A21Q:
Stratospheric Ozone Change, Its Impact on Climate and Understanding of Uncertainties in Data Records I

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Session ID#: 33503

Session Description:
Stratospheric ozone changes have been shown to have far-reaching impacts on climate through radiative and dynamical effects. Modelling and observational studies have detected the imprint of ozone on changes in the subtropical and midlatitude atmospheric circulation with associated impacts on the ocean circulation, sea ice and regional surface climate. Uncertainties remain in the observed stratospheric changes, the dynamical understanding and magnitude of the climate response to ozone changes and the interplay between ozone recovery and greenhouse gases into the future. Uncertainties in stratospheric and tropospheric ozone trends derived from long-term ozone records, including data produced through merging multiple data sources that have been combined to improve spatial or temporal sampling, or to extend the record in time will be addressed. In preparation for the 2018 WMO/UNEP Ozone Assessment, we invite papers on all aspects of long-term ozone changes and associated climate impacts in both hemispheres and on all timescales.
Primary Convener:  Irina V Petropavlovskikh, Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States
Conveners:  Julie Arblaster, Monash University, School of Earth, Atmosphere & Environment, Melbourne, VIC, Australia, Sophie Godin-Beekman, LATMOS/IPSL/CNRS/UVSQ, Guyancourt, France and Amanda Maycock, School of Earth and Environment, University of Leeds, Leeds, United Kingdom
Chairs:  Irina V Petropavlovskikh, Earth System Research Laboratory, Boulder, CO, United States and Julie Arblaster, Monash University, School of Earth, Atmosphere & Environment, Melbourne, VIC, Australia
OSPA Liaison:  Julie Arblaster, Monash University, School of Earth, Atmosphere & Environment, Melbourne, VIC, Australia
Index Terms:

0394 Instruments and techniques [ATMOSPHERIC COMPOSITION AND STRUCTURE]
1620 Climate dynamics [GLOBAL CHANGE]
1910 Data assimilation, integration and fusion [INFORMATICS]
3362 Stratosphere/troposphere interactions [ATMOSPHERIC PROCESSES]

Abstracts Submitted to this Session:

Ozone Decline and Recovery: The Significance of Uncertainties (Invited) (228087)
Neil Richard Peter Harris, Cranfield University, Cranfield, United Kingdom
How Well Can We Assess Atmospheric Ozone Changes? The OzoneSonde Data Quality Assessment (O3S-DQA) (269391)
Herman G J Smit, Forschungszentrum Jülich GmbH, Institute of Climate and Energy Systems 3: Troposphere (ICE-3), Jülich, Germany, David Walter Tarasick, Environment and Climate Change Canada, Air Quality Research Division, Toronto, ON, Canada, Anne M Thompson, University of Maryland Baltimore County at NASA/GSFC, Baltimore, United States, Gary A Morris, NOAA Boulder, Global Monitoring Laboratory, Boulder, United States, Jacqulyn C Witte, Science Systems and Applications, Inc., NASA Goddard Space Flight Center, Lanham, MD, United States and Jonathan Davies, University of British Columbia, Vancouver, BC, Canada
Pitfalls in Trend Analysis: Sampling, Drifts, and Orthogonality (251398)
Robert P Damadeo1, Joseph M Zawodny1, Ellis E Remsberg2 and Kaley A Walker3, (1)NASA Langley Research Center, Hampton, VA, United States, (2)NASA Langley, Yorktown, VA, United States, (3)University of Toronto, Department of Physics, Toronto, ON, Canada
Ozone depleting substances: a key forcing of the Brewer-Dobson circulation (256001)
Marta Abalos1, Prof. Lorenzo M Polvani, PhD2, Rolando R Garcia1, Douglas Edward Kinnison3 and William John Randel1, (1)National Center for Atmospheric Research, Boulder, CO, United States, (2)Columbia University, Department of Applied Physics and Applied Mathematics, New York, United States, (3)NCAR, Boulder, United States
Does coupled ocean enhance ozone-hole-induced Southern Hemisphere circulation changes? (Invited) (213621)
Seok Woo Son1, Bo-Reum Han2, Seo-Yeon Kim3, Rokjin Park1 and CCMI PIs, (1)Seoul National University, School of Earth and Environmental Sciences, Seoul, South Korea, (2)Seoul National University, Seoul, South Korea, (3)Boston College, Chestnut Hill, United States
Response of Antarctic sea surface temperature and sea ice to ozone depletion (Invited) (235772)
David Ferreira, University of Reading, Meteorology Department, Reading, United Kingdom, Anand Gnanadesikan, Johns Hopkins University, Earth & Planetary Sciences, Baltimore, MD, United States, Yavor Kostov, University of Exeter, Exeter, United Kingdom, John C Marshall, MIT, Cambridge, United States, William Seviour, Johns Hopkins University, Baltimore, MD, United States and Darryn Waugh, Johns Hopkins University, Earth and Planetary Sciences, Baltimore, MD, United States

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