Journal article

The Antarctic ozone hole during 2017

Andrew R Klekociuk, Matthew B Tully, Paul B Krummel, Oleksandr Evtushevsky, Volodymyr Kravchenko, Stuart Henderson, Simon P Alexander, Richard R Querel, Sylvia Nichol, Dan Smale, Gennadi P Milinevsky, Asen Grytsai, Paul J Fraser, Xiangdong Zheng, H Peter Gies, Robyn Schofield, Jonathan D Shanklin

Journal of Southern Hemisphere Earth Systems Science | CSIRO PUBLISHING | Published : 2019

Abstract

We review the 2017 Antarctic ozone hole, making use of various meteorological reanalyses, and in-situ, satellite and ground-based measurements of ozone and related trace gases, and ground-based measurements of ultraviolet radiation. The 2017 ozone hole was associated with relatively high-ozone concentrations over the Antarctic region compared to other years, and our analysis ranked it in the smallest 25% of observed ozone holes in terms of size. The severity of stratospheric ozone loss was comparable with that which occurred in 2002 (when the stratospheric vortex exhibited an unprecedented major warming) and most years prior to 1989 (which were early in the development of the ozone hole). D..

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University of Melbourne Researchers

Grants

Awarded by NASA Goddard Space Flight Center, Atmospheric Chemistry & Dynamics Branch


Awarded by Australian Antarctic Science program


Funding Acknowledgements

We acknowledge the Department of Environment and Energy of the Australian Government for support of this work, and the assistance of the following people: Jeff Ayton and the AAD's Antarctic Medical Practitioners in collecting the solar UV data, BoM staff/observers in collecting surface and upper air measurements at Cape Grim, Macquarie Island and Davis, and Antarctica New Zealand expeditioners in collecting measurements at Arrival Heights. Measurements at Arrival Heights are core-funded byNIWA through New Zealand's Ministry of Business, Innovation and Employment. The TOMS, OMI and OMPS data used in this study are provided by the NASA Goddard Space Flight Center, Atmospheric Chemistry & Dynamics Branch, Code 613.3. Aura/MLS data used in this study were acquired as part of the NASA's Earth-Sun System Division and archived and distributed by the Goddard Earth Sciences (GES) Data and Information Services Center (DISC) Distributed Active Archive Center (DAAC). UKMO reanalysis data were obtained from the British Atmospheric Data Centre (http://badc.nerc.ac.uk, accessed 1 May 2020). NCEP-NCAR reanalysis data were obtained from the National Oceanic and Atmospheric Administration Earth System Research laboratory, Physical Sciences Division. ERA-Interim reanalysis data were obtained from the data portal of the European Centre for Medium-Range Weather Forecasts (https://apps.ecmwf.int/datasets/, accessed 1 May 2020). Davis ozonesonde measurements are available from the World Ozone and Ultraviolet Radiation Data Centre (https://woudc.org, accessed 1 May 2020). Part of this work was performed under Project 4293 of the Australian Antarctic Science program. This research did not receive any specific grant funding.