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Ionospheric behaviour over Europe during the solar eclipse of 3 October 2005

Jakowski, N. and Stankov, S. M. and Wilken, V. and Altadill, D. and Chum, J. and Buresova, D. and Boska, J. and Bamford, R. and Cander, L. and Stamper, R. (2006) Ionospheric behaviour over Europe during the solar eclipse of 3 October 2005. In: Geophysical Research Abstracts, ABS No. EGU06-A-08560, 8. EGU General Assembly, 2006-04-02 - 2006-04-07, Vienna, Austria. ISSN 1029-7006

Full text not available from this repository.

Official URL: http://www.cosis.net/abstracts/EGU06/08560/EGU06-J-08560.pdf

Abstract

An annular eclipse occurred on 3 October 2005 which provided a good opportunity to study the ionospheric/thermospheric response to solar radiation changes. Since the electron density peak behaviour of the F2 layer follows the local balance of plasmaproduction, loss and transport, the ionospheric plasma redistribution processes significantly affect the shape of the electron density profile. These processes are discussed here based on a comparison of vertical incidence sounding and total electron content data above selected ionosonde stations in Europe. The equivalent slab thickness, derived with a time resolution of 10 minutes, provides valuable information on the variation of the electron density profile shape during the eclipse. As the TEC measurements indicated, the photo production was reduced during the event in comparison with the neighbouring days. The supersonic motion of the Moon’s shadow through the atmosphere is capable of generating atmospheric gravity waves at ionospheric heights. Since the eclipse occurred on a geomagnetically quiet day, there were particularly good conditions for detecting and studying wavelike phenomena. Doppler shift spectrograms were recorded by an HF Doppler sounder during the eclipse showing that a distinct disturbance is observed in the band of maximum eclipse during its main phase. However, the disturbance is almost not distinguishable from locations about 200 km outside this band, which differs from previous measurements carried out during the solar eclipse of 11 August 1999.

Document Type:Conference or Workshop Item (Speech)
Title:Ionospheric behaviour over Europe during the solar eclipse of 3 October 2005
Authors:
AuthorsInstitution or Email of Authors
Jakowski, N.UNSPECIFIED
Stankov, S. M.UNSPECIFIED
Wilken, V.UNSPECIFIED
Altadill, D.UNSPECIFIED
Chum, J.UNSPECIFIED
Buresova, D.UNSPECIFIED
Boska, J.UNSPECIFIED
Bamford, R.UNSPECIFIED
Cander, L.UNSPECIFIED
Stamper, R.UNSPECIFIED
Date:April 2006
Journal or Publication Title:Geophysical Research Abstracts, ABS No. EGU06-A-08560
Volume:8
ISSN:1029-7006
Status:Published
Keywords:Ionosphere, Solar Eclipse
Event Title:EGU General Assembly
Event Location:Vienna, Austria
Event Type:international Conference
Event Dates:2006-04-02 - 2006-04-07
Organizer:EGU
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Ionosphärenerkundung (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Communication and Navigation
Deposited By: Dr. Stanimir Stankov
Deposited On:14 Nov 2006
Last Modified:14 Jan 2010 23:45

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