HR: 17:10h
AN: A34C-05    [Abstracts]
TI: Measurements of Aerosol Hygroscopic Growth From Eight Different Regions and Aerosol Types
AU: * Jefferson, A
EM: anne.jefferson@noaa.gov
AF: CIRES, University of Colorado, 216 UCB, Boulder, CO 80309-0216, United States
AU: Ogren, J
EM: john.a.ogren@noaa.gov
AF: ESRL, National Oceanic and Atmospheric Administration, 325 Broadway, Boulder, CO 80305, United States
AB: The change in the aerosol scattering coefficient with relative humidity has been measured at eight regions across the Earth over a time period of a few months to eight years. The measurement sites include the Arctic, Northeastern North America, Central US, Northwestern US, the Korean Peninsula, Indian Ocean, African Sahel and Central Europe. The aerosol types in these studies include mixtures of dust, smoke, pollution and marine aerosol. The covariance in the aerosol hygroscopic growth factor with other aerosol properties and source regions will be discussed as well as implications for direct and indirect radiative forcing.
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 0320 Cloud physics and chemistry
DE: 0360 Radiation: transmission and scattering
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting