Measurements of size-resolved hygroscopicity in the California coastal zone
MetadataShow full item record
Aircraft – based measurements of aerosol hygroscopicity, both in the form of sizeresolved, diameter growth factors and in the dependence of particle light scattering on relative humidity, are presented for the marine boundary layer of the southern California coastal zone. The chemical composition of the aerosol is collated with the hygroscopicity data, both to examine the nature of aerosol aging and as input for receptor type modeling. The data suggest an increase in aerosol hygroscopicity with altitude, possibly associated with oxidation of organic films. The receptor modeling suggests three distinct aerosol types/sources for this venue: marine, biomass burning and pollution. Model output is used in regression analyses to derive a prognostic mixing rule for the hygroscopicity of aerosol with these three sources.
Atmospheric Chemistry and Physics Discussions 8, 310531-10560
RightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
Showing items related by title, author, creator and subject.
Gao, Song; Hegg, Dean A.; Jonsson, Haflidi (2003);During the ACE-Asia field campaign, 41 aerosol filter samples were obtained by airborne sampling over the ocean to the north, south and west of Japan, generally under conditions of outflow from the Asian continent. These ...
Hersey, Scott P.; Craven, Jill S.; Metcalf, Andrew R.; Lin, Jack; Lathem, Terry; Suski, Kaitlyn J.; Cahill, John F.; Duong, Hanh T.; Sorooshian, Armin; Jonsson, Haflidi H.; Shiraiwa, Manabu; Zuend, Andreas; Nenes, Athanasios; Prather, Kimberly A.; Flagan, Richard C.; Seinfeld, John H. (2013);Aircraft-based measurements of aerosol composition, either bulk or single-particle, and both subsaturated and supersaturated hygroscopicity were made in the Los Angeles Basin and its outflows during May 2010 during the ...
Speciation of Organic Aerosols in the Tropical Mid-Pacific and their Relationship to Light Scattering Crahan, Kathleen K.; Hegg, Dean A.; Covert, David S.; Reid, Jeffrey S.; Kehlif, Djmal; Brooks, Barbara J.; Jonsson, Haflidi (2004);Although the importance of the aerosol contribution to the global radiative budget has been recognized, the forcings of aerosols in general, and specifically the role of the organic component in these forcings, still ...