9.6 micrometer ozone band /nu sub 3/ intensity

The band intensity of the 9.6 micrometer (nu sub 3) band of ozone was investigated. The nu sub 3 band strength was determined from ultraviolet spectra over the interval 9.36-11.00 micrometers. A set of 34 absorption measurements were made at pressures of about 730 torr and mass paths of 0.002-0.025 atm cm (STP). The ozone amounts were corrected to the Harn (1961) absorption coefficients. The data indicate that the weak-line approximation is valid at least to 0.025 atm cm (STP). A least-squares fit yields a band strength (298 K) of 355/cm/atm cm STP with a standard deviation of 10/cm/atm cm STP, in close agreement with results reported by McCaa and Shaw (1968) and Young and Bunner (1974).