Measured Spectra of the Hygroscopic Fraction of Atmospheric Aerosol Particles

Author

Darryl J. Alofs, Missouri University of Science and TechnologyFollow
Donald E. Hagen, Missouri University of Science and TechnologyFollow
Max B. Trueblood, Missouri University of Science and TechnologyFollow

Abstract

The Relation between Dry Diameter (Xo) and Critical Supersaturation (Sc) for Atmospheric Submicron Aerosol Particles is Investigated. the Particles Are Passed through an Electrostatic Aerosol Size Classifier, and Then through an Isothermal Haze Chamber. Results Are Reported in Terms of an Apparent Volume Fraction of Soluble Material, Εv, Defined Such that for Particles Composed Only of Ammonium Sulfate and Water Insoluble Compounds, Εv is the Actual Volume Fraction of Soluble Material. the Probability Distribution of Εv is Found to Be Approximately Gaussian in the Εv Range 0.2 to 1.3. the Mean Εv is 0.5, for Electrostatic Aerosol Classifier Settings of 0.2, 0.3, and 0.4 Μm Diameter. -From Authors

Recommended Citation

D. J. Alofs et al., "Measured Spectra of the Hygroscopic Fraction of Atmospheric Aerosol Particles," Journal of Applied Meteorology, vol. 28, no. 2, pp. 126 - 136, American Meteorological Society, Jan 1989.

The definitive version is available at https://doi.org/10.1175/1520-0450(1989)028<0126:MSOTHF>2.0.CO;2

Department(s)

Mechanical and Aerospace Engineering

Second Department

Physics

Third Department

Chemistry

International Standard Serial Number (ISSN)

0894-8763

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2023 American Meteorological Society, All rights reserved.

Publication Date

01 Jan 1989