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GEOPHYSICAL RESEARCH LETTERS, VOL. 24, NO. 22, PAGES 2753–2756, 1997

Real-Time Single Particle Monitoring of a Relative Increase in Marine Aerosol Concentration during Winter Rainstorms

Christopher A. Noble

Department of Chemistry, University of California, Riverside, CA


Kimberly A. Prather

Department of Chemistry, University of California, Riverside, CA


Abstract

During the months of December 1996 and January 1997, aerosol characterization was performed in real-time at Riverside, CA, an inland location approximately 100 km east of the Los Angeles coast. Analysis was performed on a single particle basis with measurements of both particle size and composition. Data were collected throughout the course of five rainstorms. Single particle mass spectra demonstrate that obvious composition changes occur in the aerosol systems as the marine air mass is transported inland. While precipitation scavenging of aerosols was observed, there was a significant relative increase of sea salt particles in the non-scavenged aerosol. Compositionally-resolved particle size distributions also demonstrate real-time changes that occur in the atmospheric aerosol sample.

Received 31 March 1997; accepted 7 October 1997.

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Citation: Noble, C. A., and K. A. Prather (1997), Real-Time Single Particle Monitoring of a Relative Increase in Marine Aerosol Concentration during Winter Rainstorms, Geophys. Res. Lett., 24(22), 2753–2756.