Reconciliation of essential process parameters for an enhanced predictability of Arctic stratospheric ozone loss and its climate interactions : (RECONCILE) ; activities and results

  • 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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Author:Marc von HobeORCiDGND, Slimane Bekki, Stephan BorrmannORCiDGND, Francesco Cairo, Francesco D'Amato, Guido Di Donfrancesco, Andreas DörnbrackORCiD, Andreas Ebersoldt, Martin EbertGND, Claudia Emde, Ines Engel, Manfred ErnORCiD, Wiebke Frey, Silvia Genco, Sabine Griessbach, Jens-Uwe GrooßORCiDGND, Thomas Gulde, Gebhard GüntherORCiDGND, Elisabeth Hösen, Lars Hoffmann, Viktoria Homonnai, Christopher Robert Hoyle, Ivar S.A. Isaksen, David R. Jackson, Imre M. Jánosi, Rod L. Jones, Konrad KandlerORCiDGND, Christoph Kalicinsky, Andrea Keil, Sergey M. Khaykin, Farahnaz Khosrawi, Rigel Kivi, Jayan Kuttippurath, Johannes Christian LaubeORCiDGND, Franck Lefèvre, Ralph Lehmann, Sabrina Ludmann, Beiping P. Luo, Marion Marchand, Jessica Meyer, Valentin Mitev, Sergej Molleker, Rolf MüllerORCiD, Hermann Oelhaf, Friedhelm Olschewski, Yvan Orsolini, Thomas Peter, Klaus Pfeilsticker, Christof Piesch, Michael C. Pitts, Lamont R. Poole, Francis D. Pope, Fabrizio RavegnaniORCiD, Markus RexORCiDGND, Martin RieseORCiDGND, Thomas RöckmannORCiDGND, Bjørg Rognerud, Anke RoigerGND, Christian Rolf, Michelle L. Santee, Monika Scheibe, Cornelius SchillerGND, Hans Schlager, Matteo Siciliani de Cumis, Nikolay Sitnikov, Ole Amund Søvde, Reinhold SpangORCiD, Nicole Spelten, Frode Stordal, Olga Sumińska-Ebersoldt, Silvia Viciani, C.-Michael Volk, Marcel vom Scheidt, Alexey Ulanovski, Peter von der Gathen, Kaley A. WalkerORCiDGND, Tobias Wegner, Ralf Weigel, Stephan Weinbruch, Gerald Wetzel, Franck G. Wienhold, Ingo Wohltmann, Wolfgang Woiwode, Isla A. K. Young, Vladimir Yushkov, Bernhard Zobrist, Fred StrohORCiD
Parent Title (English):Atmospheric chemistry and physics
Publisher:European Geosciences Union
Place of publication:Katlenburg-Lindau
Document Type:Article
Date of Publication (online):2013/09/16
Date of first Publication:2013/09/16
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2013/10/02
Page Number:36
First Page:9233
Last Page:9268
© Author(s) 2013. This work is distributed under the Creative Commons Attribution 3.0 License.
Institutes:Geowissenschaften / Geographie / Geowissenschaften
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 55 Geowissenschaften, Geologie / 550 Geowissenschaften
Licence (German):License LogoCreative Commons - Namensnennung 3.0