MEASUREMENTS OF HIGH-RESOLUTION ULTRAVIOLET-VISIBLE ABSORPTION CROSS-SECTIONS AT STRATOSPHERIC TEMPERATURES .1. NITROGEN-DIOXIDE

Authors
FROST GJ GOSS LM VAIDA V
Citation
Gj. Frost et al., MEASUREMENTS OF HIGH-RESOLUTION ULTRAVIOLET-VISIBLE ABSORPTION CROSS-SECTIONS AT STRATOSPHERIC TEMPERATURES .1. NITROGEN-DIOXIDE, JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 101(D2), 1996, pp. 3869-3877
Citations number
28
Categorie Soggetti
Metereology & Atmospheric Sciences
Journal title
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES → ACNP
Volume
101
Issue
D2
Year of publication
1996
Pages
3869 - 3877
Database
ISI
SICI code
Abstract
A method for obtaining high-resolution, temperature dependent absorpti on cross sections in the ultraviolet and visible regions is described. The technique combines a Fourier transform spectrometer with a supers onic jet expansion for sample preparation. Infrared spectroscopy is us ed to determine the temperature of the sample and to reveal any interf erences in the ultraviolet-visible measurement. This method is applied to the measurement of absorption cross sections of 200 +/- 20 K nitro gen dioxide in the 370- to 497-nm region, at resolutions of 2 and 0.5 cm(-1).