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Depletion of ozone and reservoir species of chlorine and nitrogen oxide in the lower Antarctic polar vortex measured from aircraft

Jurkat, Tina and Voigt, Christiane and Kaufmann, S. and Grooß, J.-U. and Ziereis, Helmut and Dörnbrack, Andreas and Hoor, P. and Bozem, H. and Engel, A. and Bönisch, H. and Keber, T. and Hüneke, T. and Pfeilsticker, K. and Zahn, A. and Walker, K. A. and Boone, C. D. and Bernath, P. F. and Schlager, Hans (2017) Depletion of ozone and reservoir species of chlorine and nitrogen oxide in the lower Antarctic polar vortex measured from aircraft. Geophysical Research Letters, 44 (12), pp. 6440-6449. Wiley. doi: 10.1002/2017GL073270. ISSN 0094-8276.

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Official URL: http://dx.doi.org/10.1002/2017GL073270


Novel airborne in-situ measurements of inorganic chlorine, nitrogen oxide species and ozone were performed inside the lower Antarctic polar vortex and at its edge in September 2012. We focus on one flight during the TACTS/ESMVal campaign with the German research aircraft HALO, reaching latitudes of 65� S and potential temperatures up to 405 K. Using the early winter correlations of reactive trace gases with N2O from ACE-FTS, we find high depletion of chlorine reservoir gases thus active chlorine of up to 0.8 ppbv at 12 km to 14 km altitude in the vortex and 0.4 ppbv at the edge in subsided stratospheric air with mean ages up to 4.5 years. We observe denitrification of up to 4 ppbv, while ozone was depleted by 1.2 ppmv at potential temperatures as low as 380 K.

Item URL in elib:https://elib.dlr.de/114758/
Document Type:Article
Title:Depletion of ozone and reservoir species of chlorine and nitrogen oxide in the lower Antarctic polar vortex measured from aircraft
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Voigt, Christianedlr, ipahttps://orcid.org/0000-0001-8925-7731
Kaufmann, S.dlr, ipaUNSPECIFIED
Grooß, J.-U.fz jülichUNSPECIFIED
Ziereis, Helmutdlr, ipahttps://orcid.org/0000-0001-5483-5669
Dörnbrack, Andreasdlr, ipahttps://orcid.org/0000-0003-0936-0216
Hoor, P.Inst. Phys. d. Atmos., univ. mainzUNSPECIFIED
Bozem, H.Inst. Phys. d. Atmos., univ. mainzUNSPECIFIED
Engel, A.univ. frankfurtUNSPECIFIED
Bönisch, H.univ. frankfurtUNSPECIFIED
Keber, T.univ. frankfurtUNSPECIFIED
Hüneke, T.univ. heidelbergUNSPECIFIED
Pfeilsticker, K.univ. heidelbergUNSPECIFIED
Zahn, A.kit, KarlsruheUNSPECIFIED
Walker, K. A.Univ. Toronto, CanadaUNSPECIFIED
Boone, C. D.Univ. Waterloo, Ontario, CanadaUNSPECIFIED
Bernath, P. F.Old Dominion Uni. Norfork, Vir. USAUNSPECIFIED
Schlager, Hansdlr, IPAUNSPECIFIED
Journal or Publication Title:Geophysical Research Letters
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1002/2017GL073270
Page Range:pp. 6440-6449
Keywords:airborne measurements, chlorine depletion, denitrification, HALO, mass spectrometry
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Project Climatic relevance of atmospheric tracer gases, aerosols and clouds
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Cloud Physics
Institute of Atmospheric Physics > Atmospheric Trace Species
Institute of Atmospheric Physics > Transport Meteorology
Deposited By: Voigt, Dr.rer.nat. Christiane
Deposited On:25 Oct 2017 08:42
Last Modified:31 Jul 2019 20:12

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