Insights into the journeys of aerosol particles over the Arctic
Arctic boundary layer clouds play an important role in the surface energy balance. Given the often-pristine conditions, the optical and microphysical properties of these clouds are sensitive to the number concentration of aerosol particles that can act as cloud condensation nuclei (CCN). This study uses a set of large eddy simulations to show that entrainment of aerosol particles from the free troposphere, in part mediated by the clouds themselves, is an important source of CCN to summertime Arctic boundary layer clouds. If true, these clouds are more susceptible to distant sources of aerosol via long-range transport and subsidence than some previous studies have suggested.
- Article Category
- Research Letters
- Atmospheric Science
The free troposphere as a potential source of arctic boundary layer aerosol particles
- First Published:
- | DOI:
Eos.org: Earth & Space Science News
Download the App
New Android App Available!
iOS App for iPad or iPhone
AGU Career Center
Featured Special Collection
Early results from Juno's mission at Jupiter including approach to Jupiter and the first perijove pass (PJ1). Juno's scientific objectives include the study of Jupiter's interior, atmosphere and polar magnetosphere with the goal of understanding Jupiter's origin, formation and evolution. This collection of papers provides early results from Juno's measurements of the gravity and magnetic fields, deep atmospheric microwave sounding, infrared, visible and ultraviolet images/spectra and an array of fields and particles instruments as well as context for the early results with respect to current theory and models of Jupiter's formation and evolution. Topics include both Juno - Jupiter related theoretical models and data analysis as well as collaborative observations made from Earth based assets.