Computer Science
Scientific paper
Jun 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986thdy.work..189k&link_type=abstract
In NASA. Goddard Space Flight Center Thermosphere Dynamics Workshop, Volume 2 p 189-193 (SEE N86-29301 20-42)
Computer Science
Atmospheric Circulation, F Region, Interplanetary Magnetic Fields, Neutral Gases, Neutral Particles, Thermosphere, Dynamics Explorer Satellites, Magnetic Poles, Periodic Variations, Solar Terrestrial Interactions, Solar Wind, Wind Velocity
Scientific paper
On the 24th November, 1982, The North-South (Bz) component of the Interplanetary Magnetic Field (IMF) became positive for a period of about 11 hours reaching a relatively large and steady value of approximately 25 nT. During this rare occurrence, the Dynamics Explorer-2 (DE-2) spacecraft was in a configuration that enabled the dynamics of both ionic and neutral species of the high latitude F region to be measured simultaneously along the track of the polar orbiting satellite. Results from two Northern (winter) polar passes of DE-2, extracted from a larger data set, are shown to illustrate the response of the neutral F region to ion drag forcing arising from a configuration of ion convection characteristics of strongly northward IMF. The measured neutral winds differ appreciably from those more commonly observed for periods of southward IMF. The multi-cellular ion drift pattern associated with positive Bz is observed to drive a similar but less structured and weaker neutral wind configuration in the winter polar cap. Major features of the ion drift pattern are mimicked by the neutral circulation but smaller scale and more irregular sturctures of ion flow are not. This is ascribed to the relatively long time constant (few hours) for momentum exchange between the ion and neutral gases. The results demonstrate that sunward flow of neutral gas can be established and maintained by ion drag in the central polar cap for positive Bz.
No associations
LandOfFree
Ion-neutral coupling in the high latitude thermosphere, part 2 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 Ion-neutral coupling in the high latitude thermosphere, part 2, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ion-neutral coupling in the high latitude thermosphere, part 2 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1834461