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

Von Hobe, M., Bekki, S., Borrmann, S., Cairo, F., D'Amato, F., Di Donfrancesco, G., Dörnbrack, A., Ebersoldt, A., Ebert, M., Emde, C., Engel, I., Ern, M., Frey, W., Genco, S., Griessbach, S., Grooß, J.-U., Gulde, T., Günther, G., Hösen, E., Hoffmann, L., Homonnai, V., Hoyle, C.R., Isaksen, I.S.A., Jackson, D.R., Jánosi, I.M., Jones, R.L., Kandler, K., Kalicinsky, C., Keil, A., Khaykin, S.M., Khosrawi, F., Kivi, R., Kuttippurath, J., Laube, J.C., Lefèvre, F., Lehmann, R., Ludmann, S., Luo, B.P., Marchand, M., Meyer, J., Mitev, V., Molleker, S., Müller, R., Oelhaf, H., Olschewski, F., Orsolini, Y., Peter, T., Pfeilsticker, K., Piesch, C., Pitts, M.C., Poole, L.R., Pope, F.D., Ravegnani, F., Rex, M., Riese, M., Röckmann, T., Rognerud, B., Roiger, A., Rolf, C., Santee, M.L., Scheibe, M., Schiller, C., Schlager, H., Siciliani De Cumis, M., Sitnikov, N., Søvde, O.A., Spang, R., Spelten, N., Stordal, F., Sumiñska-Ebersoldt, O., Ulanovski, A., Ungermann, J., Viciani, S., Volk, C.M., Vom Scheidt, M., Von Der Gathen, P., Walker, K., Wegner, T., Weigel, R., Weinbruch, S., Wetzel, G., Wienhold, F.G., Wohltmann, I., Woiwode, W., Young, I.A.K., Yushkov, V., Zobrist, B. and Stroh, F. (2013) Reconciliation of essential process parameters for an enhanced predictability of Arctic stratospheric ozone loss and its climate interactions (RECONCILE):Activities and results. Atmospheric Chemistry and Physics, 13 (18). pp. 9233-9268. ISSN 1680-7316

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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.

Item Type: Article
Faculty \ School: Faculty of Science > School of Environmental Sciences
Faculty of Science
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Depositing User: Pure Connector
Date Deposited: 09 Jun 2014 21:10
Last Modified: 05 May 2020 23:49
URI: https://ueaeprints.uea.ac.uk/id/eprint/48059
DOI: 10.5194/acp-13-9233-2013

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