ANALYSIS OF BRO MEASUREMENTS FROM THE GLOBAL OZONE MONITORING EXPERIMENT

The Global Ozone Monitoring Experiment (GOME), launched on the ESA ERS -2 satellite in April 1995, measures solar back scatter spectra from w hich atmospheric BrO columns may be derived globally with high precisi on (slant column uncertainties of +/-3x10(13) cm(-2) or less). Obtaini ng such precision requires additional characterization of GOME spectra , reference spectra that are well calibrated in wavelength, and a fitt ing method capable of reproducing measurements to several parts in 10( 4). This paper describes these elements of the data processing and giv es examples of BrO distributions in the stratosphere and enhanced trop ospheric BrO in the polar springtime.