Record Details

Measurements of Saharan Dust in Convective Clouds over the Tropical Eastern Atlantic Ocean

ScholarsArchive at Oregon State University

Field Value
Title Measurements of Saharan Dust in Convective Clouds over the Tropical Eastern Atlantic Ocean
Names Twohy, Cynthia H. (creator)
Date Issued 2015-01 (iso8601)
Note This is the publisher’s final pdf. The published article is copyrighted by the American Meteorological Society and can be found at: http://journals.ametsoc.org/loi/atsc.
Abstract Mineral dust particles have been shown to act as cloud condensation nuclei, and they are known to interact
with developing tropical storms over the Atlantic downwind of the Sahara. Once present within liquid
droplets, they have the potential to act as freezing ice nuclei and further affect the microphysics, dynamics,
and evolution of tropical storms. However, few measurements of mineral dust particles in tropical convective
clouds exist. This study indicates that about one-third of droplets sampled in small convective clouds in the
tropical eastern Atlantic contained dust particles, and dust was the dominant residual particle type sampled in
ice crystals from anvil outflow. However, estimated number and mass concentrations of dust in anvil ice were
small compared to the amount of dust available within the Saharan air layer itself.
Genre Article
Topic Deep convection
Identifier Twohy, C. H. (2015). Measurements of Saharan Dust in Convective Clouds over the Tropical Eastern Atlantic Ocean. Journal of the Atmospheric Sciences, 72(1), 75-81. doi:10.1175/JAS-D-14-0133.1

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