Open AccessThe cloud albedo‐cloud droplet effective radius relationship for clean and polluted clouds from RACE and FIRE.ACE
Author(s) -
Peng Yiran,
Lohmann Ulrike,
Leaitch Richard,
Banic Catharine,
Couture Mark
Publication year - 2002
Publication title -
journal of geophysical research: atmospheres
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.67
H-Index - 298
eISSN - 2156-2202
pISSN - 0148-0227
DOI - 10.1029/2000jd000281
Subject(s) - drizzle , liquid water content , effective radius , cloud albedo , environmental science , liquid water path , aerosol , atmospheric sciences , cloud computing , albedo (alchemy) , cloud top , meteorology , cloud fraction , radius , sea salt aerosol , cloud cover , physics , astrophysics , precipitation , art , computer security , galaxy , performance art , computer science , sea salt , art history , operating system
Twenty‐eight liquid water cloud cases selected from two field studies (the Canadian Radiation, Aerosol and Cloud Experiment (RACE) and the First ISCCP Regional Experiment‐Arctic Cloud Experiment (FIRE.ACE)) are analyzed with respect to the first and second indirect aerosol effects and the relationship between cloud droplet effective radius and cloud albedo for clean and polluted clouds. For the same liquid water path the polluted clouds have more and smaller cloud droplets and thus a higher cloud albedo and less drizzle size drops. The effective radius is positively correlated with cloud albedo for polluted clouds caused by the absence of drizzle size drops. Conversely effective radius is negatively correlated with cloud albedo for clean clouds.