Open to the public, Kerri Pratth is presenting some of her research from her dissertation on Monday, 6/29/09 at 1:00pm in the Natural Sciences Building room 1205. Atmospheric aerosols strongly influence regional and global climate by scattering and absorbing radiation and acting as cloud condensation and ice nuclei. The aircraft aerosol time-of-flight mass spectrometer (A-ATOFMS) was developed for real-time aircraft-based studies of size-resolved chemistry of individual particles. Using the A-ATOFMS, particle volatility was examined through ground-based measurements during the Study of Organic Aerosols in Riverside, CA (SOAR), and vertical mixing state profiles and cloud residues were examined through flight-based measurements during the Ice in Clouds Experiment – Layer Clouds (ICE-L). This talk will focus new insights gained from ICE-L results. Particular emphasis will be placed on the mixing states of soot and organic carbon-containing particles with altitude. In addition, the role of long-range transported dust and biological particles as ice nuclei will be discussed, as well as the measurement of playa salts as cloud condensation nuclei. Congratulations to Kerri on her PhD and we wish her good luck at Pacific Northwest National Laboratory for her post-doc!
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Prather Research GroupUC San Diego |
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