Effects of varying aerosol regimes on low-level Arctic stratus

Details Effects of varying aerosol regimes on low-level Arctic stratus Effects of varying aerosol regimes on low-level Arctic stratus

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3117105g&link_type=abstract

Geophysical Research Letters, Volume 31, Issue 17, CiteID L17105

Physics

24

Atmospheric Composition And Structure: Aerosols And Particles (0345, 4801), Atmospheric Composition And Structure: Cloud Physics And Chemistry, Atmospheric Composition And Structure: Planetary Atmospheres (5405, 5407, 5409, 5704, 5705, 5707), Atmospheric Composition And Structure: Troposphere-Constituent Transport And Chemistry, Meteorology And Atmospheric Dynamics: Polar Meteorology

Scientific paper

The effects on low-level cloud microstructures of varying aerosol regimes in the Arctic are examined using ground-based measurements obtained near Barrow, Alaska. Episodic `arctic haze' events produced high cloud droplet concentrations, and small cloud droplet effective radii. By contrast, the fresh nucleation of aerosols within the Arctic produced particles high in number concentration but generally too small to be efficient cloud condensation nuclei. Comparisons with similar analyses done at lower latitudes suggest that the `indirect effect' of haze aerosol on low-cloud effective radii is particularly high in the Arctic.

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