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Strato-mesospheric Measurements of Carbon Monoxide with the Odin Sub-millimetre Radiometer: Retrieval and First Results

E. Dupuy ; Joachim Urban (Institutionen för radio- och rymdvetenskap) ; P. Ricaud ; E. Le Flochmoën ; Nicolas Lautié (Institutionen för radio- och rymdvetenskap) ; Donal P. Murtagh (Institutionen för radio- och rymdvetenskap) ; J. De La Noë ; L. El Amraoui ; Patrick Eriksson (Institutionen för radio- och rymdvetenskap) ; Peter Forkman (Institutionen för radio- och rymdvetenskap) ; U. Frisk ; F. Jégou ; Carlos Jiménez (Institutionen för radio- och rymdvetenskap) ; Michael Olberg (Onsala Rymdobservatorium)
Geophysical Research Letters (0094-8276). Vol. 31 (2004), 20,
[Artikel, refereegranskad vetenskaplig]

The Sub-Millimetre Radiometer (SMR) aboard the Odin satellite has been measuring vertical profiles of atmospheric trace gases since August 2001. We present the inversion methodology developed for CO measurements and the first retrieval results. CO can be retrieved from a single scan measurement throughout the middle atmosphere, with a typical resolution of similar to3 km and a relative error of similar to10% to similar to25%. Retrieval results are evaluated through comparison with data from the Whole Atmosphere Community Climate Model (WACCM) and observations of the Improved Stratospheric and Mesospheric Sounder (ISAMS) on board the Upper Atmospheric Research Satellite (UARS). Considering the large natural variability of CO, the SMR retrievals give good confirmation of the WACCM results, with an overall agreement within a factor of 2. ISAMS abundances are higher than SMR mixing ratios by a factor of 5-10 above 0.5 hPa from similar to80degreesS to similar to50degreesN.

Denna post skapades 2006-08-28. Senast ändrad 2014-09-02.
CPL Pubid: 1926


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Institutioner (Chalmers)

Institutionen för radio- och rymdvetenskap (1984-2004)
Onsala Rymdobservatorium (1900-2004)


Astronomi, astrofysik och kosmologi

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