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GPS scintillations over Vietnam on April 2006
Author(s)
Institut d’Electronique et de Te´ le´communications de Rennes (IETR), University of Rennes
Bourdillon, Alain
Vietnam Academy of Science and Technology (VAST), Institute of Geophysics
Le Huy, Minh
Department of Electronic and Electrical Engineering, University of Bath
Mitchell, Cathryn M.
Type
Oral presentation
Language
English
Obiettivo Specifico
3.9. Fisica della magnetosfera, ionosfera e meteorologia spaziale
Status
Unpublished
Conference Name
EGU General Assembly
Issued date
May 2, 2010
Conference Location
Vienna - Austria
Abstract
In Vietnam, at Hue (16.4°N, 107.6°E) and Hoc Mon (10.9°N, 106.6°E), are located two GPS receivers specially
modified for recording, at a sampling rate of 50 Hz, the phase and the amplitude of the L1 signal and the Total
Electron Content (TEC) from L1 and L2. In April 2006 both the receivers have observed post-sunset scintillation
inhibition when moderate magnetic storms occurred. These measurements together with a 3D plus time imaging
of the ionosphere produced by the Multi-Instrument Data Analysis System (MIDAS) have revealed interesting
features that will be described in the present paper. In particular, the results confirm the role of the ring current
on the generation of the equatorial F layer irregularities of scale size from less than a hundred meters to a few
kilometers, highlighting also its important role in inhibiting scintillation during the storm. The characterization
of the different conditions of the Interplanetary Magnetic Field (IMF) will be illustrated, as well, to attempt a
description of the scintillation effects over a region scarcely investigated in the open literature.
modified for recording, at a sampling rate of 50 Hz, the phase and the amplitude of the L1 signal and the Total
Electron Content (TEC) from L1 and L2. In April 2006 both the receivers have observed post-sunset scintillation
inhibition when moderate magnetic storms occurred. These measurements together with a 3D plus time imaging
of the ionosphere produced by the Multi-Instrument Data Analysis System (MIDAS) have revealed interesting
features that will be described in the present paper. In particular, the results confirm the role of the ring current
on the generation of the equatorial F layer irregularities of scale size from less than a hundred meters to a few
kilometers, highlighting also its important role in inhibiting scintillation during the storm. The characterization
of the different conditions of the Interplanetary Magnetic Field (IMF) will be illustrated, as well, to attempt a
description of the scintillation effects over a region scarcely investigated in the open literature.
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Vietnam_EGU10_SAVE.pdf
Description
Presentation
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