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using these new sources or have interest to do so in order
to: 1) exchange ideas and thus advance the field and 2)
inform and educate other scientists, especially young
scientists, of the opportunities, facilities and methods
available in this burgeoning area.
reCenT CAMpAIGnS In The norTh
AMerICAn weST CoAST
Conveners: Roya Bahreini, Jose Jimenez, and Rahul
Zaveri
During May-July 2010, several ground-based airborne
and ship-based field studies, supported by several
funding agencies, were carried out in the west coast
of US and the US-Mexico border. These projects were
designed to characterize sources of gas- and aerosolphase
pollutants in the region, study transport and
evolution of these pollutants, and the effect they have
on the air quality and climate. In this symposium, we
invite results from measurements and modeling efforts
of CalNex, CARES, and Cal-Mex studies, as well as of
other studies conducted in the same geographical area
(e.g. CALWATER, ARCTAS-CARB, SOAR, inter alia) that
address the role of aerosols in air quality and climate and
the interactions between the two.
AeroSolS And preCIpITATIon
Conveners: W. Richard Leaitch, Patrick Chuang, and
Sonia Kreidenweis
The formation of precipitation is controlled by a large
number of atmospheric processes that begin with the
nucleation of cloud droplets or ice crystals. Changes in
aerosol particles affect the probability of precipitation
formation in the liquid phase by altering the sizes of
cloud droplets, but how changes in aerosol particles
affect precipitation initiated from the ice phase is largely
unknown. Accompanying changes in the precursor
aerosol, there can also be changes in the radiative,
evaporative and dynamic properties of clouds, all of
which influence precipitation development. With this
symposium we hope to use new and recent research to
highlight some of the many ways that aerosol particles
can affect precipitation.
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