniel, Weigel, Ralf, Jurkat, Tina, Andreae, Meinrat O, Wendisch, Manfred, Pöschl, Ulrich, Voigt, Christiane, Mahnke, Christoph, Borrmann, Stephan, Albrecht, Rachel I, Molleker, Sergej, Vila, Daniel A, Machado, Luiz A. T, Grulich, Lucas
• Format: Journal Article
• Language: English
• Published: Katlenburg-Lindau Copernicus GmbH 05.12.2017; Copernicus Publications
• Subjects: Adiabatic; Adiabatic conditions; Adiabatic flow; Aerosol concentrations; Aerosol particles; Aerosols; Air pollution; Air pollution measurements; Analysis; Atmospheric precipitations; Biomass burning; Burning; Cloud droplet concentration; Cloud droplet size; Cloud droplets; Clouds; Clouds (Meteorology); Coalescence; Coalescing; Convective clouds; Cumulus clouds; Deforestation; Direct reduction; Droplets; Entrainment; Evolution; Height; Hydrometeors; Ice; Ice formation; Ice particles; Instruments; Instruments (Equipment); Measuring instruments; Outdoor air quality; Pollution control; Precipitation; Precipitation (Meteorology); Profiles; Rain; Raindrop formation; Raindrops; Rainfall; River basins; Seasons; Temperature; Vertical profiles; Water; Water pollution; Amazon Basin; Brazil

We have investigated how aerosols affect the height above cloud base of rain and ice hydrometeor initiation and the subsequent vertical evolution of cloud droplet size and number concentrations in growing convective cumulus. For this purpose we used in situ data of hydrometeor size distributions mea...