Electric field and current density profiles in the lower ionosphere
Article first published online: 7 DEC 2012
Copyright 1973 by the American Geophysical Union.
Volume 8, Issue 11, pages 1077–1081, November 1973
How to Cite
1973), Electric field and current density profiles in the lower ionosphere, Radio Sci., 8(11), 1077–1081, doi:10.1029/RS008i011p01077., and (
- Issue published online: 7 DEC 2012
- Article first published online: 7 DEC 2012
- Manuscript Received: 13 AUG 1973
Results of a rocket flight are reported where electric fields and ion drifts have been measured between 100 and 192 km in the auroral ionosphere. Electric fields were measured by means of a double probe system, while ion drifts were derived from wake measurements. It is found that the electric field vector stays fairly constant over the indicated range in altitude, although a marked difference exists between the upleg and downleg measurements. The ion drift vector changes as expected from collision frequency profiles. By combining the electron drift vector, which is determined by the electric and magnetic field only, and the ion drift vector, it is possible to derive the current density profile for both the upleg and downleg of the trajectory. Again, a pronounced difference in current density profiles exists for upleg and downleg. The profiles obtained are consistent with ground-based magnetometer observations.