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| Titel |
Middle atmosphere dynamics inferred from ozone profiles with high temporal resolution |
| VerfasserIn |
Simone Studer, Klemens Hocke, Niklaus Kämpfer |
| Konferenz |
EGU General Assembly 2010
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 12 (2010) |
| Datensatznummer |
250035157
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| Zusammenfassung |
| The object of our research is to investigate middle atmosphere dynamics using the ozone data
sets of the ground-based microwave radiometer GROMOS. Temporal changes of vertical
ozone profiles are due to advection of ozone, temperature-sensitive photochemistry of ozone,
diurnal variation of UV irradiance, and other causes. Thus, ozone variations can indirectly
inform about middle atmospheric dynamics which are not well observed yet. The high
temporal resolution of 3 min makes GROMOS well suited for detailed observations and
characterization of short-term variations of the atmosphere in the altitude range from 20 to 70
km. Here, we present initial results on (1) the traces of short period gravity waves in
ozone; (2) the mean diurnal variations of stratospheric and mesospheric ozone for
different months; and (3) the response of ozone to the quasi two-day wave at the
stratopause.
Information about the ozone microwave radiometer GROMOS:
GROMOS is located in Bern (46-57’ N, 7-26’ E), Switzerland and measures continuously the vertical ozone distribution in the
middle atmosphere from 20 to 70 km altitude since November 1994. GROMOS is especially designed for long-term monitoring of
ozone with all-weather and all-daytime capability. It is part of the Network for the Detection of Atmospheric Composition Change
(NDACC). |
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