Climate Change 2001:
Working Group I: The Scientific Basis
Other reports in this collection

Figure 5.1: Extinction efficiency (per unit total aerosol mass) and single scattering albedo of aerosols. The calculations are integrated over a typical solar spectrum rather than using a single wavelength.
Aerosols with diameters between about 0.1 and 2 µm scatter the most light per unit mass. Coarse mode aerosols (i.e., those larger than accumulation mode) have a smaller single scattering albedo even if they are made of the same material (i.e., refractive index) as accumula-tion mode aerosols. If the refractive index 1.37 0.001i is viewed as that of a hydrated aerosol then the curve represents the wet extinction efficiency. The dry extinction efficiency would be larger and shifted to slightly smaller diameters.

Back to text

Table of contents
Other reports in this collection