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Variabilität der arktischen Ozonschicht: Analyse und Interpretation bodengebunde...
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Variabilität der arktischen Ozonschicht: Analyse und Interpretation bodengebunde...
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Ground-based millimeter-wave measurements of stratospheric ozone and chlorine mo...
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Radiative and dynamical contributions to past and future Arctic stratospheric te...
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On shortterm variability of Arctic stratospheric ozone
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Arctic winter 2010/2011 at the brink of an ozone hole
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Ground based millimeter-wave observations of Arctic ozone depletion during winte...
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Chemical ozone depletion during Arctic winter 1997/98 derived from ground based...
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Rapid meridional transport of tropical airmasses to the Arctic during the major...
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Rapid meridional transport of tropical airmasses to the Arctic during the major...
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Rapid meridional transport of tropical airmasses to the Arctic during the major...
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Rapid meridional transport of tropical airmasses to the Arctic during the major...
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Rapid meridional transport of tropical airmasses to the Arctic during the major...
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Rapid meridional transport of tropical airmasses to the Arctic during the major...
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The MIPAS HOCl climatology
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Untersuchung der arktischen Stratosphäre mit dem Radiometer für Atmosphärische M...
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Large decadal scale changes of polar ozone suggest solar influence
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Large decadal scale changes of polar ozone suggest solar influence
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The MIPAS HOCl climatology
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The MIPAS HOCl climatology
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info:eu-repo/classification/ddc/550
Earth sciences
ddc:550
Atmosphere
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean
Verlagsveröffentlichung
[SDU]Sciences of the Universe [physics]
article
Cl2
ClO
ClOOCl
Experimentelle Verfahren
OClO
Atmosphärenprozessoren
Institut für Weltraumsensorik
Medicine and Health Sciences
Social and Behavioral Sciences
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
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
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
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
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