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Identification of the v 3 vibration‐rotation band of CF 4 in balloon‐borne infrared solar spectra
Author(s) -
Goldman A.,
Murcray D. G.,
Murcray F. J.,
Cook G. R.,
Van Allen J. W.,
Bonomo F. S.,
Blatherwick R. D.
Publication year - 1979
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/gl006i007p00609
Subject(s) - spectral line , infrared , infrared spectroscopy , absorption spectroscopy , sunset , absorption (acoustics) , physics , materials science , analytical chemistry (journal) , astrophysics , optics , chemistry , astronomy , chromatography , quantum mechanics
Infrared solar spectra in the 850 to 1350 cm −1 region, at 0.02 cm −1 resolution, were obtained during a balloon flight made on 27 October 1978 from Alamogordo, New Mexico. Analysis of the 1275–1290 cm −1 region indicates that the atmospheric absorption lines of CH 4 , N 2 O, H 2 O, HNO 3 and CO 2 near 1283 cm −1 are superimposed on a broader absorption feature which we interpret as due to the v 3 band of CF 4 . Fine structure of CF 4 is also identified. Preliminary estimates from the sunset spectra show approximately 75 pptv CF 4 near 25 km.