Trends in the polar summer mesosphere temperature and pressure altitude from satellite observations

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dc.contributor.authorBailey, Scott M.en
dc.contributor.authorThurairajah, Brenthaen
dc.contributor.authorHervig, Mark E.en
dc.contributor.authorSiskind, David E.en
dc.contributor.authorRussell, James M. IIIen
dc.contributor.authorGordley, Larry L.en
dc.contributor.departmentCenter for Space Science and Engineering Researchen
dc.contributor.departmentElectrical and Computer Engineeringen
dc.date.accessioned2021-07-20T18:48:06Zen
dc.date.available2021-07-20T18:48:06Zen
dc.date.issued2021-09-01en
dc.description.abstractTime series of mesospheric temperature and pressure altitude are produced through combining observations by the Halogen Occultation Experiment (HALOE), Sounding of the Atmosphere Using Broadband Emission Radiometry (SABER), and Solar Occultation for Ice Experiment (SOFIE) instruments. Time series of both temperature and pressure altitude are produced through the combination of HALOE/SABER providing 29 years in length and HALOE/SOFIE providing 22 years in length. The different sampling of the three instruments constrains the time series to June in the northern hemisphere and December in the southern hemisphere and 6470 degrees in both hemispheres. We interpret the time series by fitting them to simple descriptions of the variations including solar, intra-hemispheric, inter-hemispheric, and linear trend terms. The inferred intra- and inter-hemispheric terms show that dynamical influences rival solar variability in the mesosphere. We find a robust result that the mesosphere is in general cooling at most altitudes at approximately 1-2 K per decade in response to greenhouse gas increases. That cooling leads to a shrinking of the atmosphere on the order of 100-200 m per decade. The shrinking leads to a reduction in cooling and eventually a warming near 0.005 hPa due to hydrostatic contraction.en
dc.description.notesWe thank the HALOE, SABER, and SOFIE teams for the observations and the AIM science team for helpful discussions. HALOE, SABER, and SOFIE data are available at http://haloe.gats-usa.net/download/index.php, http://saber.gats-usa.net/data_services.php, and http://sofie.gat s-usa.net/sofie/index.php respectively. This work was supported by NASA's small explorer program.en
dc.description.sponsorshipNASA's small explorer programen
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1016/j.jastp.2021.105650en
dc.identifier.eissn1879-1824en
dc.identifier.issn1364-6826en
dc.identifier.other105650en
dc.identifier.urihttp://hdl.handle.net/10919/104228en
dc.identifier.volume220en
dc.language.isoenen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectMesosphereen
dc.subjectTemperatureen
dc.subjectTrendsen
dc.titleTrends in the polar summer mesosphere temperature and pressure altitude from satellite observationsen
dc.title.serialJournal of Atmospheric and Solar-Terrestrial Physicsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.dcmitypeStillImageen

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