P7.3
Discoveries from the Aura MLS OH and HO2 measurements
Herbert. M. Pickett, JPL, Pasadena, CA; and T. Canty, R. Salawitch, S. Sander, and N. Livesey
The Aura MLS instrument measures OH near 2512 GHz and HO2 near 660 GHz. The OH bands have sensitivity to obtain daily maps for 21 – 0.003 hPa. With monthly zonal means, OH can be measured down to 32 hPa and the HO2 radical can be measured over 21-0.032 hPa. Both measurements have been validated in Sept. 2004 and Sept. 2005 using the balloon-borne BOH, FIRS-2 and SLS instruments. Ground-based OH column measurements show good agreement with integrated columns derived from MLS OH profiles. A photochemical model for OH and HO2 concentrations compares very well with the MLS profiles. Morphology and climatology of HOx will be presented.
Poster Session 7, Stratospheric Chemistry and Ozone Recovery Posters
Thursday, 23 August 2007, 3:30 PM-5:30 PM, Holladay
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