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| Titel |
Simultaneous measurements of OClO, NO2 and O3 in the Arctic polar vortex by the GOMOS instrument |
| VerfasserIn |
C. Tetard, D. Fussen, C. Bingen, N. Capouillez, E. Dekemper, N. Loodts, N. Mateshvili, F. Vanhellemont, E. Kyrölä, J. Tamminen, V. Sofieva, A. Hauchecorne, F. Dalaudier, J.-L. Bertaux, O. Fanton d'Andon, G. Barrot, M. Guirlet, T. Fehr, L. Saavedra |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 9, no. 20 ; Nr. 9, no. 20 (2009-10-20), S.7857-7866 |
| Datensatznummer |
250007695
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| Publikation (Nr.) |
 copernicus.org/acp-9-7857-2009.pdf |
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| Zusammenfassung |
| We present the first nighttime measurements of OClO from a limb-viewing
satellite instrument in the Arctic polar vortex. The relationship between
OClO, NO2 and O3 slant column densities in the Arctic polar vortex are
analyzed from the GOMOS measurements. The retrieval process is based on a
differential optical absorption spectroscopy (DOAS) method applied on the
weighted median GOMOS transmittances. A study of the longitudinal
distributions of OClO, NO2 and O3 above 65° north in January
2008 is presented. It shows a strong halogen activation in the lower
stratosphere and a strong denoxification in the entire stratosphere inside
the Arctic polar vortex. Time series of temperatures and OClO, NO2 and
O3 slant column densities for the winters 2002/2003 to 2007/2008 are also
presented. They highlight the correlation between temperature, OClO and
NO2. The GOMOS instrument appears to be a very suitable instrument for the
monitoring of OClO, NO2 and O3 in the stratosphere during nighttime. |
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