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| Titel |
On the role of ozone in long-term trends in the upper atmosphere-ionosphere system |
| VerfasserIn |
J. Laštovička |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 30, no. 5 ; Nr. 30, no. 5 (2012-05-08), S.811-816 |
| Datensatznummer |
250017222
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| Publikation (Nr.) |
 copernicus.org/angeo-30-811-2012.pdf |
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| Zusammenfassung |
| Origin of long-term trends in the thermosphere-ionosphere
system has been discussed since the beginning of trend studies. The two most
prioritized explanations have been those via long-term increase of
atmospheric concentration of greenhouse gases and long-term increase of
geomagnetic activity throughout the 20th century. Secular changes of
the Earth's main magnetic field play an important role in trends in a
limited region. Recently, Walsh and Oliver (2011) suggested that the
long-term cooling of the upper thermosphere (above 200 km) may be due
largely to the stratospheric ozone depletion. Here, we show that the role of
ozone is very important in the mesosphere and lower thermosphere but not in
the upper thermosphere. The suggestion of Walsh and Oliver (2011) is based
on historical (before 1988) data from Saint-Santin radar, whereas more
recent data do not support their conclusion. |
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