Meteor radar observations of mesosphere/lower thermosphere (MLT) daily temperatures have been performed at Collm, Germany since August 2004. The data have been analyzed with respect to long-period oscillations at time scales of 2–30 days. The results reveal that oscillations with periods of up to 6 days are more frequently observed during summer, while those with longer periods have larger amplitudes during winter. The oscillations may be considered as the signature of planetary waves. The results are compared with analyses from radar wind measurements. Moreover, the temperature oscillations show considerable year-to-year variability. In particular, amplitudes of the quasi 5-day oscillation have increased during the last decade, and the quasi 10-day oscillations are larger if the equatorial stratospheric winds are eastward.
| Identifer | oai:union.ndltd.org:DRESDEN/oai:qucosa:de:qucosa:15011 |
| Date | January 2016 |
| Creators | Jacobi, Christoph, Samtleben, Nadja, Stober, Gunter |
| Contributors | Universität Leipzig, Leibniz-Instituts für Atmosphärenphysik e.V |
| Publisher | Copernicus Publications, International Scientific Radio Union |
| Source Sets | Hochschulschriftenserver (HSSS) der SLUB Dresden |
| Language | English |
| Detected Language | English |
| Type | doc-type:article, info:eu-repo/semantics/article, doc-type:Text |
| Source | Adv. Radio Sci., 14, 169–174, 2016 www.adv-radio-sci.net/14/169/2016/ doi:10.5194/ars-14-169-2016 |
| Rights | info:eu-repo/semantics/openAccess |
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