Abstract

The atmospheric aerosol particle size distribution was examined using measured spectral scattering coefficients in the wavelength region 0.40-2.27 µ. It was found that the aerosol on a particular day can be represented by a two-component composite, the main component having a Junge distribution of the form <i>dN</i>/<i>d</i> logr=Cr<sup>-n</sup> and the other having either a distribution of larger particles similar to that of aerosols found in maritime air or a relatively monodisperse distribution contained in a narrow radius interval. This study shows that estimates of aerosol size distribution may be in error if based only on attenuation measurements in the visible region.

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References

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  1. C. E. Junge, "Atmospheric composition," in Handbook of Geophysics for Air Force Designers (Air Force Cambridge Research Center, Cambridge, Massachusetts, 1957).
  2. J. A. Curcio and K. A. Durbin, NRL Rept. 5368 (October 6, 1959).
  3. H. C. van de Hulst, Light Scattering by Small Particles (John Wiley & Sons, New York, 1957), p. 418.
  4. H. K. Weickman and H. J. Aufin Kampe, J. Meteorol. 10, 204 (1953).
  5. G. L. Knestrick, T. H. Cosden, and J. A. Curcio, J. Opt. Soc. Am. 50, 504(A) (1960).
  6. W. E. K. Middleton, Vision throug the Atmosphere (University of Toronto Press, Toronto, Canada, 1952), p. 103.
  7. H. W. Yates and J. H. Taylor, NRL Rept. 5453 (June 8, 1960).
  8. D. Deirmendjian, Quart. J. Roy. Meteorol. Soc. 85, 404 (1959).

Cosden, T. H.

G. L. Knestrick, T. H. Cosden, and J. A. Curcio, J. Opt. Soc. Am. 50, 504(A) (1960).

Curcio, J. A.

G. L. Knestrick, T. H. Cosden, and J. A. Curcio, J. Opt. Soc. Am. 50, 504(A) (1960).

J. A. Curcio and K. A. Durbin, NRL Rept. 5368 (October 6, 1959).

Deirmendjian, D.

D. Deirmendjian, Quart. J. Roy. Meteorol. Soc. 85, 404 (1959).

Durbin, K. A.

J. A. Curcio and K. A. Durbin, NRL Rept. 5368 (October 6, 1959).

Junge, C. E.

C. E. Junge, "Atmospheric composition," in Handbook of Geophysics for Air Force Designers (Air Force Cambridge Research Center, Cambridge, Massachusetts, 1957).

Kampe, H. J. Aufin

H. K. Weickman and H. J. Aufin Kampe, J. Meteorol. 10, 204 (1953).

Knestrick, G. L.

G. L. Knestrick, T. H. Cosden, and J. A. Curcio, J. Opt. Soc. Am. 50, 504(A) (1960).

Middleton, W. E. K.

W. E. K. Middleton, Vision throug the Atmosphere (University of Toronto Press, Toronto, Canada, 1952), p. 103.

Taylor, J. H.

H. W. Yates and J. H. Taylor, NRL Rept. 5453 (June 8, 1960).

van de Hulst, H. C.

H. C. van de Hulst, Light Scattering by Small Particles (John Wiley & Sons, New York, 1957), p. 418.

Weickman, H. K.

H. K. Weickman and H. J. Aufin Kampe, J. Meteorol. 10, 204 (1953).

Yates, H. W.

H. W. Yates and J. H. Taylor, NRL Rept. 5453 (June 8, 1960).

Other (8)

C. E. Junge, "Atmospheric composition," in Handbook of Geophysics for Air Force Designers (Air Force Cambridge Research Center, Cambridge, Massachusetts, 1957).

J. A. Curcio and K. A. Durbin, NRL Rept. 5368 (October 6, 1959).

H. C. van de Hulst, Light Scattering by Small Particles (John Wiley & Sons, New York, 1957), p. 418.

H. K. Weickman and H. J. Aufin Kampe, J. Meteorol. 10, 204 (1953).

G. L. Knestrick, T. H. Cosden, and J. A. Curcio, J. Opt. Soc. Am. 50, 504(A) (1960).

W. E. K. Middleton, Vision throug the Atmosphere (University of Toronto Press, Toronto, Canada, 1952), p. 103.

H. W. Yates and J. H. Taylor, NRL Rept. 5453 (June 8, 1960).

D. Deirmendjian, Quart. J. Roy. Meteorol. Soc. 85, 404 (1959).

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