Physics
Scientific paper
Aug 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991jgr....9613907d&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 96, Aug. 1, 1991, p. 13,907-13,912. Research supported by Aerospace Corp.
Physics
45
Electric Fields, Energy Transfer, Ionospheric Drift, Plasma Drift, Radar Measurement, Solar Wind, Incoherent Scatter Radar, Ionospheric Electron Density, Polar Caps
Scientific paper
The possibility of using Sondrestrom incoherent radar scatter to estimate the rate of solar-wind energy transfer is examined by using plasma-velocity measurements in the separatrix reference frame. The separatrix is the boundary between open and closed field lines, and its orientation is deduced from all-sky images. The radar observations are used to determine the separatrix location and the ionospheric plasma drift. Measurements of the reconnection electric field in the midnight sector for one night are taken, revealing that the field is less than 15 mV/m during the time of local polar-cap extension. During polar-cap contraction the field range is 30-40 mV/m, and these periods correspond to substorm expansive phases. The limitations associated with measuring ionospheric plasma drift, the boundary orientation, and boundary location are enumerated. The measurements in the experimental case demonstrate the possibility of plasma transfer from closed to open field lines.
de La Beaujardiere Odile
Friis-Christensen Eigil
Lyons Larry R.
No associations
LandOfFree
Sondrestrom radar measurements of the reconnection electric field does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Sondrestrom radar measurements of the reconnection electric field, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sondrestrom radar measurements of the reconnection electric field will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1739316