Theoretical study of the high-latitude ionosphere's response to multicell convection patterns

Details Theoretical study of the high-latitude ionosphere's response to multicell convection patterns Theoretical study of the high-latitude ionosphere's response to multicell convection patterns

Aug 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987jgr....92.8733s&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 92, Aug. 1, 1987, p. 8733-8744.

Physics

13

Convective Flow, F Region, Ionospheric Ion Density, Space Plasmas, Electron Precipitation, Interplanetary Magnetic Fields, Magnetohydrodynamic Flow, Oxygen Ions, Polar Caps, Three Dimensional Models

Scientific paper

A time-dependent three-dimensional model of the high-latitude ionosphere is used to study the characteristic ionospheric signatures associated with two-, three-, and four-cell plasma convection patterns. It is found that, for two-cell convection, the antisunward flow of plasma from the dayside into the polar cap acts to maintain the densities in this region in winter. For four-cell convection, the two additional convection cells in the polar cap are in darkness most of the time, and the resulting O(+) decay acts to produce twin polar holes that are separated by a sun-aligned ridge of enhanced ionization due to theta-auroral precipitation. For three-cell convection, only one polar hole forms in the total electron density, and an additional O(+) depletion region develops near noon. In this region there are strong electric fields, high ion temperatures, and an enhanced rate of O(+) - NO(+) conversion.

Affiliated with

Also associated with

No associations

Rating

Theoretical study of the high-latitude ionosphere's response to multicell convection patterns 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 Theoretical study of the high-latitude ionosphere's response to multicell convection patterns, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Theoretical study of the high-latitude ionosphere's response to multicell convection patterns will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1341555