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| Titel |
The total solar eclipse of March 2006: overview |
| VerfasserIn |
E. Gerasopoulos, C. S. Zerefos, I. Tsagouri, D. Founda, V. Amiridis, A. F. Bais, A. Belehaki, N. Christou, G. Economou, M. Kanakidou, A. Karamanos, M. Petrakis, P. Zanis |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 8, no. 17 ; Nr. 8, no. 17 (2008-09-03), S.5205-5220 |
| Datensatznummer |
250006360
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| Publikation (Nr.) |
 copernicus.org/acp-8-5205-2008.pdf |
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| Zusammenfassung |
| This paper provides the overview of an integrated, multi-disciplinary effort
to study the effects of the 29 March 2006 total solar eclipse on the
environment, with special focus on the atmosphere. The eclipse has been
visible over the Eastern Mediterranean, and on this occasion several
research and academic institutes organised co-ordinated experimental
campaigns, at different distances from eclipse totality and at various
environments in terms of air quality. Detailed results and findings are
presented in a number of component scientific papers included in a Special
Issue of Atmospheric Chemistry and Physics. The effects of the eclipse on
meteorological parameters, though very clear, were shown to be controlled by
local factors rather than the eclipse magnitudes, and the turbulence
activity near surface was suppressed causing a decrease in the Planetary
Boundary Layer. In addition to the above, the decrease in solar radiation
has caused change to the photochemistry of the atmosphere, with night time
chemistry dominating. The abrupt "switch off" of the sun, induced changes
also in the ionosphere (140 up to 220 km) and the stratosphere. In the
ionosphere, both photochemistry and dynamics resulted to changes in the
reflection heights and the electron concentrations. Among the most important
scientific findings from the experiments undertaken has been the
experimental proof of eclipse induced thermal fluctuations in the ozone
layer (Gravity Waves), due to the supersonic movement of the moon's shadow,
for the first time with simultaneous measurements at three altitudes namely
the troposphere, the stratosphere and the ionosphere. Within the challenging
topics of the experiments has been the investigation of eclipse impacts on
ecosystems (field crops and marine plankton). The rare event of a total
solar eclipse provided the opportunity to evaluate 1 dimensional (1-D) and
three dimensional (3-D) radiative transfer (in the atmosphere and
underwater), mesoscale meteorological, regional air quality and
photochemical box models, against measurements. |
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