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Discussion papers | Copyright
https://doi.org/10.5194/acp-2017-1075
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 02 Jan 2018

Research article | 02 Jan 2018

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This discussion paper is a preprint. A revision of this manuscript was accepted for the journal Atmospheric Chemistry and Physics (ACP) and is expected to appear here in due course.

Stratospheric ozone loss in the Arctic winters between 2005 and 2013 derived with ACE-FTS measurements

Debora Griffin1, Kaley A. Walker1,2, Ingo Wohltmann3, Sandip S. Dhomse4,5, Markus Rex3, Martyn P. Chipperfield4,5, Wuhu Feng4,6, Gloria L. Manney7,8, Jane Liu9,10, and David Tarasick11 Debora Griffin et al.
  • 1Department of Physics, University of Toronto, Toronto, Ontario, M5S 1A7, Canada
  • 2Department of Chemistry, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
  • 3Alfred Wegener Institute for Polar and Marine Research, 14401 Potsdam, Germany
  • 4Institute for Climate and Atmospheric Science, University of Leeds, Leeds, L2S 9JT, UK
  • 5National Centre for Earth Observation, University of Leeds, Leeds, L2S 9JT, UK
  • 6National Centre for Atmospheric Science, University of Leeds, Leeds, L2S 9JT, UK
  • 7NorthWest Research Associates, Socorro, New Mexico, USA
  • 8Department of Physics, New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801, USA
  • 9Department of Geography and Program in Planning, University of Toronto, Toronto, Ontario, M5S 3G3, Canada
  • 10Nanjing University, Nanjing, Jiangsu, 210023, China
  • 11Science and Technology Branch, Environment and Climate Change Canada, Toronto, Ontario, M3H 5T3, Canada

Abstract. Stratospheric ozone loss inside the Arctic polar vortex for the winters between 2004/2005 and 2012/2013 has been quantified using measurements from the space-borne Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS). Six different methods, including tracer-tracer correlation, artificial tracer correlation, average vortex profile descent, and passive subtraction with model output from both Lagrangian and Eulerian chemical transport models (CTMs), have been employed to determine the Arctic ozone loss (mixing ratio loss profiles and the partial column ozone losses between 380 and 550K). For the tracer-tracer, the artificial tracer, and the average vortex profile descent approaches, various tracers have been used. Here, we show that CH4, N2O, HF, and CFC-12 are suitable tracers for investigating polar stratospheric ozone depletion with ACE-FTS. The ozone loss estimates (in terms of the mixing ratio as well as total column ozone) are generally in good agreement between the different methods and among the different tracers. However, the tracer-tracer correlation method does not agree with the other estimation methods in March 2005 and using the average vortex profile descent technique typically leads to smaller maximum losses compared to all other methods. The passive subtraction method using output from CTMs generally results in smaller uncertainties and slightly larger losses compared to the techniques that use ACE-FTS measurements only. The ozone loss computed, using both measurements and models, shows the greatest loss during the 2010/2011 Arctic winter. For that year, our results show that maximum ozone loss (2.1–2.7ppmv) occurred at 460K. The estimated partial column ozone loss inside the polar vortex (between 380K and 550K) is 66–103DU, 61–95DU, 59–96DU, 41–89DU, and 85–122DU for March 2005, 2007, 2008, 2010, and 2011, respectively. Ozone loss is difficult to diagnose during 2005/2006, 2008/2009, 2011/2012, and 2012/2013 because strong polar vortex disturbance or major sudden stratospheric warming events significantly perturbed the polar vortex thereby limiting the number of measurements available for the analysis.

Debora Griffin et al.
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Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Interactive discussion
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
Debora Griffin et al.
Debora Griffin et al.
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