• University of California-San Diego
  • 9500 Gilman Drive
  • La Jolla CA 92093-0532 USA
  • Tel: 1-858-534-0000
  • Fax: 1-858-534-0000

    What Aerosols Are -- an overview of aerosols and their role in the atmosphere

    Aerosols in Motion -- animation and associated computer code for simulating microphysical processes


    The California State Summer School for Mathematics and Science is a 4-week residential summer progam for high school students with interest in math and science.
    COSMOS Cluster 3 Pages: Cluster 3 2013 and Cluster 3 2012


    Undergraduate Research at SIO: Seth Chunn

    : In the Fall of 2013, Seth worked with the Russell group to analyze the chemical composition of aerosol at two different size cutoffs. A summary of his project along with his findings can be found here:

    Undergraduate Research at SIO: Patrick Ferree

    : In the Spring of 2012 Patrick atomized motor oil onto Teflon filters and scanned them to obtain FTIR spectra. A summary of his project along with his findings can be found here:

    Undergraduate Research at SIO with the SURF program: Grace Weissner

    : During the summer of 2012, Grace participated in the SURF program at SIO. She worked with graduate student Amanda Frossard to measure the chlorophyll-a concentrations in seawater collected during EPEACE in July 2011. Grace compared the functional group composition of the ambient aerosol particles collected during EPEACE to the seawater chlorophyll concentrations.

    Undergraduate Research at SIO through ESYS: Brian White

    : Brian worked in the Russell group from fall 2011 to spring 2012 as a part of his ESYS research at UCSD. Brian worked with graduate student Amanda Frossard on determining the composition of organic compounds in seawater. Brian collected seawater from the Scripps Pier and atomized and bubbled it on to filters after storing it under different conditions. One goal of his project was to determine if different storage methods affected the functional group composition of the organics in the seawater. He also compared the atomizing and bubbling techniques.

    Undergraduate Research at CalNex: Becca Rolph

    : At the Caltech site in Pasadena, Becca helped set up the air pump used to collect the samples, and also prepared the filters that were used in the sample collection. Once the air pump was set up, Jason Surratt changed the filters at Caltech and recorded how long each filter was sampling. The filters were then frozen and sent back to SIO overnight, where Becca analyzed them with FTIR spectroscopy to obtain the sample spectra. The samples were frozen and the spectra were obtained in a timely manner to prevent loss of organonitrates, which may degrade over time. Now that the spectra have been obtained, we are using an algorithm to peakfit and integrate the spectra to determine the functional groups present in the samples.

    Undergraduate Research at CalMex: Anita Johnson

    : In preparing to go to the Tijuana site, Anita scanned Teflon filters to obtain their background FTIR spectra. On site and back at Scripps, she analyzed each filter's time series and re-scanned the samples to obtain mass, concentration, and mole data for alcohols, alkanes, carbonyls, amines, and acids based on the functional group abundance in each spectrum. These will be compared with data from the ACSM to give the most accurate picture of organic components in the sampled aerosols.

    Undergraduate and Graduate Research at Whistler, BC:Rachel Schwartz

    : Organic aerosol measurements have been made at Whistler, Britsh Colubmia in spring of 2008 and spring to summer of 2009. From the 2008 measurements we have identified biogenic influences on the aerosol and have provided a biogenic functional group characterization. Preliminary results from the 2009 measurements show the influence of biogenic, long range transport, and biomass burning sources on the measured aerosol. We propose to collect bulk and single particle measurements at mid mountain and peak sites to assess the impact of these particles on cloud formation processes in spring 2010.


    Graduate Research at VOCALS-REx 2008: Lelia Hawkins

    : In October 2008, graduate student Lelia Hawkins of the Russell Group went on board the NOAA Research Vessel Ronald Brown measuring atmospheric aerosol particles like dust, soot, organics, sulfate, nitrate and sea salt. Her experience was an excellent example of the first-hand work done in the field that contribute to our understanding of atmospheric aerosols. Her introduction, as well as 3 postcards are available here: