Aerosol extinction and aerosol optical thickness in the atmosphere over the Baltic Sea determined with lidar

This work presents the results of investigations of aerosol extinction and aerosol optical thickness in the coastal areas of the southern Baltic Sea. The investigations were carried out under various weather conditions and in various seasons in 1996–2000. Aerosols carried on winds from 300°-N-60° ca...

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Bibliographic Details
Published in:Journal of aerosol science 2002-06, Vol.33 (6), p.907-921
Main Authors: ZIELINSKI, T, ZIELINSKI, A
Format: Article
Language:English
Subjects:
Aerosol
Aerosols
Chemistry
Colloidal state and disperse state
Exact sciences and technology
Extinction
General and physical chemistry
Lidar
Marine
Optical thickness
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Summary:This work presents the results of investigations of aerosol extinction and aerosol optical thickness in the coastal areas of the southern Baltic Sea. The investigations were carried out under various weather conditions and in various seasons in 1996–2000. Aerosols carried on winds from 300°-N-60° can be regarded as of marine origin. Their ensemble consisted of non-absorbing water droplets with the same light refractive index as sea water. The ensemble of aerosols carried on winds from 240°-S-120° consisted of a mixture of particles of both marine and continental origin, which have both absorbing and scattering properties. The values of the aerosol extinction and aerosol optical thickness in the atmosphere over the coastal zone of the southern Baltic Sea obtained from lidar measurements varied from 0.0038 to 0.0727 (km −1) and from 0.014 to 0.36, respectively, and they strongly depended on wind speed and direction.
ISSN:0021-8502
1879-1964
DOI:10.1016/S0021-8502(02)00043-5