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High resolution infrared absorptivities for gaseous chlorine nitrate
Author(s) -
Graham R. A.,
Tuazon E. C.,
Winer A. M.,
Pitts J. N.,
Molina L. T.,
Beaman L.,
Molina M. J.
Publication year - 1977
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl004i001p00003
Subject(s) - infrared , torr , analytical chemistry (journal) , infrared spectroscopy , stratosphere , chlorine , resolution (logic) , spectral resolution , spectral line , chemistry , optics , atmospheric sciences , environmental chemistry , physics , organic chemistry , astronomy , artificial intelligence , computer science , thermodynamics
High resolution infrared absorptivities of chlorine nitrate (ClONO 2 ) are required in order to quantitatively evaluate, by examination of infrared spectra obtained recently from balloon‐borne spectrometers, the possible occurrence of this compound in the stratosphere. In the present study, infrared absorptivities for four absorption bands of gaseous ClONO 2 have been measured at 0.0625 cm −1 spectral resolution with a Fourier transform infrared (FT‐IR) system. Spectra were obtained at two pressures (0.05 and 1.05 torr) of pure ClONO 2 and with 125 torr of N 2 added to a 0.50 torr sample. Absorptivities for a range of spectral resolutions (0.0625, 0.125, 0.25 and 0.50 cm −1 ) have been calculated from the data.