Spectroscopic analysis of fractional aerosol samples shows that the poorly selective character of absorption of atmospheric aerosol is due mainly to the presence of a subfraction formed by soot particles in the 0.002-0.05 micron size range. A method is proposed for determining soot particle concentration based on the spectral dependence of the extinction coefficient in the near infrared. The specific volume of the soot fraction in the atmosphere is estimated to be sufficient for soot to play an important role in the radiation balance of the earth's atmosphere.
Akademiia Nauk SSSR Fizika Atmosfery i Okeana
- Pub Date:
- December 1979
- Atmospheric Attenuation;
- Short Wave Radiation;
- Spectroscopic Analysis;
- Particle Density (Concentration);