ionospheric conductivity dependence of dayside region-0, 1, and 2 field-aligned current systems: statistical study with dmsp-f7

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ID: 194040
2004
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Abstract
The present study statistically examines the dependence of the intensities of dayside (MLT=8-12h) large-scale field-aligned currents (FACs) on the ionospheric conductance using the summary data of DMSP-F7 constructed by the procedure of Higuchi and Ohtani (2000). We have found that, in the dayside region, R1 and R0 have a higher correlation between ionospheric conductivity and FAC intensity than R2, suggesting that R0 and R1 are driven by a more voltage-like source than R2. This result is consistent with the idea that R1 and R0 are driven by the interaction between the solar wind and the open magnetospheric magnetic field. We have also found that dayside FAC intensities are latitudinally well balanced when they have a three sheet structure (R0, R1 and R2); on the other hand, for a two sheet structure (R1 and R2), the intensity of R1 is larger than that of R2, so that the net current has the polarity of R1.
Reference Key
haraguchi2004annalesionospheric Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;K. Haraguchi;H. Kawano;K. Yumoto;S. Ohtani;T. Higuchi;G. Ueno
Journal journal of food measurement and characterization
Year 2004
DOI
10.5194/angeo-22-2775-2004
URL
https://www.ann-geophys.net/22/2775/2004/angeo-22-2775-2004.pdf
Keywords
cosmic physics sciencephysicsgeophysics

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