Distributions of Aerosol Extinction to Backscatter Ratios Derived from Cluster Analysis of AERONET Data

Author

Omar, Ali H. ; Won, Jae-Gwang

Author_Institution

NASA Langley Res. Center Sci. Directorate, Hampton, VA

fYear

2006

fDate

July 31 2006-Aug. 4 2006

Firstpage

577

Lastpage

580

Abstract

The extinction-to-backscatter ratio (Sa) values and phase functions were calculated from mean properties of aerosol models determined from a statistically significant number of AERONET measurements. Cluster analysis by partitioning was used to categorize the AERONET data set based on several optical and physical characteristics of the aerosol. Using the mean values of the optical and microphysical properties together with the geographic locations, we identified these categories as desert dust, biomass burning, urban industrial pollution, rural background, polluted marine, and dirty pollution.

Keywords

aerosols; atmospheric optics; backscatter; light scattering; remote sensing by laser beam; AERONET data; aerosol backscatter; aerosol extinction; biomass burning; cluster analysis; desert dust; dirty pollution; extinction-to-backscatter ratio; microphysical properties; optical properties; polluted marine; rural background; urban industrial pollution; Aerosols; Backscatter; Biomedical optical imaging; Data analysis; Environmentally friendly manufacturing techniques; Extinction coefficients; Industrial pollution; Phase measurement; Pollution measurement; Urban pollution;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2006. IGARSS 2006. IEEE International Conference on

Conference_Location

Denver, CO

Print_ISBN

0-7803-9510-7

Type

conf

DOI

10.1109/IGARSS.2006.152

Filename

4241299