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The Total Solar Eclipse of March 2006: Overview : Volume 8, Issue 17 (03/09/2008)

By Gerasopoulos, E.

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Book Id: WPLBN0003976150
Format Type: PDF Article :
File Size: Pages 16
Reproduction Date: 2015

Title: The Total Solar Eclipse of March 2006: Overview : Volume 8, Issue 17 (03/09/2008)  
Author: Gerasopoulos, E.
Volume: Vol. 8, Issue 17
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2008
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Economou, G., Amiridis, V., Belehaki, A., Zanis, P., Gerasopoulos, E., Kanakidou, M.,...Petrakis, M. (2008). The Total Solar Eclipse of March 2006: Overview : Volume 8, Issue 17 (03/09/2008). Retrieved from http://www.ebooklibrary.org/


Description
Description: National Observatory of Athens, V. Pavlou and I. Metaxa, P. Penteli, 15236, Athens, Greece. 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.

Summary
The total solar eclipse of March 2006: overview

Excerpt
Abram, J. P., Creasey, D. J., Heard, D. E., Lee, J. D., and Pilling, M. J.: Hydroxyl radical and ozone measurements in England during the solar eclipse of 11 August 1999, Geophys. Res. Lett., 27(D21), 3437–3440, 2000.; Altadill, D., Sole, J. G., and Apostolov, E. M.: Vertical structure of a gravity wave like oscillation in the ionosphere generated by the solar eclipse of 11~August~1999, J. Geophys. Res., 106(A10), 21 419–21 428, 2001.; Amiridis, V., Melas D., Balis, D. S., Papayannis, A., Founda, D., Katragkou, E., Giannakaki, E., Mamouri, R. E., Gerasopoulos, E., and Zerefos, C.: Aerosol lidar observations and model calculations of the planetary boundary layer evolution over Greece, during the March 2006 total solar eclipse, Atmos. Chem. Phys., 7, 6181–6189, 2007.; Anderson, R. C., Keefer, D. R., and Myers, O. E.: Atmospheric pressure and temperature changes during the 7 March 1970 solar eclipse, J. Atmos. Sci., 29, 583–587, 1972.; Anderson, J.: Meteorological changes during a solar eclipse, Weather, 54(7), 207–215, 1999.; Antonia, R. A., Chambers, A. J., Phong-Anant, D., Rajagopalan, S., and Sreenivasan, K. R.: Response of atmospheric surface layer turbulence to a partial solar eclipse, J. Geophys. Res., 4, 1689–1692, 1979.; Aplin, K. L. and Harrison, R. G.: Meteorological effects of the eclipse of 11 August 1999 in cloudy and clear conditions, Proc. R. Soc. Lond. A, 459, 353–372, doi:10.1098/rspa.2002.1042, 2002; Baran, L. W., Ephishov, I. I., Shagimuratov, I. I., Ivanov, V. P., and Lagovsky, A. F.: The response of the ionospheric total electron content to the solar eclipse on 11~August~1999, Adv. Space Res., 31, 4, 989–994, 2003.; Beynon W. J. G and Brown, G. M.: Literature on Solar Eclipses and the Ionosphere in Solar Eclipses and the Ionosphere, Pergamon Press, London, 1956.; Bojkov, R. D.: The ozone variations during the solar eclipse of 20~May~1966, Tellus, 20, 417–421, 1968.; Kawabata, Y.: Spectrographic observation on the amount of ozone at the total solar eclipse of 15~February~1961, J. Astron. Geophys., 14, 1–3, 1937.; Chakrabarty, D. K., Shah, N. C., and Pandya, K. V.: Fluctuation in ozone column over Ahmedabad during the solar eclipse of 24 October 1995, Geophys. Res. Lett., 24(23), 3001, 1997.; Chandra, H., Vyas, G. D., and Sharma, S.: Ionospheric effects of the total solar eclipse of 24 October 1995, over Ahmedabad, Ind. J. of Radio & Space Phys., 26, 30–35, 1997.; Chimonas, G.: Internal gravity-wave motions induced in the Earth's atmosphere by a solar eclipse, J. Geophys. Res., 75, 5545–5551, 1970.; Deen, J. L. and Bruner, M. H.: The effect of the 1932 eclipse upon the width of stomatal openings in gray birch, Ecology, 14, 76–77, 1933.; Dyson, F. W., Eddington, A. S., and Davidson C.: A determination of the deflection of light by the Sun's gravitational field, from observations made at the total eclipse of 29~May~1919, Philos. Trans. Royal Soc. London, 220(A), 291–333, 1920.; Eaton, F. D., Hines, J. R., Hatch, W. H., Cionco, R. M., Byers, J., Garvey, D., and Miller, D. R.: 10 Solar eclipse effects observed in the planetary boundary layer over a desert, Bound.-Lay. Meteorol., 83, 331–346, 1997.; Eckermann, S. D., Broutman, D., Stollberg, M. T., Ma, J., Mc-Cormack, J. P., and Hogan, T. F.: Atmospheric effects of the total solar eclipse of 4~December 2002 simulated with a high-altitude global Model, J. Geophys. Res., 112, D14105, doi:10.1029/2006JD007880, 2007.; Economou, G., Christou, E. D., Giannakourou, A., Gerasopoulos, E., Georgopoulos, D., Kotoulas, V., Lyra, D., Tsakalis, N., Tzortziou, M., Vahamidis, P., Papathanassiou, E., and Karamanos, A.: Eclipse effects on field crops and marine zooplankton: the 29 March 2006 total solar eclipse, Atmos. Chem. Phys., 8, 4665–4676, 2008.; Emde, C. and Mayer, B.: Simulation of solar radiation during a total eclipse: a challenge for radiative transfer Atmos. Chem. Phys., 7, 2259–2270, 2007; Espenak, F. and Anderson, J.: Total Solar Eclipse of 2006 March 29, NASA/TP–

 

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