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Journal article

Optical particle counter measurement of marine aerosol hygroscopic growth

Snider J, Petters M ...see all

Atmospheric Chemistry and Physics Discussions, vol. 7, issue 4 (2007) pp. 12381-12415

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Abstract

A technique is developed for the determination of the hygroscopic growth factor of dry particles with diameter between 0.3 and 0.6 mu m and is applied to measurements made during the second Dynamics and Chemistry of Marine Stratocumulus experiment (DYCOMS-II). Two optical particle counters are utilized, one measures the aerosol size spectrum at ambient relative humidity and the other simultaneously dries the aerosol prior to light scattering detection. Growth factors are based on measurements made in the region of the Mie scattering curve where scattered light intensity increases monotonically with dry and wet particle diameter, i.e. D

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Authors

  • J. R. Snider

  • M. D. Petters

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