Modeling radiative transfer by aerosol particles on a filter

Autor(en)

B Gorbunov, Ron S. Hamilton, Regina Hitzenberger

Abstrakt

A model for calculation of radiative transfer in a layer of particles on a fiber filter that takes into account multiple scattering has been developed. It was shown that the model describes calibration curves for the black smoke method. Multiple scattering and variations in the black carbon fraction are the main factors that control complex relationships between substrate loading and optical response. It was obtained that on average for the UK the fraction of the black carbon decreased from about 23% in the 1960s to about 10% in the 1990s. An approach has been suggested to convert black smoke data into PM10. A new method of measuring PM10 based on measuring light reflectance of two filters containing the same aerosol but different surface mass concentrations is suggested. The model can be applied to the integrating plate and other optical methods.

Organisation(en)

Externe Organisation(en)

Middlesex University

Journal

Aerosol Science and Technology

Band

36

Seiten

123-135

Anzahl der Seiten

13

ISSN

0278-6826

DOI

https://doi.org/10.1080/027868202753503985

Publikationsdatum

2002

Peer-reviewed

Ja

ÖFOS 2012

1030 Physik, Astronomie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/6e96fcf7-ddfe-41f2-9205-7a807bab59c7