ACP Atmospheric Chemistry and Physics ACP 1680-7324 Copernicus GmbH Göttingen, Germany 10.5194/acp-13-1809-2013 Chemical ozone losses in Arctic and Antarctic polar winter/spring season derived from SCIAMACHY limb measurements 2002–2009 Sonkaew T. 1 2 von Savigny C. 1 4 Eichmann K.-U. 1 Weber M. 1 Rozanov A. 1 Bovensmann H. 1 Burrows J. P. 1 Grooß J.-U. 3 Institute of Environmental Physics, University of Bremen, Otto-Hahn-Allee 1, 28359 Bremen, Germany Science Faculty, Lampang Rajabhat University, 119 Lampang-Maeta Rd., Lampang, 52100, Thailand Institute for Energy and Climate Research – Stratosphere (IEK-7), Forschungszentrum Jülich, Jülich, Germany now at: Institute of Physics, Ernst-Moritz-Arndt-University of Greifswald, Felix-Hausdorff-Str. 6, 17489 Greifswald, Germany 19 02 2013 13 4 1809 1835 This is an open-access article ditributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. This article is available from http://www.atmos-chem-phys.net/13/1809/2013/acp-13-1809-2013.html The full text article is available as a PDF file from http://www.atmos-chem-phys.net/13/1809/2013/acp-13-1809-2013.pdf

Stratospheric ozone profiles are retrieved for the period 2002–2009 from SCIAMACHY measurements of limb-scattered solar radiation in the Hartley and Chappuis absorption bands of ozone. This data set is used to determine the chemical ozone losses in both the Arctic and Antarctic polar vortices by averaging the ozone in the vortex at a given potential temperature. The chemical ozone losses at isentropic levels between 450 K and 600 K are derived from the difference between observed ozone abundances and the ozone modelled taking diabatic cooling into account, but no chemical ozone loss. Chemical ozone losses of up to 30–40% between mid-January and the end of March inside the Arctic polar vortex are reported. Strong inter-annual variability of the Arctic ozone loss is observed, with the cold winters 2004/2005 and 2006/2007 showing chemical ozone losses inside the polar vortex at 475 K, where 1.7 ppmv and 1.4 ppmv of ozone were removed, respectively, over the period from 22 January to beginning of April and 0.9 ppmv and 1.2 ppmv, respectively, during February. For the winters of 2007/2008 and 2002/2003, ozone losses of about 0.8 ppmv and 0.4 ppmv, respectively are estimated at the 475 K isentropic level for the period from 22 January to beginning of April. Essentially no ozone losses were diagnosed for the relatively warm winters of 2003/2004 and 2005/2006. The maximum ozone loss in the SCIAMACHY data set was found in 2007 at the 600 K level and amounted to about 2.1 ppmv for the period between 22 January and the end of April. Enhanced losses close to this altitude were found in all investigated Arctic springs, in contrast to Antarctic spring. The inter-annual variability of ozone losses and PSC occurrence rates observed during Arctic spring is consistent with the known QBO effects on the Arctic polar vortex, with exception of the unusual Arctic winter 2008/2009. <br><br> The maximum total ozone mass loss of about 25 million tons was found in the cold Arctic winter of 2004/2005 inside the polar vortex between the 450 K and 600 K isentropic levels from mid-January until the middle of March. <br><br> The Antarctic vortex averaged ozone loss as well as the size of the polar vortex do not vary much from year to year. The total ozone mass loss inside the Antarctic polar vortex between the 450 K and 600 K isentropic levels is about 50–60 million tons and the vortex volume for this altitude range varies between about 150 and 300 km<sup>3</sup> for the period between mid-August and mid-November of every year studied, except for 2002. In 2002 a mid-winter major stratospheric warming occurred in the second half of September and the ozone mass loss was only about half of the value in the other years. However, inside the polar vortex we find chemical ozone losses at the 475 K isentropic level that are similar to those in all other years studied. At this isentropic level ozone losses of 70–90% between mid-August and mid-November or about 2.5 ppmv are observed every year. At isentropic levels above 500 K the chemical ozone losses were found to be larger in 2002 than in all other years studied. <br><br> Comparisons of the vertical variation of ozone losses derived from SCIAMACHY observations with several independent techniques for the Arctic winter 2004/2005 show that the SCIAMACHY results fall in the middle of the range of previously published results for this winter. For other winters in both hemispheres – for which comparisons with other studies were possible – the SCIAMACHY results are consistent with the range of previously published results.

 References Baldwin, M. P., Gray, L. J., Dunkerton, T. J., Hamilton, K., Haynes, P H., Randel, W J., Holton, J R., Alexander, M J., Hirota, I., Horinouchi, T., Jones, D B A., Kinnersley, J S., Marquardt, C., Sato, K., and Takahashi, M.: The quasibiennial oscillation, Rev. Geophys., 39, 179–229, 2001. Baldwin, M., P., Hirooka, T., O'Neill, A., and Yoden, S.: Major stratospheric warming in the southern hemisphere in 2002: Dynamical aspects of the ozone hole split, SPARC newsletter, No. 20, SPARC Office, Toronto, ON, Canada, 24–26, 2003. Becker, G., Müller, R., McKenna, D. S., Rex, M., Carslaw, K., and Oelhaf, H.: Ozone loss rates in the Arctic stratosphere in the winter 1994/1995: Model simulations underestimate results of the Match analysis, J. Geophys. Res., 105, 15175–15184, 2000. Bodeker, G. E., Shiona, H., and Eskes, H.: Indicators of Antarctic ozone depletion, Atmos. Chem. Phys., 5, 2603–2615, http://dx.doi.org/10.5194/acp-5-2603-2005doi:10.5194/acp-5-2603-2005, 2005. Bovensmann, H., Burrows, J. P., Buchwitz, M., Frerick, J., Noël, S., Rozanov, V. V., Chance, K. V., and Goede, A. P. H.: SCIAMACHY: Mission objectives and measurement modes, J. Atmos. Sci., 56, 127–150, 1999. Braathen, G. O., Rummkainen, M., Kyrö, E., Schmidt, U., Dahlback, A., Jorgensen, T. S., Fabian, R., Rudagov, V. V., Gil, M., and Borchers, R.: Temporal development of ozone within the Arctic vortex during the winter of 1991/1992, Geophys. Res. Lett., 21, 1407–1410, 1994. Brewer, A. W.: Evidence for a world circulation provided by the measurements of helium and water vapour distribution in the stratosphere, Q. J. Roy. Meteor. Soc., 75, 351–363, http://dx.doi.org/10.1002/qj.49707532603doi:10.1002/qj.49707532603, 1949. Burrows, J. P., Hölzle, E., Goede, A. P. H., Visser, H., and Fricke, W.: SCIAMACHY – Scanning Imaging Absorption Spectrometer for Atmospheric Chartography, Acta Astronautica, 35, 7, 445–451, 1995. Camp, C. D. and Tung, K.-K.: The influence of the solar cycle and QBO on the late-winter stratospheric polar vortex, J. Atmos. Sci, 64, 1267–1283, 2007. Chen, H. Y., Lien, C. Y., Lin, W. Y., Lee, Y. T., and Lin, J. J.: UV absorption cross sections of ClOOCl are consistent with ozone degradation models, Science, 324, 781–784, http://dx.doi.org/10.1126/science.1171305doi:10.1126/science.1171305, 2009. Chipperfield, M. P., Lee, A. M., and Pyle, J. A.: Model calculations of ozone depletion in the Arctic polar vortex for 1991/92 to 1994/95, Geophys. Res. Lett., 23, 559–562, 1996. Christensen, T., Knudsen, B. M., Streibel, M., Andersen, S. B., Benesova, A., Braathen, G., Claude, H., Davies, J., De Backer, H., Dier, H., Dorokhov, V., Gerding, M., Gil, M., Henchoz, B., Kelder, H., Kivi, R., Kyrö, E., Litynska, Z., Moore, D., Peters, G., Skrivankova, P., Stübi, R., Turunen, T., Vaughan, G., Viatte, P., Vik, A. F., von der Gathen, P., and Zaitcev, I.: Vortex-averaged Arctic ozone depletion in the winter 2002/2003, Atmos. Chem. Phys., 5, 131–138, http://dx.doi.org/10.5194/acp-5-131-2005doi:10.5194/acp-5-131-2005, 2005. National Weather Service, Climate Prediction Center: Stratosphere: Global temperature time series, available at: http://www.cpc.noaa.gov/products/stratosphere/temperature/, (last access: 2 February 2013), 2009. Deniel, C., Bevilaqua, R. M., Pommereau, J. P., and Lefèvre, F.: Arctic chemical ozone depletion during the 1994/1995 winter deduced from POAM II satellite observations and the REPROBUS three-dimensional model, J. Geophys. Res., 103, 19231–19244, 1998. Dobson, G M B., Kimball, H. H., and Kidson, E.: Observations of the amount of ozone in the Earth's atmosphere, and its relation to other geophysical conditions. Part IV, Proc. R. Soc. Lond. A, 129, 411–433, 1930. Dufour, G., Nassar, R., Boone, C. D., Skelton, R., Walker, K. A., Bernath, P. F., Rinsland, C. P., Semeniuk, K., Jin, J. J., McConnell, J. C., and Manney, G. L.: Partitioning between the inorganic chlorine reservoirs HCl and ClONO<sub>2</sub> during the Arctic winter 2005 from the ACE-FTS, Atmos. Chem. Phys., 6, 2355–2366, http://dx.doi.org/10.5194/acp-6-2355-2006doi:10.5194/acp-6-2355-2006, 2006. Eichmann, K.-U., Weber, M., Bramstedt, K., and Burrows, J. P.: Ozone depletion in the NH winter/spring 1999/2000 as measured by GOME on ERS-2, J. Geophys. Res., 107, 8280, http://dx.doi.org/10.1029/2001JD001148doi:10.1029/2001JD001148, 2002. El Amraoui, L., Semane, N., Peuch, V.-H., and Santee M. L.: Investigation of dynamical processes in the polar stratospheric vortex during the unusually cold winter 2004/2005, Geophys. Res. Lett., 35, L03803, http://dx.doi.org/10.1029/2007GL031251doi:10.1029/2007GL031251, 2008. EU: European research in the stratosphere 1996-2000, chap. 3.5, 112–117, EUR 19867, Brussels, 2001. Farman, J. C., Gardiner, B. G., and Shanklin, J. D.: Large losses of total ozone in Antarctica reveal seasonal ClOx/NOx interaction, Nature, 315, 207–210, 1985. Feng, W., Chipperfield, M. P., Davies, S., von der Gathen, P., Kyrö, E., Volk, C. M., Ulanovsky, A., and Belyaev, G.: Large chemical ozone loss in 2004/2005 Arctic winter/spring, Geophys. Res. Lett., 34, L09803, http://dx.doi.org/10.1029/2006GL029098doi:10.1029/2006GL029098, 2007 Feng, W., Chipperfield, M. P., Davies, S., Sen, B., Toon, G., Blavier, J. F., Webster, C. R., Volk, C. M., Ulanovsky, A., Ravegnani, F., von der Gathen, P., Jost, H., Richard, E. C., and Claude, H.: Three-dimensional model study of the Arctic ozone loss in 2002/2003 and comparison with 1999/2000 and 2003/2004, Atmos. Chem. Phys., 5, 139–152, http://dx.doi.org/10.5194/acp-5-139-2005doi:10.5194/acp-5-139-2005, 2005. Feng, W., Chipperfield, M. P., Davies, S., Mann, G. W., Carslaw, K. S., Dhomse, S., Harvey, L., Randall, C., and Santee, M. L.: Modelling the effect of denitrification on polar ozone depletion for Arctic winter 2004/2005, Atmos. Chem. Phys., 11, 6559–6573, http://dx.doi.org/10.5194/acp-11-6559-2011doi:10.5194/acp-11-6559-2011, 2011. Frieß, U., Kreher, K., Johnston, P. V., and Platt, U.: Ground-Based DOAS Measurements of Stratospheric Trace Gases at Two Antarctic Stations during the 2002 Ozone Hole Period, J. Atmos. Sci., 62, 765–777, 2005. Fussen, D. and López-Puertas, M: Summary on upper atmosphere, Atmospheric Science Conference, Barcelona, Spain, 7–11 September, 2009. Geer, A. J., Lahoz, W. A., Jackson, D. R., Cariolle, D., and McCormack, J. P.: Evaluation of linear ozone photochemistry parametrizations in a stratosphere-troposphere data assimilation system, Atmos. Chem. Phys., 7, 939–959, http://dx.doi.org/10.5194/acp-7-939-2007doi:10.5194/acp-7-939-2007, 2007. Goutail, F., Harris, N. R. P., Kilbane-Dawe, I., and Amanatidis, G. T.: Ozone loss: the global picture, Proc. European Ozone Meeting, Schliersee, Germany, 1997. Goutail, F., Pommereau, J.-P., Lefèvre, F., van Roozendael, M., Andersen, S. B., Kåstad Høiskar, B.-A., Dorokhov, V., Kyrö, E., Chipperfield, M. P., and Feng, W.: Early unusual ozone loss during the Arctic winter 2002/2003 compared to other winters, Atmos. Chem. Phys., 5, 665–677, http://dx.doi.org/10.5194/acp-5-665-2005doi:10.5194/acp-5-665-2005, 2005. Grooß, J.-U. and Müller, R.: The impact of mid-latitude intrusions into the polar vortex on ozone loss estimates, Atmos. Chem. Phys., 3, 395–402, http://dx.doi.org/10.5194/acp-3-395-2003doi:10.5194/acp-3-395-2003, 2003. Grooß, J.-U., Günther, G., Müller, R., Konopka, P., Bausch, S., Schlager, H., Voigt, C., Volk, C. M., and Toon, G. C.: Simulation of denitrification and ozone loss for the Arctic winter 2002/2003, Atmos. Chem. Phys., 5, 1437–1448, http://dx.doi.org/10.5194/acp-5-1437-2005doi:10.5194/acp-5-1437-2005, 2005. Grooß, J.-U. and Müller, R.: Simulation of ozone loss in Arctic winter 2004/2005, Geophys. Res. Lett., 34, L05804, http://dx.doi.org/10.1029/2006GL028901doi:10.1029/2006GL028901, 2007. Grooß, J.-U., Müller, R., Konopka, P., Steinhorst, H.-M., Engel, A., Möbius, T., and Volk, C. M.: The impact of transport across the polar vortex edge on Match ozone loss estimates, Atmos. Chem. Phys., 8, 565–578, http://dx.doi.org/10.5194/acp-8-565-2008doi:10.5194/acp-8-565-2008, 2008. Guirlet, M., Chipperfield, M. P., Pyle, J. A., Goutail, F., Pommereau, J. P., and Kyrö, E.: Modeled Arctic ozone depletion in winter 1997/1998 and comparison with previous winters, J. Geophys. Res., 105, 22185–22200, 2000. Harris, N. R. P., Rex, M., Goutail, F., Knudsen, B. M., Manney, G. L., Müller, R., and von der Gathen, P.: Comparison of empirically derived ozone losses in the Arctic vortex, J. Geophys. Res., 107, 8264, http://dx.doi.org/10.1029/2001JD000482doi:10.1029/2001JD000482, 2002. Haynes, P H., Marks, C J., McIntyre, M E., Shepherd, T G., and Shine, K P.: On the "downward control" of extratropical diabatic circulations by eddy-induced mean zonal forces, J. Atmos. Sci., 48, 651–678, 1991. Holton, J. R. and Tan, H. C.: The influence of the equatorial QBO in the global circulation at 50mb, J. Atmos. Sci., 37, 2200–2208, 1980. Holton J. R., Haynes, P. H., McIntyre, M. E., Douglass, A. R., Rood, R. B., and Pfister, L.: Stratosphere-troposphere exchange, Rev. Geophys., 33, 403–439, 1995. Holton, J R. and Alexander, M J.: The role of waves in the transport circulation of the middle atmosphere, in: Atmospheric Sciences Across the Stratopause, edited by: Siskind, D. E., Eckermann, S. D., and Summers, M. E., Geophysical Monograph Series No. 123, AGU, 21–35, 2000. Hoogen, R., Rozanov, V. V., and Burrows, J. P.: Ozone profiles from GOME satellite data: Algorithm description and first validation, J. Geophys. Res., 104, 8263–8280, 1999. Hoppel, K., Bevilacqua, R., Allen, D., Nedoluha, G., and Randall C.: POAM III observations of the anomalous 2002 Antarctic ozone hole, Geophys. Res. Lett., 30, 1394, http://dx.doi.org/10.1029/2003GL016899doi:10.1029/2003GL016899, 2003. Hoppel, K. W., Baker, N. L., Coy, L., Eckermann, S. D., McCormack, J. P., Nedoluha, G. E., and Siskind, D. E.: Assimilation of stratospheric and mesospheric temperatures from MLS and SABER into a global NWP model, Atmos. Chem. Phys., 8, 6103-6116, http://dx.doi.org/10.5194/acp-8-6103-2008doi:10.5194/acp-8-6103-2008, 2008. IPCC/TEAP: Special report on safeguarding the ozone layer and the global climate system, Cambridge University Press, Cambridge, United Kingdom, New York, USA, 2005. Jackson, D. R. and Orsolini, Y. J.: Estimation of Arctic ozone loss in winter 2004/05 based on assimilation of EOS MLS and SBUV/2 observations, Q. J. Roy. Meteor. Soc., 134, 1833–1841, 2008. Jin, J. J., Semeniuk, K., Manney, G.L., Jonsson, A. I., Beagley, S. R., McConnell, J. C., Dufour, G., Nassar, R., Walker, K. A., Boone, C. D., Bernath, P. F, Rinsland, C. P., Urban, J., Murtagh, D., and Petelina, S. V.: Severe Arctic ozone loss in the winter 2004/2005: observations from ACE-FTS, Geophys. Res. Lett., 33, L15801, http://dx.doi.org/10.1029/2006GL026752doi:10.1029/2006GL026752, 2006. Jones, A., Urban, J., Murtagh, D. P., Eriksson, P., Brohede, S., Haley, C., Degenstein, D., Bourassa, A., von Savigny, C., Sonkaew, T., Rozanov, A., Bovensmann, H., and Burrows, J.: Evolution of stratospheric ozone and water vapour time series studied with satellite measurements, Atmos. Chem. Phys., 9, 6055–6075, http://dx.doi.org/10.5194/acp-9-6055-2009doi:10.5194/acp-9-6055-2009, 2009. Jucks, K. W. and Salawitch, R. J.: Future changes in upper stratospheric ozone, in: atmospheric science across the stratopause, edited by: Siskind, D. E., Eckermann, S. D., and Summers, M. E., Geophys. Mono., 123, AGU, 241–255, 2000. Knudsen, B. M., Larsen, N., Mikkelsen, I. S., Morcrette, J.-J., Braathen, G. O., Kyrö, E., Fast, H., Gernandt, H., Kanzawa, H., Nakane, H., Dorokhov, V., Yushkov, V., Hansen, G., Gil, M., and Shearman, R. J.: Ozone depletion in and below the Arctic vortex for 1997, Geophys. Res. Lett., 25, 627–630, 1998. Konopka, P., Grooß, J.-U., Hoppel, K W., Steinhorst, H.-M., and Müller, R.: Mixing and chemical ozone loss during and after the Antarctic polar vortex major warming in September 2002, J. Atmos. Sci., 62, 848–859, http://dx.doi.org/10.1175/JAS-3329.1doi:10.1175/JAS-3329.1, 2005. Konopka, P., Engel, A., Funke, B., Müller, R., Grooß, J.-U., Günther, G., Wetter, T., Stiller, G., von Clarmann, T., Glatthor, N., Oelhaf, H., Wetzel, G., López-Puertas, M., Pirre, M., Huret, N., and Riese, M.: Ozone loss driven by nitrogen oxides and triggered by stratospheric warmings can outweigh the effect of halogens, J. Geophys. Res., 112, D5105, http://dx.doi.org/10.1029/2006JD007064doi:10.1029/2006JD007064, 2007. Kushner, P. L. and Polvani, L. M.: A very large, spontaneous stratospheric sudden warming in a simple AGCM: A prototype for the southern hemisphere warming of 2002?, J. Atmos. Sci., 62, 890–897, 2004. Kuttippurath, J., Godin-Beekmann, S., Lefévre, F., and Goutail, F.: Spatial, temporal, and vertical variability of polar stratospheric ozone loss in the Arctic winters 2004/2005–2009/2010, Atmos. Chem. Phys., 10, 9915–9930, http://dx.doi.org/10.5194/acp-10-9915-2010doi:10.5194/acp-10-9915-2010, 2010a. Kuttippurath, J., Goutail, F., Pommereau, J.-P., Lefévre, F., Roscoe, H. K., Pazmino, A., Feng, W., Chipperfield, M. P., and Godin-Beekmann, S.: Estimation of Antarctic ozone loss from ground-based total column measurements, Atmos. Chem. Phys., 10, 6569–6581, http://dx.doi.org/10.5194/acp-10-6569-2010doi:10.5194/acp-10-6569-2010, 2010b. Labitzke, K.: Sunspots, the QBO, and the stratospheric temperature in the north polar-region, Geophys. Res. Lett., 14, 535–537, 1987. Labitzke, K. and van Loon, H.: Associations between the 11-year solar-cycle, the QBO and the atmosphere. Part I: The troposphere and stratosphere in the northern hemisphere in winter, J. Atmos. Terr. Phys., 50, 197–206, 1988. Labitzke, K. and Kunze, M.: On the remarkable Arctic winter in 2008/2009, J. Geophys. Res., 114, D00I02, http://dx.doi.org/10.1029/2009JD012273doi:10.1029/2009JD012273, 2009. Lait, L. R.: An alternative form for potential vorticity, J. Atmos. Sci., 51, 1754–1759, 1994. Manney, G. L., Krüger, K., Sabutis, J. L., Sena, S. A., and Pawson, S.: The remarkable 2003–2004 winter and other recent warm winters in the Arctic stratosphere since the late 1990s, J. Geophys. Res., 110, D04107, http://dx.doi.org/10.1029/2004JD005367doi:10.1029/2004JD005367, 2005a. Manney, G L., Sabutis, J L., Allen, D R., Lahoz, W A., Scaife, A A., Randall, C E., Pawson, S., Naujokat, B., and Swinbank, R.: Simulations of dynamics and transport during the September 2002 Antarctic major warming, J. Geophys. Res., 62, 690–707, http://dx.doi.org/10.1175/JAS-3313.1doi:10.1175/JAS-3313.1, 2005b. Manney,G L., Santee, M. L., Froidevaux, L., Hoppel, K., Livesey, N. J., and Waters, J. W.: EOS MLS observations of ozone loss in the 2004–2005 Arctic winter, Geophys. Res. Lett., 33, L04802, http://dx.doi.org/10.1029/2005GL024494doi:10.1029/2005GL024494, 2006. Manney, G. L., Schwartz, M. J., Krüger, K., Santee, M. L., Pawson, S., Lee, J. N., Daffer, W. H., Fuller, R. A., and Livesey, J.: Aura Microwave Limb Sounder Observations of dynamics and transport during the record-breaking 2009 Arctic stratospheric major warming, Geophys. Res. Lett., 36, L12815, http://dx.doi.org/10.1029/2009GL038586doi:10.1029/2009GL038586, 2009. Müller, R., and Günther, G.: A generalized form of Lait's modified potential vorticity, J. Atmos. Sci., 60, 2229–2237, 2003. Nash, E. R., Newman, P. A., Rosenfield, J. E., and Schoeberl, M. R.: An objective determination of the polar vortex using Ertel's potential vorticity, J. Geophys. Res., 101, 9471–9478, 1996. Newchurch, M. J., Yang, E.-S., Cunnold, D. M., Reinsel, G. C., Zawodny, J. M., and Russell III, J. M.: Evidence for slowdown in stratospheric ozone loss: First stage of ozone recovery, J. Geophys. Res., 108, 4507, http://dx.doi.org/10.1029/2003JD003471doi:10.1029/2003JD003471, 2003. Newman, P. A. and Nash, E. R.: The unusual southern hemisphere stratosphere winter of 2002, J. Atmos. Sci., 62, 614–628, 2005. Randel, W. J., Wu, F., Russell III, J. M., Roche, A., and Waters, J. W.: Seasonal cycles and QBO variations in stratospheric CH<sub>4</sub> and H<sub>2</sub>O observed in UARS HALOE data, J. Atmos. Sci., 55, 163–185, 1998. Remsberg, E E., Marshall, B T., Garcia-Comas, M., Krueger, D., Lingenfelser, G S., Martin-Torres, J., Mlynczak, M G., Russell, J M., Smith, A K., Zhao, Y., Brown, C., Gordley, L L., Lopez-Gonzalez, M J., Lopez-Puertas, M., She, C.-Y., Taylor, M J., and Thompson, R E.: Assessment of the quality of the Version 1.07 temperature-versus-pressure profiles of the middle atmosphere from TIMED/SABER, J. Geophys. Res.-Atmos., 113, D17101, http://dx.doi.org/10.1029/2008JD010013doi:10.1029/2008JD010013, 2008. Rex, M., von der Gathen, P., Braathen, G. O., Harris, N. R. P., Reimer, E., Beck, A., Alfier, R., Krüger-Carstensen, R., Chipperfield, M., De Backer, H., Balis, D., O'Connor, F., Dier, H., Dorokhov, V., Fast, H., Gamma, A., Gil, M., Kyrö, E., Litynska, Z., Mikkelsen, I. S., Molyneux, M., Murphy, G., Reid, S. J., Rummukainen, M., and Zerefos, D.: Chemical ozone loss in the Arctic winter 1994/1995 as determined by the Match technique, J. Atmos. Chem., 32, 35–59, 1999. Rex, M., Salawitch, R. J., Harris, N. R. P., von der Gathen, P., Braathen, G. O., Schulz, A., Deckelmann, H., Chipperfield, M., Sinnhuber, B.-M., Reimer, E., Alfier, R., Bevilacqua, R., Hoppel, K., Fromm, M., Lumpe, J., Küllmann, H., Kleinböhl, A., Bremer, H., von König, M., Künzi, K., Toohey, D., Vömel, H., Richard, E., Aikin, K., Jost, H., Greenblatt, J. B., Loewenstein, M., Podolske, J. R., Webster, C. R., Flesch, G. J., Scott, D. C., Herman, R. L., Elkins, J. W., Ray, E. A., Moore, F. L., Hurst, D. F., Romashkin, P., Toon, G. C., Sen, B., Margitan, J. J., Wennberg, P., Neuber, R., Allart, M., Bojkov, B. R., Claude, H., Davies, J., Davies, W., De Backer, H., Dier, H., Dorokhov, V., Fast, H., Kondo, Y., Kyrö, E., Litynska, Z., Mikkelsen, I. S., Molyneux, M. J., Moran, E., Nagai, T., Nakane, H., Parrondo, C., Ravegnani, F., Skrivankova, P., Viatte, P., and Yushkov, V.: Chemical depletion of Arctic ozone in winter 1999/2000, J. Geophys. Res., 107, 8276, http://dx.doi.org/10.1029/2001JD000533doi:10.1029/2001JD000533, 2002. Rex, M., Salawitch, R. J., Santee, M. L., Waters, J. W., Hoppel, K., and Bevilaqua, R.: On the unexplained stratospheric ozone losses during cold Arctic Januaries, Geophys. Res. Lett., 30, 1008, http://dx.doi.org/10.1029/2002GL016008doi:10.1029/2002GL016008, 2003. Rex, M., Salawitch, R. J., von der Gathen, P., Harris, N. R. P., Chipperfield, M. P., and Naujokat, B.: Arctic ozone loss and climate change, Geophys. Res. Lett., 31, L04116, http://dx.doi.org/10.1029/2003GL018844doi:10.1029/2003GL018844, 2004. Rex, M., Salawitch, R J., Deckelmann, H., von der Gathen, P., Harris, N R P., Chipperfield, M P., Naujokat, B., Reimer, E., Allaart, M., Andersen, S B., Bevilacqua, R., Braathen, G O., Claude, H., Davies, J., De Backer, H., Dier, H., Dorokhov, V., Fast, H., Gerding, M., Godin-Beekmann, S., Hoppel, K., Johnson, B., Kyrö, E., Litynska, Z., Moore, D., Nakane, H., Parrondo, M C., Risley, A D., Skrivankova, P., Stübi, R., Viatte, P., Yushkov, V., and Zerefos, C.: Arctic winter 2005: Implications for stratospheric ozone loss and climate change, Geophys. Res. Lett., 33, L23808, http://dx.doi.org/10.1029/2006GL026731doi:10.1029/2006GL026731, 2006. Ricaud, P., Lefèvre, F., Berthet, G., Murtagh, D., Llewellyn, E J., Mégie, G., Kyrölä, E., Leppelmeier, G W., Auvinen, H., Boone, C., Brohede, S., Degenstein, D A., de La Noë, J., Dupuy, E., El Amraoui, L., Eriksson, P., Evans, W F J., Frisk, U., Gattinger, R L., Girod, F., Haley, C S., Hassinen, S., Hauchecorne, A., Jimenez, C., Kyrö, E., Lautié, N., Le Flochmoën, E., Lloyd, N D., McConnell, J C., McDade, I C., Nordh, L., Olberg, M., Pazmino, A., Petelina, S V., Sandqvist, A., Seppälä, A., Sioris, C E., Solheim, B H., Stegman, J., Strong, K., Taalas, P. Urban, J., von Savigny, C., von Scheele, F., and Witt, G.: Polar vortex evolution during the 2002 Antarctic major warming as observed by the Odin satellite, J. Geophys. Res., 110, D05302, http://dx.doi.org/10.1029/2004JD005018doi:10.1029/2004JD005018, 2005. Richter, A., Wittrock, F., Weber, M., Beirle, S., Kühl, S., Platt, U., Wagner, T., Wilms-Grabe, W., and Burrows, J P.: GOME Observations of Stratospheric Trace Gas Distributions during the Splitting Vortex Event in the Antarctic Winter of 2002. Part I: Measurements, J. Atmos. Sci., 62, 778–785, http://dx.doi.org/10.1175/JAS-3325.1doi:10.1175/JAS-3325.1, 2005. Rosenlof, K. H. and Holton, J. R.: Estimates of the stratospheric residual circulation using the downward control principle, J. Geophys. Res., 98, 10465–10479, 1993. Rosenlof, K. H.: Seasonal cycle of the residual mean meridional circulation in the stratosphere, J. Geophys. Res., 100, 5173–5191, 1995. Rösevall, J. D., Murtagh, D. P., and Urban, J.: Ozone depletion in the 2006/2007 Arctic winter, Geophys. Res. Lett., 34, L21809, http://dx.doi.org/10.1029/2007GL030620doi:10.1029/2007GL030620, 2007a. Rösevall, J. D., Murtagh, D. P., Urban, J., and Jones, A. K.: A study of polar ozone depletion based on sequential assimilation of satellite data from the ENVISAT/MIPAS and Odin/SMR instruments, Atmos. Chem. Phys., 7, 899–911, http://dx.doi.org/10.5194/acp-7-899-2007doi:10.5194/acp-7-899-2007, 2007b. Rösevall, J D., Murtagh, D P., Urban, J., Feng, W., Eriksson, P., and Brohede, S.: A study of ozone depletion in the 2004/2005 Arctic winter based on data from Odin/SMR and Aura/MLS, J. Geophys. Res., 113, D13301, http://dx.doi.org/10.1029/2007JD009560doi:10.1029/2007JD009560, 2008. Rozanov, A., Rozanov, V., Buchwitz, M., Kokhanovsky, A., and Burrows, J. P.: SCIATRAN 2.0 – A new radiative transfer model for geophysical applications in the 175–2400 nm spectral region, Adv. Space Res., 36, 1015–1019, 2005. Rozanov, A.: SCIATRAN 2.X: Radiative transfer model and retrieval software package, available at: http://www.iup.physik.uni-bremen.de/sciatran, (last access: 2 February 2013), 2008. Sathishkumar, S., Sridharan, S., and Jocobi, Ch.: Dynamical response of low-latitude middle atmosphere to major sudden stratospheric warming events, J. Atmos. Sol.-Terr. Phys., 71, 857–865, 2009. Shi, Q., Jayne, J. T., Kolb, C. E., Worsnop, D. R., and Davidovits, P:, Kinetic model for reaction of ClONO<sub>2</sub> with H<sub>2</sub>O and HCl and HOCl with HCl in sulfuric acid solutions, J. Geophys. Res., 106, 4259–24274, 2001. Shine, K. P.: On the cause of the relative greenhouse strength of gases such as the halocarbons, J. Atmos. Sci., 48, 1513–1518, 1991. Singleton, C. S., Randall, C. E., Chipperfield, M. P., Davies, S., Feng, W., Bevilacqua, R. M., Hoppel, K. W., Fromm, M. D., Manney, G. L., and Harvey, V. L.: 2002–2003 Arctic ozone loss deduced from POAM III satellite observations and the SLIMCAT chemical transport model, Atmos. Chem. Phys., 5, 597–609, http://dx.doi.org/10.5194/acp-5-597-2005doi:10.5194/acp-5-597-2005, 2005. Singleton, C. S., Randall, C. E., Harvey, V. L., Chipperfield, M. P., Feng, W., Manney, G. L., Froidevaux, L., Boone, C. D., Bernath, P. F., Walker, K. A., McElroy, C. T. and Hoppel, K. W.: Quantifying Arctic ozone loss during the 2004-2005 winter using satellite observations and a chemical transport model, J. Geophys. Res.-Atmos., 112, D7304, http://dx.doi.org/10.1029/2006JD007463doi:10.1029/2006JD007463, 2007. Sinnhuber, B.-M., Langer, J., Klein, U., Raffalski, U., Künzi, K., and Schrems, O.:, Ground based millimeter-wave observations of Arctic ozone depletion during winter and spring of 1996/97, Geophys. Res. Lett., 25, 3327–3330, 1998. Siskind, D. E., Froidevaux, L., Russell, J. M., and Lean, J.: Implications of upper stratospheric trace constituent changes observed by HALOE for O<sub>3</sub> and ClO from 1992 to 1995, Geophys. Res. Lett., 25, 3513–3516, 1998. Solomon, S.: Stratospheric ozone depletion: A review of concepts and history, Rev. Geophys., 37, 275–316, 1999. Solomon S., Portmann, R. W., Sasaki, T., Hofmann, D. J., and Thompson, D. W. J.: Four decades of ozonesonde measurements over Antarctica, J. Geophys. Res., 110, D21311, http://dx.doi.org/10.1029/2005JD005917doi:10.1029/2005JD005917, 2005. % %Solomon, S., Portmann, R. W., and Thompson, D. W.: %Contrasts between Antarctic and Arctic %ozone depletion, PNAS, 104, 445–449, 2006. Solomon, S., Portmann, R. W., and Thompson, D. W. J.: Contrasts between Antarctic and Arctic ozone depletion, P. Natl. Acad. Sci., 104, 445–449, 2007. Sonkaew, T., Rozanov, V. V., von Savigny, C., Rozanov, A., Bovensmann, H., and Burrows, J. P.: Cloud sensitivity studies for stratospheric and lower mesospheric ozone profile retrievals from measurements of limb-scattered solar radiation, Atmos. Meas. Tech., 2, 653–678, http://dx.doi.org/10.5194/amt-2-653-2009doi:10.5194/amt-2-653-2009, 2009. SPARC Report on the Evaluation of Chemistry-Climate Models, V. Eyring, T. G. Shepherd, D. W. Waugh (Eds.), SPARC Report No. 5, WCRP-132, WMO/TD-No. 1526, 2010. Steinbrecht, W., Claude, H., Schönenborn, F., McDermid, I. S., Leblanc, T., Godin, S., Keckhut, P., van Gijsel, A., Swart, D. P. J., Bodeker, G., Parrish, A., Boyd, I., Kämpfer, N., Hocke, C., Stolarski, R. S., Frith, S. M., Thomason, L. W., Remsberg, E. E., von Savigny, C., Rozanov, A., and Burrows, J. P.: Ozone and temperature trends in the upper stratosphere at five stations of the Network for the Detection of Atmospheric Composition Change, Int. J. Remote Sens., 30, 3875–3886, 2009. Stolarski, R. S., McPeters, R. D., and Newman, P. A.: The ozone hole of 2002 as measured by TOMS, J. Atmos. Sci., 62(3), 716–720, 2005. Streibel, M., Rex, M., von der Gathen, P., Lehmann, R., Harris, N. R. P., Braathen, G. O., Reimer, E., Deckelmann, H., Chipperfield, M., Millard, G., Allaart, M., Andersen, S. B., Claude, H., Davies, J., De Backer, H., Dier, H., Dorokov, V., Fast, H., Gerding, M., Kyrö, E., Litynska, Z., Moore, D., Moran, E., Nagai, T., Nakane, H., Parrondo, C., Skrivankova, P., Stübi, R., Vaughan, G., Viatte, P., and Yushkov, V.: Chemical ozone loss in the Arctic winter 2002/2003 determined with Match, Atmos. Chem. Phys., 6, 2783–2792, http://dx.doi.org/10.5194/acp-6-2783-2006doi:10.5194/acp-6-2783-2006, 2006. Swinbank, R. and O'Neill, A.: A stratosphere-troposphere data assimilation system, Mon. Weather Rev., 122, 686–702, 1994. Tsvetkova, N. D., Yushkov, V. A., Luk'yanov, A. N., Dorokhov, V. M., and Nakane, H.: Record-breaking chemical destruction of ozone in the arctic during the winter of 2004/2005, Izvestiya Atmos. Ocean. Phys., 43, 592–598, 2007. Tilmes, S., Müller, R, Grooß, J.-U., and Russell, J. M.: Ozone loss and chlorine activation in the Arctic winters 1991–2003 derived with the tracer-tracer correlations, Atmos. Chem. Phys., 4, 2181–2213, http://dx.doi.org/10.5194/acp-4-2181-2004doi:10.5194/acp-4-2181-2004, 2004. Tilmes, S., Müller, R., Grooß, J.-U., Spang, R., Sugita, T., Nakajima, H., and Sasano, Y.: Chemical ozone loss and related processes in the Antarctic winter 2003 based on Improved Limb Atmospheric Spectrometer (ILAS)–II observations, J. Geophys. Res., 111, D11S12, http://dx.doi.org/10.1029/2005JD006260doi:10.1029/2005JD006260, 2006. Tilmes, S., Kinnison, D. E., Garcia, R. R., Müller, R., Sassi, F., Marsh, D. R., and Boville, B. A.: Evaluation of heterogeneous processes in the polar lower stratosphere in the Whole Atmosphere Community Climate Model, J. Geophys. Res., 112, D24301, http://dx.doi.org/10.1029/2006JD008334doi:10.1029/2006JD008334, 2007. von Clarmann, T., Glatthor, N., Ruhnke, R., Stiller, G. P., Kirner, O., Reddmann, T., Höpfner, M., Kellmann, S., Kouker, W., Linden, A., and Funke, B.: HOCl chemistry in the Antarctic Stratospheric Vortex 2002, as observed with the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS), Atmos. Chem. Phys., 9, 1817–1829, http://dx.doi.org/10.5194/acp-9-1817-2009doi:10.5194/acp-9-1817-2009, 2009. von Hobe, M., Ulanovsky, A., Volk, C. M., Grooß, J.-U., Tilmes, S., Konopka, P., Günther, G., Werner, A., Spelten, N., Shur, G., Yushkov, V., Ravegnani, F., Schiller, C., Müller, R., and Stroh F.: Severe ozone depletion in the cold Arctic winter 2004–05, Geophys. Res. Lett., 33, L17815, http://dx.doi.org/10.1029/2006GL026945doi:10.1029/2006GL026945, 2006. von Hobe, M., Stroh, F., Beckers, H., Benter, T., and Willner, H.: The UV/Vis absorption spectrum of matrix-isolated dichlorine peroxide, ClOOCl, Phys. Chem. Chem. Phys., 11, 1571–1580, http://dx.doi.org/10.1039/B814373Kdoi:10.1039/B814373K, 2009. von Savigny, C., Rozanov, A., Bovensmann, H., Eichmann, K.-U., Noël, S., Rozanov, V., Sinnhuber, B.-M., Weber, M., Burrows, J P., and Kaiser, J W.: The ozone hole breakup in September 2002 as seen by SCIAMACHY on ENVISAT, J. Atmos. Sci., 62, 721–734, 2005a. von Savigny, C., Ulasi, E. P., Eichmann, K.-U., Bovensmann, H., and Burrows, J. P.: Detection and mapping of polar stratospheric clouds using limb scattering observations, Atmos. Chem. Phys., 5, 3071–3079, http://dx.doi.org/10.5194/acp-5-3071-2005doi:10.5194/acp-5-3071-2005, 2005b. Varotsos, C.: The southern hemisphere ozone hole split in 2002, Environ. Sci. Pollut. Res., 9, 375–376, 2002. Weber, M., Dhomse, S., Wittrock, F., Richter, A., Sinnhuber, B.-M., and Burrows, J P.: Dynamical control of NH and SH winter/spring total ozone from GOME observations in 1995–2002, Geophys. Res. Lett., 30, 1583, http://dx.doi.org/10.1029/2002GL016799doi:10.1029/2002GL016799, 2003. WMO (World Meteorological Organization), Scientific Assessment of Ozone Depletion: 2002, Global Ozone Research and Monitoring Project-Report 47, Geneva, Switzerland, 2003. WMO (World Meteorological Organization), Scientific Assessment of Ozone Depletion: 2006, Global Ozone Research and Monitoring Project-Report 50, Geneva, Switzerland, 2007. WMO (World Meteorological Organization), Scientific Assessment of Ozone Depletion: 2010, Global Ozone Research and Monitoring Project-Report 52, Geneva, Switzerland, 2011.