Simultaneous measurements of OClO, NO2 and O3 in the Arctic polar vortex by the GOMOS instrument
View/ Open
Authors
Tétard, C.
Fussen, D.
Bingen, C.
Capouillez, N.
Dekemper, E.
Loodts, N.
Mateshvili, N.
Vanhellemont, F.
Kyrölä, E.
Tamminen, J.
Sofieva, V.
Hauchecorne, A.
Dalaudier, F.
Bertaux, J.-L.
D'Andon, O.F.
Barrot, G.
Guirlet, M.
Fehr, T.
Saavedra, L.
Discipline
Earth and related Environmental sciences
Subject
atmospheric chemistry
atomic absorption spectroscopy
nitrogen dioxide
ozone
polar vortex
satellite imagery
stratosphere
transmittance
Arctic
Audience
Scientific
Date
2009Metadata
Show full item recordDescription
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 NO 2. The GOMOS instrument appears to be a very suitable instrument for the monitoring of OClO, NO2 and O3 in the stratosphere during nighttime.
Citation
Tétard, C.; Fussen, D.; Bingen, C.; Capouillez, N.; Dekemper, E.; Loodts, N.; Mateshvili, N.; Vanhellemont, F.; Kyrölä, E.; Tamminen, J.; Sofieva, V.; Hauchecorne, A.; Dalaudier, F.; Bertaux, J.-L.; D'Andon, O.F.; Barrot, G.; Guirlet, M.; Fehr, T.; Saavedra, L. (2009). Simultaneous measurements of OClO, NO2 and O3 in the Arctic polar vortex by the GOMOS instrument. , Atmospheric Chemistry and Physics, Vol. 9, Issue 20, 7857-7866,Type
Article
Peer-Review
Yes
Language
eng