Atmospheric Chemistry and Physics Observation of mesospheric air inside the arctic stratospheric polar

Abstract. During several balloon flights inside the Arctic po-lar vortex in early 2003, unusual trace gas distributions were observed, which indicate a strong influence of mesospheric air in the stratosphere. The tuneable diode laser (TDL) in-strument SPIRALE (Spectroscopie Infra-Rouge par Absorp-ti...

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Bibliographic Details
Main Authors: Atmos Chem Phys, G. Wetzel, K. Grunow, N. Huret, M. Pirre
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Published: 2005
Subjects:
Arctic
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.592.7956
http://hal.archives-ouvertes.fr/docs/00/32/84/17/PDF/acp-6-267-2006.pdf
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Summary:Abstract. During several balloon flights inside the Arctic po-lar vortex in early 2003, unusual trace gas distributions were observed, which indicate a strong influence of mesospheric air in the stratosphere. The tuneable diode laser (TDL) in-strument SPIRALE (Spectroscopie Infra-Rouge par Absorp-tion de Lasers Embarqués) measured unusually high CO val-ues (up to 600 ppb) on 27 January at about 30 km altitude. The cryosampler BONBON sampled air masses with very high molecular Hydrogen, extremely low SF6 and enhanced CO values on 6 March at about 25 km altitude. Finally, the MIPAS (Michelson Interferometer for Passive Atmospheric Sounding) Fourier Transform Infra-Red (FTIR) spectrome-ter showed NOy values which are significantly higher than NOy * (the NOy derived from a correlation between N2O and NOy under undisturbed conditions), on 21 and 22 March in

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