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CO measurements from the ACE-FTS satellite instrument: data analysis and validation using ground-based, airborne and spaceborne observations

C. Clerbaux ; M. George ; S. Turquety ; K.A. Walker ; B. Barret ; P. Bernath ; C. Boone ; T. Borsdorff ; J.P. Cammas ; V. Catoire ; M. Coffey ; P.-F. Coheur ; M. Deeter ; M. De Mazière ; J. Drummond ; P. Duchatelet ; E. Dupuy ; R. de Zafra ; F. Eddounia ; D.P. Edwards ; L. Emmons ; B. Funke ; J. Gille ; D.W.T. Griffith ; J. Hannigan ; F. Hase ; M. Höpfner ; N. Jones ; A. Kagawa ; Y. Kasai ; I. Kramer ; E. Le Flochmoën ; N.J. Livesey ; M. López-Puertas ; M. Luo ; E. Mahieu ; Donal P. Murtagh (Institutionen för radio- och rymdvetenskap, Global miljömätteknik) ; Ph. Nédélec ; A. Pazmino ; H. Pumphrey ; P. Ricaud ; C.P. Rinsland ; C. Robert ; M. Schneider ; C. Senten ; G. Stiller ; Anders Strandberg (Institutionen för radio- och rymdvetenskap, Optisk fjärranalys) ; K. Strong ; R. Sussmann ; V. Thouret ; Joachim Urban (Institutionen för radio- och rymdvetenskap, Global miljömätteknik) ; A. Wiacek
Atmospheric Chemistry and Physics (1680-7316 ). Vol. 8 (2008), p. 2569-2594.
[Artikel, refereegranskad vetenskaplig]

The Atmospheric Chemistry Experiment (ACE) mission was launched in August 2003 to sound the atmosphere by solar occultation. Carbon monoxide (CO), a good tracer of pollution plumes and atmospheric dynamics, is one of the key species provided by the primary instrument, the ACE-Fourier Transform Spectrometer (ACE-FTS). This instrument performs measurements in both the CO 1-0 and 2-0 ro-vibrational bands, from which vertically resolved CO concentration profiles are retrieved, from the mid-troposphere to the thermosphere. This paper presents an updated description of the ACE-FTS version 2.2 CO data product, along with a comprehensive validation of these profiles using available observations (February 2004 to December 2006). We have compared the CO partial columns with ground-based measurements using Fourier transform infrared spectroscopy and millimeter wave radiometry, and the volume mixing ratio profiles with airborne (both high-altitude balloon flight and airplane) observations. CO satellite observations provided by nadir-looking instruments (MOPITT and TES) as well as limb-viewing remote sensors (MIPAS, SMR and MLS) were also compared with the ACE-FTS CO products. We show that the ACE-FTS measurements provide CO profiles with small retrieval errors (better than 5% from the upper troposphere to 40 km, and better than 10% above). These observations agree well with the correlative measurements, considering the rather loose coincidence criteria in some cases. Based on the validation exercise we assess the following uncertainties to the ACE-FTS measurement data: better than 15% in the upper troposphere (8–12 km), than 30% in the lower stratosphere (12–30 km), and than 25% from 30 to 100 km.



Denna post skapades 2008-05-19. Senast ändrad 2014-09-02.
CPL Pubid: 71037

 

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Institutioner (Chalmers)

Institutionen för radio- och rymdvetenskap, Global miljömätteknik (2005-2008)
Institutionen för radio- och rymdvetenskap, Optisk fjärranalys (2005-2010)

Ämnesområden

Meteorologi och atmosfärforskning

Chalmers infrastruktur