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dc.contributor.authorSacha , Petr 
dc.contributor.authorMiksovsky, Jiri
dc.contributor.authorPisoft, Petr
dc.date.accessioned2022-12-23T12:31:29Z
dc.date.available2022-12-23T12:31:29Z
dc.date.issued2018-05-24
dc.identifier.citationEarth System Dynamics, 9(2): 647-661 (2018)spa
dc.identifier.issn21904987
dc.identifier.urihttp://hdl.handle.net/11093/4286
dc.description.abstractGravity wave drag (GWD) is an important driver of the middle atmospheric dynamics. However, there are almost no observational constraints on its strength and distribution (especially horizontal). In this study we analyze orographic GWD (OGWD) output from Canadian Middle Atmosphere Model simulation with specified dynamics (CMAM-sd) to illustrate the interannual variability in the OGWD distribution at particular pressure levels in the stratosphere and its relation to major climate oscillations. We have found significant changes in the OGWD distribution and strength depending on the phase of the North Atlantic Oscillation (NAO), quasi-biennial oscillation (QBO) and El Niño–Southern Oscillation. The OGWD variability is shown to be induced by lower-tropospheric wind variations to a large extent, and there is also significant variability detected in near-surface momentum fluxes. We argue that the orographic gravity waves (OGWs) and gravity waves (GWs) in general can be a quick mediator of the tropospheric variability into the stratosphere as the modifications of the OGWD distribution can result in different impacts on the stratospheric dynamics during different phases of the studied climate oscillations.en
dc.description.sponsorshipGrantová Agentura České Republiky | Ref. 16-01562Jspa
dc.description.sponsorshipSecretaría de Estado de Investigación, Desarrollo e Innovación | Ref. CGL2015-71575-Pspa
dc.description.sponsorshipGrantová Agentura České Republiky | Ref. 18-01625Sspa
dc.language.isoengspa
dc.publisherEarth System Dynamicsspa
dc.relationinfo:eu-repo/grantAgreement/MICINN//CGL2015-71575-P/ES
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleInterannual variability in the gravity wave drag – vertical coupling and possible climate linksen
dc.typearticlespa
dc.rights.accessRightsopenAccessspa
dc.identifier.doi10.5194/esd-9-647-2018
dc.identifier.editorhttps://esd.copernicus.org/articles/9/647/2018/spa
dc.subject.unesco2501 Ciencias de la Atmósferaspa
dc.date.updated2022-12-23T12:28:14Z
dc.computerCitationpub_title=Earth System Dynamics|volume=9|journal_number=2|start_pag=647|end_pag=661spa


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    Attribution 4.0 International
    Except where otherwise noted, this item's license is described as Attribution 4.0 International