A Study of Aerosols in Pacific Air Masses

Autor: F.L. Ludwig, C. E. Junge, Elmer Robinson
Rok vydání: 1969
Předmět:
Zdroj: Journal of Applied Meteorology. 8:340-347
ISSN: 0021-8952
DOI: 10.1175/1520-0450(1969)008<0340:asoaip>2.0.co;2
Popis: This paper describes a program of aerosol measurements made in the fall of 1965 at Cape Blanco and Crater Lake, Ore. Aerosol size distributions were determined with a Royco light-scattering type particle counter and with condensation nuclei counters. Size distributions at Crater Lake (2200 m altitude) were found to be well approximated by power law distributions with exponents between 3 and 4. The Cape Blanco data agree well with earlier measurements of sea-spray, aerosol size distributions. A Goetz aerosol centrifuge was used, in conjunction with filter sampling, to determine the size distribution of the chloride- and sulfur-compound fractions of the aerosol. At Crater Lake, sulfur-to-chloride ratios of about 8 were observed and considerable concentrations of other materials could be inferred. The data indicate that significant amounts of sea-spray aerosol did not penetrate upward to altitudes >2000 m. The aerosols identified with these 2000 m tropospheric levels are believed to be aged aerosols...
Databáze: OpenAIRE