Semikinetic modeling and observations of high-latitude plasma outflow. Annual progress report, 1 January-31 December 1994

Technical Report · Sun Jan 01 04:00:00 EST 1995

OSTI ID:42791

Horwitz, J L

In one of the most exciting areas of progress, the authors have now developed a dynamic semikinetic model for examining the synergistic effects of waves and magnetospheric hot plasma populations on the outflowing ionospheric plasma. They have done this by imposing hot biMaxwellian ion and electron distributions at the top of their auroral simulation flux tube (4 R{sub e}), as well as a spectrum of waves with altitude which perpendicularly heats the ionospheric ions. They have also addressed the quasi-statistical properties of out flowing O(+) through bulk parameter analysis of DE-1/RIMS observations when DE-1 was in the midaltitude polar cap magnetosphere. A very exciting paper which was both submitted and appeared during this period in JGR concerned the centrifugal acceleration effect on the polar wind. During this year, they also developed the extension of their GSK code to include the lower ionosphere and associated processes. Finally, perhaps the most exciting project currently is a study of F-region upflows using a modification of the FLIP ionospheric fluid dynamics model of Richards and Torr to allow for the effects of soft electron precipitation ionization and convection-driven ion heating, and performed comparisons with satellite and radar data. A list of reference papers that have been published is listed.

• Research Organization: Alabama Univ., Huntsville, AL (United States)
• OSTI ID: 42791
• Report Number(s): N--95-23008; NASA-CR--197403; NAS--1.26:197403; CNN: NAGW-1554
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
COMPUTERIZED SIMULATION
EARTH MAGNETOSPHERE
ELECTRON PRECIPITATION
F REGION
IONOSPHERE
KINETIC EQUATIONS
MAGNETIC FLUX
OXYGEN
PLASMA DRIFT
PLASMA HEATING
POLAR REGIONS
PROGRESS REPORT