SPECTRAL ABSORPTION-COEFFICIENT DATA ON HCFC-22 AND SF6 FOR REMOTE-SENSING APPLICATIONS

Spectral absorption-coefficients (cross-sections) k(v) (cm(-1)atm(-1)) have been measured in the 7.62, 8.97, and 12.3 mu m bands of HCFC-22 (CHClF2) and the 10.6 mu m bands of SF6 employing a high-resolution Fourier-transform spectrometer. Temperature and total pressure have been varied to simulate conditions corresponding to tropospheric and stratospheric layers in the atmosphere. The k(v) are compared with values measured by us previously using a tunable diode laser spectrometer and with the appropriate entries in HITRAN and GEISA, two of the databases known to the atmospheric scientist. The measured absolute intensities of the bands are compared with previously published values.