Modeling Interaction of Radiation with Aerosols using Mie Scattering Formulation and Retrieval of Aerosol Size Parameters
No Thumbnail Available
Date
2007-07
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Addis Ababa University
Abstract
Determining the aerosol size distribution function is a fundamental problem in aerosol
science. The size distribution function describes how certain property of a particle
population is distributed over different particle sizes. Since the size distribution cannot
be measured directly, an estimate for the size distribution is determined from
indirect measurements using inverse theory. Estimating size distribution is an illposed
inverse problem, therefore, we have developed non-linear inversion algorithm
to retrieve aerosol size parameters. The non-linear inversion algorithm has been applied
to measured aerosol optical depth at Bahrain station, which is one of the stations
in Aerosol Robotic Network (AERONET).
The sensitivity of the retrieved columnar size distribution to the assumed refractive
index was investigated for aerosol containing water droplets and dust. The dust
aerosol shows insignificant sensitivity to changes in the imaginary part of the refractive
index while water soluble aerosols have shown appreciable sensitivity to the
imaginary part of the refractive index
Description
Keywords
Modeling Interaction of Radiation