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| Titel |
Reconciliation of essential process parameters for an enhanced predictability of Arctic stratospheric ozone loss and its climate interactions (RECONCILE): activities and results |
| VerfasserIn |
M. Hobe, S. Bekki, S. Borrmann, F. Cairo, F. D'Amato, G. Donfrancesco, A. Dörnbrack, A. Ebersoldt, M. Ebert, C. Emde, I. Engel, M. Ern, W. Frey, S. Genco, S. Griessbach, J.-U. Grooß, T. Gulde, G. Günther, E. Hösen, L. Hoffmann, V. Homonnai, C. R. Hoyle, I. S. A. Isaksen, D. R. Jackson, I. M. Jánosi, R. L. Jones, K. Kandler, C. Kalicinsky, A. Keil, S. M. Khaykin, F. Khosrawi, R. Kivi, J. Kuttippurath, J. C. Laube, F. Lefèvre, R. Lehmann, S. Ludmann, B. P. Luo, M. Marchand, J. Meyer, V. Mitev, S. Molleker, R. Müller, H. Oelhaf, F. Olschewski, Y. Orsolini, T. Peter, K. Pfeilsticker, C. Piesch, M. C. Pitts, L. R. Poole, F. D. Pope, F. Ravegnani, M. Rex, M. Riese, T. Röckmann, B. Rognerud, A. Roiger, C. Rolf, M. L. Santee, M. Scheibe, C. Schiller, H. Schlager, M. Siciliani de Cumis, N. Sitnikov, O. A. Søvde, R. Spang, N. Spelten, F. Stordal, O. Sumińska-Ebersoldt, A. Ulanovski, J. Ungermann, S. Viciani, C. M. Volk, M. Scheidt, P. Gathen, K. Walker, T. Wegner, R. Weigel, S. Weinbruch, G. Wetzel, F. G. Wienhold, I. Wohltmann, W. Woiwode, I. A. K. Young, V. Yushkov, B. Zobrist, F. Stroh |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 13, no. 18 ; Nr. 13, no. 18 (2013-09-16), S.9233-9268 |
| Datensatznummer |
250085698
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| Publikation (Nr.) |
 copernicus.org/acp-13-9233-2013.pdf |
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| Zusammenfassung |
| The international research project
RECONCILE has addressed central questions regarding polar ozone depletion,
with the objective to quantify some of the most relevant yet still uncertain
physical and chemical processes and thereby improve prognostic modelling
capabilities to realistically predict the response of the ozone layer to
climate change. This overview paper outlines the scope and the general
approach of RECONCILE, and it provides a summary of observations and modelling in
2010 and 2011 that have generated an in many respects unprecedented dataset
to study processes in the Arctic winter stratosphere. Principally, it
summarises important outcomes of RECONCILE including (i) better constraints
and enhanced consistency on the set of parameters governing catalytic ozone
destruction cycles, (ii) a better understanding of the role of cold binary
aerosols in heterogeneous chlorine activation,
(iii) an improved scheme of
polar stratospheric cloud (PSC) processes that includes heterogeneous
nucleation of nitric acid trihydrate (NAT) and ice on non-volatile background
aerosol leading to better model parameterisations with respect to
denitrification, and (iv) long transient simulations with a chemistry-climate
model (CCM) updated based on the results of RECONCILE that better reproduce
past ozone trends in Antarctica and are deemed to produce more reliable
predictions of future ozone trends. The process studies and the global
simulations conducted in RECONCILE show that in the Arctic, ozone depletion
uncertainties in the chemical and microphysical processes are now clearly
smaller than the sensitivity to dynamic variability. |
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