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dc.contributor.authorDe Wit, Rosmarie Johanna
dc.contributor.authorHibbins, Robert
dc.contributor.authorEspy, Patrick Joseph
dc.contributor.authorOrsolini, Yvan
dc.contributor.authorLimpasuvan, Varavut
dc.contributor.authorKinnison, Douglas E.
dc.date.accessioned2015-02-27T11:59:40Z
dc.date.accessioned2015-11-19T13:47:03Z
dc.date.available2015-02-27T11:59:40Z
dc.date.available2015-11-19T13:47:03Z
dc.date.issued2014
dc.identifier.citationGeophysical Research Letters 2014, 41(13):4745-4752nb_NO
dc.identifier.issn0094-8276
dc.identifier.urihttp://hdl.handle.net/11250/2364844
dc.description.abstractStudies of vertical and interhemispheric coupling during Sudden Stratospheric Warmings (SSWs) suggest that gravity wave (GW) momentum flux divergence plays a key role in forcing the middle atmosphere, although observational validation of GW forcing is limited. We present a whole atmosphere view of zonal winds from the surface to 100 km during the January 2013 major SSW, together with observed GW momentum fluxes in the mesopause region derived from uninterrupted high-resolution meteor radar observations from an All-Sky Interferometric Meteor Radar system located at Trondheim, Norway (63.4°N, 10.5°E). Observations show GW momentum flux divergence 6 days prior to the SSW onset, producing an eastward forcing with peak values of ∼+145 ± 60ms−1d−1. As the SSW evolves, GW forcing turns westward, reaching a minimum of ∼−240 ± 70ms−1d−1∼+18 days after the SSW onset. These results are discussed in light of previous studies and simulations using the Whole Atmosphere Community Climate Model with Specified Dynamics.nb_NO
dc.language.isoengnb_NO
dc.publisherAmerican Geophysical Unionnb_NO
dc.titleObservations of gravity wave forcing of the mesopause region during the January 2013 major Sudden Stratospheric Warmingnb_NO
dc.typeJournal articlenb_NO
dc.typePeer revieweden_GB
dc.date.updated2015-02-27T11:59:40Z
dc.source.pagenumber4745-4752nb_NO
dc.source.volume41nb_NO
dc.source.journalGeophysical Research Lettersnb_NO
dc.source.issue13nb_NO
dc.identifier.doi10.1002/2014GL060501
dc.identifier.cristin1158553
dc.description.localcode©2014. The Authors. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.nb_NO


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