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Observations of the impact of cloud processing on aerosol light-scattering efficiency

  • Author(s): Hegg, Dean A.
  • Covert, David S.
  • Jonsson, Haflidi
  • Khelif, Djamal
  • Friehe, Carl A.
  • et al.
Abstract

Airborne data are presented on the impact of cloud processing on the aerosol mass light-scattering efficiency. The measurements. on marine stratocumulus, suggest that cloud processing significantly enhanced the mass light-scattering efficiency in three of the five cases analysed. Enhancements were of the order of 10% for air detraining from the cloud deck relative to non-detraming air. A diagnostic modelling analysis suggested that the observed enhancements were consistent with the previously proposed explanation of in-cloud sulfate production in the particle size range for efficient light scattering.

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