Correlations of small cumuli droplet and drizzle drop concentrations with cloud condensation nuclei concentrations
نویسندگان
چکیده
منابع مشابه
Droplet Size Distributions as a function of rainy system type and Cloud Condensation Nuclei concentrations
Article history: Received 3 October 2013 Received in revised form 20 February 2014 Accepted 27 February 2014 Available online 10 March 2014 This work aims to study typical Droplet Size Distributions (DSDs) for different types of precipitation systems and Cloud Condensation Nuclei concentrations over the Vale do Paraíba region in southeastern Brazil. Numerous instruments were deployed during the...
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Atmospheric aerosol particles influence global climate as well as impair air quality through their effects on atmospheric visibility and human health. Ultrafine (<100 nm) particles often dominate aerosol numbers, and nucleation of atmospheric vapors is an important source of these particles. To have climatic relevance, however, the freshly nucleated particles need to grow in size. We combine ob...
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Quantifying the aerosol/cloud-mediated radiative effect at a global scale requires simultaneous satellite retrievals of cloud condensation nuclei (CCN) concentrations and cloud base updraft velocities (Wb). Hitherto, the inability to do so has been a major cause of high uncertainty regarding anthropogenic aerosol/cloud-mediated radiative forcing. This can be addressed by the emerging capability...
متن کاملThe Impact of Giant Cloud Condensation Nuclei on Drizzle Formation in Stratocumulus: Implications for Cloud Radiative Properties
The impact of giant and ultragiant cloud condensation nuclei (.5-mm radius) on drizzle formation in stratocumuli is investigated within a number of modeling frameworks. These include a simple box model of collection, a trajectory ensemble model (comprising an ensemble of Lagrangian parcel models), a 2D eddy-resolving model, and a 3D large-eddy simulation model. Observed concentrations of giant ...
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While a large number of field investigations on aerosol CCN activity and cloud microphysics have been performed, very little information on the activation characteristics of the smallest aerosol particles (those close to or below 0.1 μm in diameter) is available. Here we approach the problem in a slightly different way to traditional methods by measuring simultaneously the cloud interstitial pa...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research
سال: 2009
ISSN: 0148-0227
DOI: 10.1029/2008jd010581