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Article Dans Une Revue Journal of Science of the Earth Année : 2012

Ionospheric conductivity from the Ionograms recorded at Phu Thuy Hanoï

Hong Pham Thi Thu
  • Fonction : Auteur
Minh Le Huy
  • Fonction : Auteur

Résumé

Ionospheric conductivity from the ionograms recorded at Phu Thuy, Hanoi This is the first study result about the structure of the ionospheric conductivity at the northern tropical crest of ionization in Vietnam. This paper presents briefly the theory of the ionospheric conductivity and shows the Pedersen and Hall conductivity profiles derived from ionograms recorded at Phu Thuy, Hanoi during the 1996 - 2004 period and the MISIS90 atmospheric model. We analyzed the diurnal, seasonal and sunspot cycle variations of ionospheric conductivity during magnetically quiet days during the period of interest. The profiles of the Hall and Pedersen ionospheric conductivities showed a maximum at 12.00 LT; Hall conductivity reached to maximum at an altitude of around 107.3±0.5 Km, meanwhile the profiles of the ionospheric Pedersen conductivity reached to maximum at altitude of around 127.1±0.8 Km. Maximum amplitude of Hall conductivity was greater than the one of Pedersen conductivity. Both conductivities varied clearly with the season and the amplitude of these maximums was greater in summer than in other seasons. The Hall and Pedersen ionospheric conductivities varied also on the time depending on the sunspot number.
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Dates et versions

hal-01553726 , version 1 (03-07-2017)

Identifiants

  • HAL Id : hal-01553726 , version 1

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Hong Pham Thi Thu, Christine Amory-Mazaudier, Minh Le Huy. Ionospheric conductivity from the Ionograms recorded at Phu Thuy Hanoï. Journal of Science of the Earth, 2012, 34 (4), pp.524-534. ⟨hal-01553726⟩
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