Abstract

Solar occultation spectra obtained with a balloon-borne interferometer have been used to study continuous absorption by N₂ and CO₂ near 2400 cm⁻¹ in the lower stratosphere. Synthetic continuum transmittances, calculated from published coefficients for far-wing absorption by CO₂ lines and for pressure-induced absorption by the fundamental band of N₂, are in fair agreement with the observed stratospheric values. The continuum close to the ν₃R-branch band head of CO₂ is sensitive to the CO₂ far-wing line shape. Therefore, given highly accurate knowledge of the N₂ continuum from laboratory data, high-resolution stratospheric spectra provide a sensitive means for in situ testing of various air-broadened CO₂ line shapes at low temperatures.

© 1981 Optical Society of America

Transmission window near 2400 cm⁻¹: an experimental and modeling study

Pierre L. Roney, F. Reid, and J.-M. Theriault
Appl. Opt. 30(15) 1995-2004 (1991)

Line mixing effects in solar occultation spectra of the lower stratosphere: measurements and comparisons with calculations for the 1932-cm⁻¹ CO₂Q branch

Curtis P. Rinsland and L. Larrabee Strow
Appl. Opt. 28(3) 457-464 (1989)

Effect of interferogram smearing on atmospheric limb sounding by Fourier transform spectroscopy

Jae H. Park
Appl. Opt. 21(8) 1356-1366 (1982)

Stratospheric N₂O mixing ratio profile from high-resolution balloon-borne solar absorption spectra and laboratory spectra near 1880 cm⁻¹

C. P. Rinsland, A. Goldman, F. J. Murcray, D. G. Murcray, M. A. H. Smith, R. K. Seals, J. C. Larsen, and P. L. Rinsland
Appl. Opt. 21(23) 4351-4355 (1982)

Temperature dependence of the absorption in the region beyond the 4.3-μm band head of CO₂. 2: N₂ and O₂ broadening

C. Cousin, R. Le Doucen, C. Boulet, and A. Henry
Appl. Opt. 24(22) 3899-3907 (1985)