6533b7cefe1ef96bd12571a5
RESEARCH PRODUCT
Determination of Aerosol Size Distributions from Spectral Attenuation Measurements
Hartmut Grasslsubject
Physicsbusiness.industryMaterials Science (miscellaneous)Mie scatteringcomplex mixturesIndustrial and Manufacturing EngineeringAerosolWeightingWavelengthOpticsDistribution (mathematics)Extinction (optical mineralogy)Business and International ManagementbusinessRefractive indexPhysics::Atmospheric and Oceanic PhysicsOptical depthdescription
An iteration method for the determination of size distributions of aerosols from spectral attenuation data, similar to the one previously published for clouds, is presented. The basis for this iteration is to consider the extinction efficiency factor of particles as a set of weighting functions covering the entire radius region of a distribution. The weighting functions were calculated exactly from the Mie theory. Aerosol distributions are shown derived from tests with analytical size distributions and also generated from measured aerosol extinction data in seven spectral channels from 0.4-microto 10-micro wavelength in continental aerosols. The influence of relative humidity on the complex index of refraction is also discussed.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1971-11-01 | Applied Optics |