Size distribution of near-surface aerosols and its relation to the columnar aerosol optical depthsReport as inadecuate




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1 Space Physics Laboratory

Abstract : Simultaneous data on Aerosol Optical Depth AOD and size segregated, near-surface, aerosol mass concentration was obtained from a Multi wavelength Solar Radiometer MWR and Quartz Crystal Microbalance Impactor QCM, respectively. These were used to examine the association between near-surface aerosol properties and columnar AOD. The spectral AODs were approximated to the Ångström relation ?p=??-?, and the wavelength exponent ? and turbidity coefficient ? have been obtained. In general, ? was found to be well associated with the relative abundance of accumulation mode aerosols estimated from the simultaneous QCM data while ? followed the variations of the coarse mode aerosol mass concentration; the association being closer during periods of continental airmass.





Author: P. S. Pillai - K. Krishna Moorthy -

Source: https://hal.archives-ouvertes.fr/



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