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Reconciliation ofessential processparameters for anenhancedpredictability ofArctic stratosphericozone loss and itsclimate interactions(RECONCILE) Marc von HobeSlimane BekkiStephan Borrmann2013 год

Reconciliation of essential process parameters for an enhanced predictability of Arctic stratospheric ozone loss and its climate interactions (RECONCILE): activities and results
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Аннотация: Abstract. 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.
Год издания: 2013
Авторы: Marc von Hobe, Slimane Bekki, Stephan Borrmann, Francesco Cairo, Francesco D’Amato, G. Di Donfrancesco, Andreas Dörnbrack, A. Ebersoldt, Martin Ebert, Claudia Emde, I. Engel, Manfred Ern, W. Frey, S. Genco, Sabine Grießbach, Jens‐Uwe Grooß, T. Gulde, G. Günther, E. Hösen, Lars Hoffmann, V. Homonnai, C. R. Hoyle, I. S. A. Isaksen, D. R. Jackson, I. M. Jánosi, R. L. Jones, Konrad Kandler, Christoph Kalicinsky, A. Keil, Sergey Khaykin, Farahnaz Khosrawi, Rigel Kivi, J. Kuttippurath, Johannes C. Laube, F. Lefèvre, Ralph Lehmann, S. Ludmann, Beiping Luo, Marion Marchand, J. Meyer, Valentin Mitev, Sergej Molleker, Rolf Müller, H. Oelhaf, F. Olschewski, Yvan Orsolini, Thomas Peter, Klaus Pfeilsticker, C. Piesch, M. C. Pitts, L. R. Poole, Francis D. Pope, F. Ravegnani, Markus Rex, Martin Riese, Thomas Röckmann, B. Rognerud, A. Roiger, Christian Rolf, M. L. Santee, M. Scheibe, C. Schiller, Hans Schlager, Mario Siciliani de Cumis, N. Sitnikov, O. A. Søvde, Reinhold Spang, N. Spelten, Frøde Stordal, O. Sumińska-Ebersoldt, A. Ulanovski, Jörn Ungermann, Silvia Viciani, C. M. Volk, Markus vom Scheidt, Peter von der Gathen, K. A. Walker, Tobias Wegner, Ralf Weigel, Stephan Weinbruch, G. Wetzel, F. G. Wienhold, Ingo Wohltmann, W. Woiwode, Ian A. Young, V. Yushkov, B. Zobrist, F. Stroh
Издательство: Copernicus Publications
Источник: Atmospheric chemistry and physics
Ключевые слова: Atmospheric Ozone and Climate, Atmospheric chemistry and aerosols, Atmospheric and Environmental Gas Dynamics
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