Current Studies of CH4 from 2.5 to 7 microns

The 3.5 micron region of methane was analyzed. The positions and strengths of approximately 9000 absorption lines in the region from 2400 to 3200 cm were measured. Spectra were obtained at a resolution of 0.1 cm using the Fourier transform spectrometer and at 0.02 cm resolution using the four passed grating spectrometer. The analysis of the 3.5 micron region required the use of spectra of CH4 in other regions, therefore the methane spectrum from 1200 to 4700 cm is indicated. The method used for the compilation of line lists is demonstrated.