Journal article
Latitudinal density dependence of magnetic field lines inferred from Polar plasma wave data
Journal of geophysical research, Vol.106(A4), pp.6195-6201
04/01/2001
DOI: 10.1029/2000JA000068
Abstract
Using observations of the electron density ne based on measurement of the upper hybrid resonance frequency by the Polar spacecraft Plasma Wave Instrument, we have examined the radial density dependence along field lines in the outer plasmasphere and the near plasma trough. Our technique depends on the fact that Polar crosses particular L values at two different points with different radial distance R. Sampled L values range from 2.5 to 6.3. In our plasmaspheric data set (ne ≥ 100 cm−3) we find that, on average, ne is flat along field lines from the equator up to the latitudes sampled by Polar (R ≳ 2 RE). In the plasma trough data set (ne < 100 cm−3) there is, on average, a mild radial dependence ne ∝ R−1.7.
Details
- Title: Subtitle
- Latitudinal density dependence of magnetic field lines inferred from Polar plasma wave data
- Creators
- J Goldstein - Dartmouth CollegeR. E Denton - Dartmouth CollegeM. K Hudson - Dartmouth CollegeE. G Miftakhova - Dartmouth CollegeS. L Young - Dartmouth CollegeJ. D Menietti - University of IowaD. L Gallagher - Marshall Space Flight Center
- Resource Type
- Journal article
- Publication Details
- Journal of geophysical research, Vol.106(A4), pp.6195-6201
- Publisher
- American Geophysical Union
- DOI
- 10.1029/2000JA000068
- ISSN
- 0148-0227
- eISSN
- 2156-2202
- Language
- English
- Date published
- 04/01/2001
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984627250902771
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