In Situ Measurements of Hygroscopicity of Aerosol Particles

Author

Otmar Schmid, Missouri University of Science and TechnologyFollow
Donald E. Hagen, Missouri University of Science and TechnologyFollow
A. Ray Hopkins
Max B. Trueblood, Missouri University of Science and TechnologyFollow
Philip D. Whitefield, Missouri University of Science and TechnologyFollow

Abstract

The hygroscopicity of aerosol particles plays an important role in their evolution in the atmosphere. The Cloud and Aerosol Science Laboratory of the University of Missouri-Rolla, has developed a device to perform airborne and ground based measurements of hygroscopicity. This is accomplished by two Differential Mobility Analyzers (DMA) in series with a saturator between them. The first DMA selects a monodispersely sized dry aerosol sample which is exposed to a known relative humidity in the saturator. The resulting size spectrum, measured by the second DMA, characterizes the hygroscopicity of the sample aerosols. This talk presents a description of the device and the discussion of measurement results.

Recommended Citation

O. Schmid et al., "In Situ Measurements of Hygroscopicity of Aerosol Particles," Transactions of the Missouri Academy of Science, vol. 31, p. 55, Apr 1997.

Meeting Name

Missouri Academy of Science meeting, (1997: Apr., Warrensburg, MO)

Department(s)

Chemistry

Second Department

Physics

Comments

Cloud and Aerosol Sciences Laboratory, University of Missouri--Rolla

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1997 The Authors, All rights reserved.

Publication Date

01 Apr 1997