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An unexpected disruption of the atmospheric quasi-biennial oscillation

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dc.contributor.author Osprey, Scott M.
dc.contributor.author Butchart, Neal
dc.contributor.author Knight, Jeff R.
dc.contributor.author Scaife, Adam A.
dc.contributor.author Hamilton, Kevin
dc.contributor.author Anstey, James A.
dc.contributor.author Schenzinger, Verena
dc.contributor.author Zhang, Chunxi
dc.date.accessioned 2017-02-27T21:17:27Z
dc.date.available 2017-02-27T21:17:27Z
dc.date.issued 2016-09-23
dc.identifier.citation Osprey, S, Butchart, N, Knight, JR et al., (2016). An unexpected disruption of the atmospheric quasi-biennial oscillation. Science, 353 (6306), 1424-1427.
dc.identifier.uri http://hdl.handle.net/10125/43740
dc.description.abstract One of the most repeatable phenomena seen in the atmosphere, the quasi-biennial oscillation (QBO) between prevailing eastward and westward wind jets in the equatorial stratosphere (approximately 16 to 50 kilometers altitude), was unexpectedly disrupted in February 2016. An unprecedented westward jet formed within the eastward phase in the lower stratosphere and cannot be accounted for by the standard QBO paradigm based on vertical momentum transport. Instead, the primary cause was waves transporting momentum from the Northern Hemisphere. Seasonal forecasts did not predict the disruption, but analogous QBO disruptions are seen very occasionally in some climate simulations. A return to more typical QBO behavior within the next year is forecast, although the possibility of more frequent occurrences of similar disruptions is projected for a warming climate.
dc.format.extent 10 pages
dc.language.iso en-US
dc.publisher Science
dc.relation.uri http://science.sciencemag.org/content/353/6306/1424.full
dc.title An unexpected disruption of the atmospheric quasi-biennial oscillation
dc.type Article
dc.type.dcmi Text
dc.identifier.doi 10.1126/science.aah4156
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