Tenth Conference on Electromagnetic and Light Scattering
DOI: 10.1615/ICHMT.2007.ConfElectromagLigScat
ISBN Print: 978-1-56700-244-7
Correction factors for a total scatter/backscatter nephelometer
pages 169-172
DOI: 10.1615/ICHMT.2007.ConfElectromagLigScat.450
ABSTRACT
Total aerosol scattering and backscattering atmospheric values are typically obtained with an integrating nephelometer. Due to design limitations, measurements usually do not cover the full (0°−180°) angular range, and correction factors are necessary. The effect of angle cutoff is examined for a range of particle size distributions and refractive indices. Scattering data for sub-micron particles can be corrected by the use of a modified Anderson approximation, while data for larger particle distributions can be approximated by a function of the effective size parameter. Such approximation will help more accurate corrections for angle range.