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Atmos. Chem. Phys. Discuss., 11, 1429–1455, 2011 Atmospheric
m-phys-/11/1429/2011/ Chemistry ACPD
doi:-11-1429-2011 and Physics
11, 1429–1455, 2011
© Author(s) 2011. CC Attribution License. Discussions
Descent of odd
This discussion paper is/has been under review for the journal Atmospheric Chemistry
nitrogen after sudden
and Physics (ACP). Please refer to the corresponding final paper in ACP if available.
stratospheric
warming
Mesosphere-to-stratosphere descent of S.-M. Salmi et al.
odd nitrogen in February–March 2009 Title Page
after sudden stratospheric warming Abstract Introduction
Conclusions References
S.-M. Salmi1,2, P. T. Verronen1, L. Tholix¨ 1, E. Kyrol¨ a¨ 1, L. Backman1,
1 1,3
A. Yu. Karpechko , and A. Seppal¨ a¨ Tables Figures
1Finnish Meteorological Institute, Helsinki, Finland
J I
2Department of Physics, University of Helsinki, Helsinki, Finland
3
British Antarctic Survey (NERC), Cambridge, UK J I
Received: 23 November 2010 – Accepted: 22 December 2010 – Published: 18 January 2011 Back Close
Correspondence to: S.-M. Salmi (sanna-mari.******@)
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Published by Copernicus Publications on behalf of the European Geosciences Union.
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icsinPpr|Dsuso ae icsinPpr|Dsuso ae | Paper Discussion | Paper Discussion | Paper Discussion | Paper Discussion
Abstract
ACPD
We use the 3-D FinROSE chemistry transport model (CTM) and ACE-FTS (Atmo-
spheric Chemistry Experiment Fourier Transform Spectrometer) observations to study 11, 1429–1455, 2011
the connection between atmospheric dynamics and NOx descent during early 2009 in
◦
5 the northern polar region. We force the model NOx at 80 km poleward of 60 N with Descent of odd
ACE-FTS observations and pare the model results with observations at lower nitrogen after sudden