Open AccessA fixed frequency aerosol albedometer
Author(s) -
John E. Thompson,
Nick Barta,
Danielle Policarpio,
Richard Duvall
Publication year - 2008
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.002191
Subject(s) - nephelometer , aerosol , optics , scattering , extinction (optical mineralogy) , single scattering albedo , materials science , albedo (alchemy) , molar absorptivity , light scattering , spectroscopy , attenuation coefficient , forward scatter , physics , meteorology , art , quantum mechanics , performance art , art history
A new method for the measurement of aerosol single scatter albedo (omega) at 532 nm was developed. The method employs cavity ring-down spectroscopy (CRDS) for measurement of aerosol extinction coefficient (b(ext)) and an integrating sphere nephelometer for determination of aerosol scattering coefficient (b(scat)). A unique feature of this method is that the extinction and scattering measurements are conducted simultaneously, on the exact same sample volume. Limits of detection (3s) for the extinction and scattering channel were 0.61 Mm(-1) and 2.7 Mm(-1) respectively.