Resonant interaction between two planetary waves as a precursor for stratospheric warmings?
Wüst, Sabine and Bittner, Michael (2011) Resonant interaction between two planetary waves as a precursor for stratospheric warmings? Journal of Atmospheric and Solar-Terrestrial Physics (73), pp. 771-778. Elsevier. DOI: 10.1016/j.jastp.2011.01.004. ISSN 1364-6826.
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Stratospheric warmings are attributed to an enhanced planetary wave activity, occuring nearly each winter - at least in the northern hemisphere - with different strengths. The generation of stratospheric warmings is not totally understood. One of the most promising explanations is the interaction of planetary waves: in many cases, the amplitude of the quasi-stationary planetary wave 1 builds up, until it transmits its momentum and energy to the background wind field. The role of wave 2 is usually considered to be less important. Based on ERA-40 and DYANA temperature data (January-February 1990), we found evidence that a resonant wave-wave interaction between a travelling and a stationary wave 2 was responsible for a minor stratospheric warming in February 1990. The interaction being observed during four weeks can eventually be used as an indication for an upcoming stratospheric warming.
|Title:||Resonant interaction between two planetary waves as a precursor for stratospheric warmings?|
|Date:||19 January 2011|
|Journal or Publication Title:||Journal of Atmospheric and Solar-Terrestrial Physics|
|In Open Access:||No|
|In ISI Web of Science:||Yes|
|Page Range:||pp. 771-778|
|Keywords:||planetary waves, resonant wave-wave interaction, stratospheric warming, precursur|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Space|
|HGF - Program Themes:||W EO - Erdbeobachtung|
|DLR - Research area:||Space|
|DLR - Program:||W EO - Erdbeobachtung|
|DLR - Research theme (Project):||W - Vorhaben Datenprodukte für Klima- und Atmosphärenanwendungen|
|Institutes and Institutions:||German Remote Sensing Data Center > Atmosphere|
|Deposited By:||Karla Wagner|
|Deposited On:||12 Apr 2011 12:33|
|Last Modified:||24 Apr 2013 16:23|
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