Variations in submicron aerosol composition during the EOPACE program

Michael H. Smith; Martin K. Hill

doi:10.1117/12.283888

23 September 1997 Variations in submicron aerosol composition during the EOPACE program

Michael H. Smith, Martin K. Hill

Proceedings Volume 3125, Propagation and Imaging through the Atmosphere; (1997) https://doi.org/10.1117/12.283888
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

Observations of the size-differentiated composition of aerosol particles obtained during the EOPACE (Electro-Optical Propagation Assessment in Coastal Environments) Air Mass Characterisation Experiment in April 1996 are reported. These measurements were made on board the RV Point Sur along the southern California coast, with special emphasis on the Southern California Bight, and demonstrate the extreme variability ofboth aerosol composition and loadings within this region. A thermal analytical technique, which relies upon the fact that dominant aerosol species volatilise at characteristic temperatures, was utilised to determine aerosol composition and comprised a heater system coupled to a commercial optical particle counter. Accompanying measurements of soot carbon loadings were obtained by means of a commercial aethalometer and clearly demonstrated the impact of urban pollution upon this littoral region. This study formed one element ofthe Air Mass Characterisation Experiment which included the retrieval of aerosol optical depths from NOAA-14 sateffite overpasses ofthe region.

Citation Download Citation

Michael H. Smith and Martin K. Hill "Variations in submicron aerosol composition during the EOPACE program", Proc. SPIE 3125, Propagation and Imaging through the Atmosphere, (23 September 1997); https://doi.org/10.1117/12.283888

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KEYWORDS

Aerosols

Atmospheric particles

Carbon

Satellites

Particles

Ocean optics

Electro optics

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