Details

Autor(en) / Beteiligte

• Tetard, C
• Fussen, D
• Bingen, C
• Capouillez, N
• Dekemper, E
• Loodts, N
• Mateshvili, N
• Vanhellemont, F
• Kyroelae, E
• Tamminen, J
• Sofieva, V
• Hauchecorne, A
• Dalaudier, F
• Bertaux, J-L
• d'Andon, OFanton
• Barrot, G
• Guirlet, M
• Fehr, T
• Saavedra, L

Titel

Simultaneous measurements of OClO, NO sub(2) and O sub(3) in the Arctic polar vortex by the GOMOS instrument

Ist Teil von

• Atmospheric chemistry and physics, 2009-10, Vol.9 (20), p.7857-7866

Erscheinungsjahr

2009

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• We present the first nighttime measurements of OClO from a limb-viewing satellite instrument in the Arctic polar vortex. The relationship between OClO, NO sub(2) and O sub(3) 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, NO sub(2) and O sub(3) above 65 degree 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, NO sub(2) and O sub(3) slant column densities for the winters 2002/2003 to 2007/2008 are also presented. They highlight the correlation between temperature, OClO and NO sub(2). The GOMOS instrument appears to be a very suitable instrument for the monitoring of OClO, NO sub(2) and O sub(3) in the stratosphere during nighttime.