Abstract
Differential optical absorption spectroscopy (DOAS) has become a widely used method to measure trace gases in the atmosphere. Their concentration is retrieved by a numerical analysis of the atmospheric absorption spectra, which often are a combination of overlapping absorption structures of several trace gases. A new analysis procedure was developed, modeling atmospheric spectra with the absorption structures of the individual trace gases, to determine their concentrations. The procedure also corrects differences in the wavelength–pixel mapping of these spectra. A new method to estimate the error of the concentrations considers the uncertainty of this correction and the influence of random residual structures in the absorption spectra.
© 1996 Optical Society of America
Full Article | PDF ArticleMore Like This
Martin Hausmann, Uwe Brandenburger, Theo Brauers, and Hans-Peter Dorn
Appl. Opt. 38(3) 462-475 (1999)
Theo Brauers, Martin Hausmann, Uwe Brandenburger, and Hans-Peter Dorn
Appl. Opt. 34(21) 4472-4479 (1995)
Jochen Stutz and Ulrich Platt
Appl. Opt. 36(6) 1105-1115 (1997)