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Laboratoire d'aérologie |  |
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Laboratoire d'aérologie | |
| HAL : hal-00328240, version 1 |
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| Atmospheric Chemistry and Physics Discussions 7, 5 (2007) 15277-15340 |
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| CO measurements from the ACE-FTS satellite instrument: data analysis and validation using ground-based, airborne and spaceborne observations |
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| C. Clerbaux 1M. George 1 |
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| (30/10/2007) |
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| 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. |
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| 1 : | Service d'aéronomie (SA) |
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CNRS : UMR7620 – INSU – Université Pierre et Marie Curie [UPMC] - Paris VI – Université de Versailles Saint-Quentin-en-Yvelines |
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| 2 : | Department of Chemistry |
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University of Waterloo |
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| 3 : | Department of Physics (Physics) |
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University of Toronto |
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| 4 : | Laboratoire d'aérologie (LA) |
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CNRS : UMR5560 – Observatoire Midi-Pyrénées – INSU – Université Paul Sabatier [UPS] - Toulouse III |
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| 5 : | Department of Chemistry [York] |
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University of York |
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| 6 : | Forschungszentrum Karlsruhe |
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Forschungszentrum Karlsruhe |
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| 7 : | Laboratoire de physique et chimie de l'environnement (LPCE) |
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CNRS : UMR6115 – INSU – Université d'Orléans |
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| 8 : | National Center for Atmospheric Research (NCAR) |
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National Center for Atmospheric Research |
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| 9 : | Spectroscopie de l'atmosphère |
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Chimie Quantique et Photophysique |
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| 10 : | Belgian Institute for Space Aeronomy / Institut d'Aéronomie Spatiale de Belgique (BIRA-IASB) |
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Belgian Institute for Space Aeronomy |
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| 11 : | Department of Physics & Atmospheric Science |
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Department of Physics & Atmospheric Science |
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| 12 : | Université de Liège |
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Université de Liège |
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| 13 : | Department of Physics and Astronomy |
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Department of Physics and Astronomy |
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| 14 : | Instituto de Astrofisica |
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Instituto de Astrofisica |
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| 15 : | Dept. of Chemistry |
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University of Wollongong |
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| 16 : | Institutes für Meteorologie und Klimaforschung (IMK) |
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Technical University of Karlsruhe |
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| 17 : | Fujitsu FIP Corporation |
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Fujitsu FIP Corporation |
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| 18 : | National Institute of Information and Communications Technology (NICT) |
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National Institute of Information and Communications Technology |
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| 19 : | Microwave Atmospheric Science Team |
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Microwave Atmospheric Science Team |
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| 20 : | Jet Propulsion Laboratory [NASA] (JPL) |
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NASA – California Institute of Technology |
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| 21 : | Chalmers University of Technology (Chalmers) |
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Chalmers University of Technology |
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| 22 : | School of GeoSciences |
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School of GeoSciences |
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| 23 : | NASA Langley Research Center |
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NASA Langley Research Center |
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| Domaine | : | Planète et Univers/Océan, Atmosphère |
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| Liste des fichiers attachés à ce document : | |||||
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| hal-00328240, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00328240 | |
| oai:hal.archives-ouvertes.fr:hal-00328240 | |
| Contributeur : Publication EGU | |
| Soumis le : Mardi 30 Octobre 2007, 08:00:00 | |
| Dernière modification le : Vendredi 10 Octobre 2008, 08:41:24 | |
