PRESSURE BROADENING OF CLO BY N-2 AND O-2 NEAR 204 AND 649 GHZ AND NEW FREQUENCY MEASUREMENTS BETWEEN 632 AND 725 GHZ

The N-2 and O-2 pressure broadening of the ClO transitions near 204 an d 649 GHz have been measured between 200 and 300 K. Oxygen broadening has been measured for the transitions near 278 GHz. The accuracy of th e derived air broadening is comparable to that for the air broadening of stable species and is estimated to be within approximate to 3% over the entire temperature range. These transitions are currently being u sed for satellite, balloon, and ground based monitoring of atmospheric ClO, respectively. Some new frequency measurements are reported in th e 632-725 GHz range. These are in good agreement with previous measure ments and predictions.