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Oelhaf, H.
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First results of ground-based FTIR measurements of atmospheric trace gases in no...
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First results of ground-based FTIR measurements of atmospheric trace gases in Gr...
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Column amounts of trace gases measured by FTIR spectroscopy in Sondre Stromfjord...
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Kiruna balloon campaign comparisons between ILAS and MIPAS-B balloon data along...
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MIPAS-B measurements of ILAS target species during the Kiruna validation campaig...
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First results of ground-based MIPAS measurements of atmospheric trace gases in N...
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Dynamical aspects of ground-based FTIR observations of atmospheric trace gases i...
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Dynamical and chemical aspects of ground-based FTIR measurements of atmospheric...
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First remote sensing measurements of ClOOCl along with ClO and ClONO₂ in activat...
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First remote sensing measurements of ClOOCl along with ClO and ClONO₂ in activat...
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ClONO₂ vertical profile and estimated mixing ratios of ClO and HOCl in winter Ar...
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Vertical profiles of N₂O₅ along with CH₄, N₂O, and H₂O in the late arctic winter...
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Combined MIPAS (airborne/satellite), CALIPSO and in situ study on large potentia...
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Vertical profiles of N₂O₅, HO₂NO₂, and NO₂ in the stratospheric arctic winter, r...
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Chemical ozone loss in the Arctic winter 1991-1992
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Denitrification observed inside the Arctic vortex in February 1995
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Chemical ozone loss in the Arctic winter 1991-1992
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Denitrification observed inside the arctic vortex in February 1995
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Vertical profiles of N₂O₅ and N₂O in the post-Pinatubo late arctic winter strato...
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Vertical profiles of N₂O₅, HO₂NO₂, and NO₂ in the stratospheric arctic winter, r...
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Document Type
Article in Journal/Newspaper
99
Book
3
Book Part
2
Author
Oelhaf, H.
Fischer, H.
61
Wetzel, G.
57
Friedl-Vallon, F.
56
Maucher, G.
50
Clarmann, T. von
34
Ruhnke, R.
32
Trieschmann, O.
31
Seefeldner, M.
30
Kleinert, A.
28
Stowasser, M.
21
Nordmeyer, H.
16
Piesch, C.
13
Engel, A.
12
Höpfner, M.
12
Lengel, A.
12
Kouker, W.
11
Linden, A.
11
Schmidt, U.
11
Kirner, O.
10
Müller, R.
10
Orphal, J.
10
Adrian, G.
9
Wegner, A.
9
Ebersoldt, A.
8
Gulde, T.
8
Gerhardt, L.
7
Thomas, P.
7
Woiwode, W.
7
Adrian, G. P.
6
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Topic
Earth sciences
104
ddc:550
info:eu-repo/classification/ddc/550
104
Cl2
1
ClO
1
ClOOCl
1
OClO
1
The Arctic winter 2010/11 was characterized by a persisting vortex with extremely cold temperatures in the lower stratosphere above northern Scandinavia leading to a strong activation of chlorine compounds (ClOx) like Cl
1
and HOCl which rapidly destroyed ozone when sunlight returned after winter solstice. MIPAS (Michelson Interferometer for Passive Atmospheric Sounding) and TELIS (Terahertz and submillimeter Limb Sounder) balloon measurements obtained in northern Sweden on 31 March 2011 inside the polar vortex have provided vertical profiles of inorganic and organic chlorine species as well as diurnal variations of ClO around sunrise over the whole altitude range in which chlorine is undergoing activation and deactivation. This flight was performed at the end of the winter during the last phase of ClOx deactivation. The complete inorganic and organic chlorine partitioning and budget in the stratosphere has been derived by combining MIPAS-B and TELIS simultaneously observed molecules. A total chlorine amount of 3.41 ± 0.30 ppbv is inferred from the measurements. This value is in line with previously carried out stratospheric observations confirming the slightly decreasing chlorine trend in the stratosphere. Observations are compared and discussed with the output of a multi-year simulation performed with the Chemistry Climate Model EMAC (ECHAM5/MESSy Atmospheric Chemistry). The simulated stratospheric total chlorine amount is in accordance with the MIPAS-B/TELIS observation taking into account the fact that some chlorine source gases and very short lived species are not included in the model
1
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Content Provider
KITopen (Karlsruhe Institute of Technologie)
104
Geographic location
Arctic
90
Greenland
3
Kiruna
3
Ilas
2
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Language
English
98
German
6
Open Polar Keyword
Arctic
90
Arktis*
6
North Sweden
4
Greenland
3
Kiruna
3
Northern Sweden
2
Sondre Stromfjord
1
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