A coordinated ground-based and IMAGE satellite study of quiet-time plasmaspheric density profiles
Article first published online: 17 JUN 2003
Copyright 2003 by the American Geophysical Union.
Geophysical Research Letters
Volume 30, Issue 12, June 2003
How to Cite
2003), A coordinated ground-based and IMAGE satellite study of quiet-time plasmaspheric density profiles, Geophys. Res. Lett., 30, 1600, doi:10.1029/2003GL016946, 12., , , , , , and (
- Issue published online: 17 JUN 2003
- Article first published online: 17 JUN 2003
- Manuscript Accepted: 12 MAY 2003
- Manuscript Revised: 29 APR 2003
- Manuscript Received: 17 JAN 2003
 Cold plasma mass density profiles in the plasmasphere have been determined for the geomagnetically quiet day of 19th August 2000 using the cross-phase technique applied to ground-based magnetometer data from the SAMNET, IMAGE and BGS magnetometer arrays. Cross-phase derived mass densities have been compared to electron densities derived from both ground-based VLF receiver measurements, and the IMAGE satellite RPI. The cross-phase results are in excellent agreement with both the VLF and IMAGE observational results, thus validating the cross-phase technique during quiet times. This is the first such coordinated multi-instrument study, and has enabled very few heavy ions to be inferred in the plasmasphere for L > 3.45 on this day. The observational results were compared to plasma mass densities from the SUPIM model and were found to be in excellent agreement. IMAGE EUV data also verified the existence of azimuthal structure in the outer quiet-time plasmasphere.