GPS scintillation and TEC gradients at equatorial latitudes in April 2006

L Alfonsi, L Spogli, J R Tong, G De Franceschi, V Romano, A Bourdillon, M L Huy, Cathryn N Mitchell

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

We use observations of ionospheric scintillation at equatorial latitudes from 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. The receivers, called GISTM (GPS Ionospheric Scintillation and TEC Monitor), are located in Vietnam (Hue, 16.4 degrees N, 107.6 degrees E; Hoc Mon, 10.9 degrees N, 106.6 degrees E). These experimental observations are analysed together with the tomographic reconstruction of the ionosphere produced by the Multi-Instrument Data Analysis System (MIDAS) for investigating the moderate geomagnetic storm which occurred on early April 2006, under low solar activity. The synergic adoption of the ionospheric imaging and of the GISTM measurements supports the identification of the scale-sizes of the ionospheric irregularities causing scintillations and helps the interpretation of the physical mechanisms generating or inhibiting the appearance of the equatorial F layer irregularities. In particular, our study attributes to the turning of the IMF (Interplanetary Magnetic Field) between northward and southward direction an important role in the inhibition of the generation of spread F irregularities resulting in a lack of scintillation enhancement in the post-sunset hours.
Original languageEnglish
Pages (from-to)1750-1757
Number of pages8
JournalAdvances in Space Research
Volume47
Issue number10
DOIs
Publication statusPublished - 17 May 2011

Fingerprint

Scintillation
ionospherics
scintillation
Global positioning system
GPS
gradients
irregularities
Electrons
electrons
geomagnetic storm
monitors
solar activity
receivers
Vietnam
F region
ionosphere
spread F
sunset
Ionosphere
magnetic field

Keywords

  • TEC gradients
  • multi-instruments approach
  • low latitude ionosphere
  • GNSS scintillations

Cite this

Alfonsi, L., Spogli, L., Tong, J. R., De Franceschi, G., Romano, V., Bourdillon, A., ... Mitchell, C. N. (2011). GPS scintillation and TEC gradients at equatorial latitudes in April 2006. Advances in Space Research, 47(10), 1750-1757. https://doi.org/10.1016/j.asr.2010.04.020

GPS scintillation and TEC gradients at equatorial latitudes in April 2006. / Alfonsi, L; Spogli, L; Tong, J R; De Franceschi, G; Romano, V; Bourdillon, A; Huy, M L; Mitchell, Cathryn N.

In: Advances in Space Research, Vol. 47, No. 10, 17.05.2011, p. 1750-1757.

Research output: Contribution to journalArticle

Alfonsi, L, Spogli, L, Tong, JR, De Franceschi, G, Romano, V, Bourdillon, A, Huy, ML & Mitchell, CN 2011, 'GPS scintillation and TEC gradients at equatorial latitudes in April 2006', Advances in Space Research, vol. 47, no. 10, pp. 1750-1757. https://doi.org/10.1016/j.asr.2010.04.020
Alfonsi L, Spogli L, Tong JR, De Franceschi G, Romano V, Bourdillon A et al. GPS scintillation and TEC gradients at equatorial latitudes in April 2006. Advances in Space Research. 2011 May 17;47(10):1750-1757. https://doi.org/10.1016/j.asr.2010.04.020
Alfonsi, L ; Spogli, L ; Tong, J R ; De Franceschi, G ; Romano, V ; Bourdillon, A ; Huy, M L ; Mitchell, Cathryn N. / GPS scintillation and TEC gradients at equatorial latitudes in April 2006. In: Advances in Space Research. 2011 ; Vol. 47, No. 10. pp. 1750-1757.
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