Browsing Chang, Rachel Y.W. by Author "Chang, R. Y-W"

Now showing items 1-4 of 4

  • Cloud condensation nuclei closure study on summer arctic aerosol 

    Martin, M., R. Y-W Chang, B. Sierau, S. Sjogren, et al. 2011. "Cloud condensation nuclei closure study on summer arctic aerosol." Atmospheric Chemistry and Physics 11(22): 11335-11350.
    We present an aerosol - cloud condensation nuclei (CCN) closure study on summer high Arctic aerosol based on measurements that were carried out in 2008 during the Arctic Summer Cloud Ocean Study (ASCOS) on board the ...

  • The hygroscopicity parameter (kappa) of ambient organic aerosol at a field site subject to biogenic and anthropogenic influences: relationship to degree of aerosol oxidation 

    Chang, R. Y-W, J. G. Slowik, N. C. Shantz, A. Vlasenko, et al. 2010. "The hygroscopicity parameter (kappa) of ambient organic aerosol at a field site subject to biogenic and anthropogenic influences: relationship to degree of aerosol oxidation." Atmospheric Chemistry and Physics 10(11): 5047-5064.
    Cloud condensation nuclei (CCN) concentrations were measured at Egbert, a rural site in Ontario, Canada during the spring of 2007. The CCN concentrations were compared to values predicted from the aerosol chemical ...

  • Particle formation and growth at five rural and urban sites 

    Jeong, C-H, G. J. Evans, M. L. McGuire, R. Y-W Chang, et al. 2010. "Particle formation and growth at five rural and urban sites." Atmospheric Chemistry and Physics 10(16): 7979-7995.
    Ultrafine particle (UFP) number and size distributions were simultaneously measured at five urban and rural sites during the summer of 2007 in Ontario, Canada as part of the Border Air Quality and Meteorology Study ...

  • Photochemical processing of organic aerosol at nearby continental sites: contrast between urban plumes and regional aerosol 

    Slowik, J. G., J. Brook, R. Y-W Chang, G. J. Evans, et al. 2011. "Photochemical processing of organic aerosol at nearby continental sites: contrast between urban plumes and regional aerosol." Atmospheric Chemistry and Physics 11(6): 2991-3006.
    As part of the BAQS-Met 2007 field campaign, Aerodyne time-of-flight aerosol mass spectrometers (ToF-AMS) were deployed at two sites in southwestern Ontario from 17 June to 11 July 2007. One instrument was located at ...