Comparing Equatorial Electric Fields Using the Tsyganenko R1 and R2 Models and the Hill-Siscoe Polar Cap Potential
Abstract
Tsyganenko et al. [2003] have developed empirical models (labeled here as TR1, TR2) for the Region-1 (R1) and Region-2 (R2) currents. These models offer the advantage of being analytically simple and solar-wind driven. A study will be performed that uses the TR1 and TR2 models as inputs into our SWAGE (Solar Wind Acting on the Geophysical Environment) model that determines the global ionospheric electric field. Comparisons will be made between the Tsyganenko approach and that derived from the Hill-Siscoe model. Both models will be used as inputs into a global ionospheric potential solver with the resulting equatorial electric fields being compared with those measured via the vertical drift at Jicamarca. It is anticipated that such an approach will lead to an improved, solar-wind dependent , empirical model for R1 and, possibly, for R2 that will be useful as near-term forecast tool.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2009
- Bibcode:
- 2009AGUFMSA23B1469R
- Keywords:
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- 2411 IONOSPHERE / Electric fields;
- 2415 IONOSPHERE / Equatorial ionosphere;
- 7924 SPACE WEATHER / Forecasting;
- 7954 SPACE WEATHER / Magnetic storms