Armin Sorooshian
Armin Sorooshian
Associate Professor

Research Area
•    Surface and Airborne Measurements of Aerosol Composition, Size, and Water-Uptake Properties
•    Aerosol-Cloud-Precipitation Interactions
•    Ocean-Land-Atmosphere Interactions
•    Cloud Water and Precipitation Chemistry
•    Satellite Data Analysis

Curriculum Vitae (PDF)

Educational Qualifications
•    B.S., Chemical and Environmental Engineering, University of Arizona, 2003
•    M.S., Chemical Engineering, California Institute of Technology, 2005
•    Ph.D., Chemical Engineering, California Institute of Technology, 2008

We study the role of aerosol particles and clouds in the Earth system. The major effects that our research aims to address include air quality, climate, the hydrologic cycle, biogeochemical cycling of nutrients, and public health. Currently, the three major foci of this group’s research include the following:
•    Aerosol properties in the atmosphere: Surface, airborne, and satellite observations are used to study the physical and chemical properties of aerosol particles. A major objective of this research thrust is to understand the sources, transformation mechanisms, and fate of aerosol particles in the atmosphere. Furthermore, we strive to improve understanding of health- and climate-relevant aerosol properties and how they change spatially and temporally.
•    Aerosol-cloud-precipitation-radiation interactions: We use a combination of field measurements, satellite data, and modeling to improve knowledge of how aerosol and meteorological perturbations alter cloud properties, precipitation, and the transmission of solar radiation.
•    Instrument development: New instruments are developed and characterized with the goal of making improved aerosol and cloud measurements at a time resolution appropriate for airborne sampling.


•    Five Star Faculty Award Finalist (1 of 5) awarded by the University of Arizona Honors College (2014-2015)
•    Invitee: 2013 National Academy of Engineering Frontiers of Engineering Education Symposium (Irvine, CA; 2013)
•    Invitee: National Academy of Science’s US-Iran Symposium on Air Pollution in Megacities (Irvine, CA; 2013)
•    Recognition for Reviewing Excellence for Atmospheric Environment (2012-2013)
•    Editors’ Citation for Excellence in Refereeing for Journal of Geophysical Research-Atmospheres (2012)
•    College of Engineering Education Faculty Fellow (2012-2014)

•    Invitee and Co-Chair: National Academy of Engineering’s 2012 U.S. Frontiers of Engineering Symposium (Warren, Michigan; 2012)
•    Invitee: National Academy of Engineering’s 2011 U.S. Frontiers of Engineering Symposium (Mountain View, California; 2011)
•    Office of Naval Research Young Investigator Program Award (2010)
•    ACCESS invitee (Atmospheric Chemistry Colloquium for Emerging Senior Scientists; 2009)
•    American Meteorological Society Public Policy Colloquium Fellow (2008)
•    Outstanding Senior - College of Engineering and Mines (University of Arizona, 2003)

Selected Publications

Sorooshian, A., G. Prabhakar, H. Jonsson, R. K. Woods, R. C. Flagan, and J. H. Seinfeld (2015). On the presence of giant particles downwind of ships in the marine boundary layer, Geophys. Res. Lett., 42, doi:10.1002/2015GL063179.

 Crosbie, E., A. Sorooshian, N. A. Monfared, T. Shingler, and O. Esmaili (2014). A multi-year aerosol characterization for the greater Tehran Area using satellite, surface, and modeling data, Atmosphere, 5, 178-197.

 Wang, Z., A. Sorooshian, G. Prabhakar, M. M. Coggon, and H. H. Jonsson (2014). Impact of emissions from shipping, land, and the ocean on stratocumulus cloud water elemental composition during the 2011 E-PEACE Field Campaign, Atmos. Environ., 89, 570-580,

 Prabhakar, G., A. Sorooshian, E. Toffol, A. F. Arellano, and E. A. Betterton (2014). Spatiotemporal distribution of airborne particulate metals and metalloids in a populated arid region, Atmos. Environ., 92, 339-347, 10.1016/j.atmosenv.2014.04.044.

 Sorooshian, A., Z. Wang, G. Feingold, and T. S. L’Ecuyer (2013). A satellite perspective on cloud water to rain water conversion rates and relationships with environmental conditions, J. Geophys. Res., 118, 6643–6650, doi:10.1002/jgrd.50523.

 Sorooshian, A. Z. Wang, M. M. Coggon, H. H. Jonsson, and B. Ervens (2013). Observations of sharp oxalate reductions in stratocumulus clouds at variable altitudes: organic acid and metal measurements during the 2011 E-PEACE campaign, Environ. Sci. Technol., 47, 7747–7756, doi:10.1021/es4012383.

 Youn, J. –S., Z. Wang, A. Wonaschütz, A. Arellano, E. A. Betterton, and A. Sorooshian (2013). Evidence of aqueous secondary organic aerosol formation from biogenic emissions in the North American Sonoran Desert, Geophys. Res. Lett., 40, doi:10.1002/grl.50644.

 Wonaschütz, A., M. Coggon, A. Sorooshian, R. Modini, A. A. Frossard, L. Ahlm, J. Mülmenstädt, G. C. Roberts, L. M. Russell, S. Dey, F. J. Brechtel, and J. H. Seinfeld (2013). Hygroscopic properties of organic aerosol particles emitted in the marine atmosphere, Atmos. Chem. Phys., 13, 9819–9835, doi:10.5194/acp-13-9819-2013.

 Wonaschuetz, A., A. Sorooshian, B. Ervens, P. Y. Chuang, G. Feingold, S. M. Murphy, J. de Gouw, C. Warneke, H. H. Jonsson (2012). Aerosol and gas re-distribution by shallow cumulus clouds: an investigation using airborne measurements, J. Geophys. Res., 117, D17202, doi:10.1029/2012JD018089.

 Shingler, T., S. Dey, A. Sorooshian, F. J. Brechtel, Z. Wang, A. Metcalf, M. Coggon, J. Mülmenstädt, L. M. Russell, H. H. Jonsson, and J. H. Seinfeld (2012). Characterisation and airborne deployment of a new counterflow virtual impactor inlet, Atmos. Meas. Tech., 5, 1259–1269.


University of Arizona College of Engineering