Strato-mesospheric Measurements of Carbon Monoxide with the Odin Sub-millimetre Radiometer: Retrieval and First Results
Journal article, 2004

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.

Author

E. Dupuy

Joachim Urban

Chalmers, Department of Radio and Space Science

P. Ricaud

E. Le Flochmoën

Nicolas Lautié

Chalmers, Department of Radio and Space Science

Donal Murtagh

Chalmers, Department of Radio and Space Science

J. De La Noë

L. El Amraoui

Patrick Eriksson

Chalmers, Department of Radio and Space Science

Peter Forkman

Chalmers, Department of Radio and Space Science

U. Frisk

F. Jégou

Carlos Jimenez Sanchez

Chalmers, Department of Radio and Space Science

Michael Olberg

Chalmers, Onsala Space Observatory

Geophysical Research Letters

0094-8276 (ISSN)

Vol. 31 20

Subject Categories

Astronomy, Astrophysics and Cosmology

DOI

10.1029/2004GL020558

More information

Created

10/8/2017