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The spatial scale of ozone depletion events derived from an autonomous surface ozone network in coastal Antarctica

Jones, A.E.; Wolff, E.W.; Brough, N.; Bauguitte, S.J.-B.; Weller, R.; Yela, M.; Navarro-Comas, M.; Ochoa, H.A.; Theys, N.. 2013 The spatial scale of ozone depletion events derived from an autonomous surface ozone network in coastal Antarctica. Atmospheric Chemistry and Physics, 13 (3). 1457-1467. 10.5194/acp-13-1457-2013

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Abstract/Summary

To probe the spatial extent of tropospheric ozone depletion events during Antarctic spring, a network of 10 autonomous ozone monitors was established around the Dronning Maud Land sector of Antarctica for a full calendar year. Together with manned stations in the area, the network covered a ~1200 km stretch of coast, as well as a transect ~300 km inland and to ~2000 m above sea level (a.s.l.). Here we present results from the spring period (August to October 2008). While some ozone depletion events were evident at only a single site, implying localised ozone destruction, others were evident across the network. The fact that, on occasions, ozone depletion events were observed at all coastal sites simultaneously, suggests the depleted air mass had a scale of at least 1200 km. As the ozone-poor air was advected from the Weddell Sea sea ice zone, the data imply that large areas over the Weddell Sea sea ice zone are significantly depleted in ozone on occasions during Antarctic spring.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.5194/acp-13-1457-2013
Programmes: BAS Programmes > Polar Science for Planet Earth (2009 - ) > Chemistry and Past Climate
ISSN: 1680-7324
Additional Information. Not used in RCUK Gateway to Research.: This work is distributed under the Creative Commons Attribution 3.0 License together with an author copyright. This license does not conflict with the regulations of the Crown Copyright.
Date made live: 24 Apr 2013 10:36 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/501473

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