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| Titel |
Impact of the stratospheric warming 2012/2013 on the upper mesosphere |
| VerfasserIn |
Michael Bittner, Lisa Küchelbacher, Carsten Schmidt, Sabine Wuest |
| Konferenz |
EGU General Assembly 2014
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 16 (2014) |
| Datensatznummer |
250095377
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| Publikation (Nr.) |
 EGU/EGU2014-10827.pdf |
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| Zusammenfassung |
| Impact of the stratospheric warming 2012 / 2013 on the upper mesosphere
The effects of stratospheric warming events are not restricted to the stratosphere only. There is also considerable impact on the mesosphere.
Remote-sensing data derived by satellite and ground-based instruments are analysed in order to dynamically characterize the stratospheric warming event which took place during winter 2012/2013.
The temporal and spatial structure of planetary waves with zonal wave number 1 to 3 is studied from strato- to mesospheric heights using global ozone and temperature data from METOP-GOME-2 and TIMED-SABER, respectively. Ground-based infrared airglow spectrometer measurements (GRIPS) of OH rotational temperature in the mesopause region derived at European mid-latitude NDMC stations complete the data set.
Planetary wave amplitudes show characteristic warming pulses whereby planetary wave with zonal wave number 3 significantly changes period and phase speed. The changing planetary wave regime obviously affects gravity wave propagation up to the mesosphere. Indication for varying mesopause airglow layer height is found. |
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