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Titel |
The effect of the total solar eclipse of 29 March 2006 on meteorological variables in Greece |
VerfasserIn |
D. Founda, D. Melas, S. Lykoudis, I. Lisaridis, E. Gerasopoulos, G. Kouvarakis, M. Petrakis, C. Zerefos |
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 ; 7, no. 21 ; Nr. 7, no. 21 (2007-11-06), S.5543-5553 |
Datensatznummer |
250005244
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Publikation (Nr.) |
copernicus.org/acp-7-5543-2007.pdf |
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Zusammenfassung |
This paper examines the effect of the total solar eclipse of 29 March 2006
on meteorological variables across Greece. Integrated micrometeorological
measurements were conducted at Kastelorizo, a small island within the path
of totality, and other sites within the Greek domain, with various degrees
of solar obscuration. The observations showed a dramatic reduction in the
incoming global radiation and subsequent, pronounced changes in surface air
temperature with the lowest temperature values occurring about 15 min
after the full phase. The amplitude of the air temperature drop was not
analogous to the obscuration percentage but was principally determined by
the surrounding environment (mainly the sea influence), the background
meteorological conditions and local cloudiness. Surface wind-speed decreased
in most sites as a result of the cooling and stabilization of the
atmospheric boundary layer. This perturbation provided a unique opportunity
to apply a sensitivity analysis on the effect of the eclipse to the Weather
Research and Forecast (WRF) numerical mesoscale meteorological model. Strong
anomalies, not associated with a dynamic response, were simulated over land
especially in surface air temperature. The simulated temperature drop
pattern was consistent with the observations. |
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