Accession Number : ADA111640

Title :   Atmospheric Pressure and Velocity Fluctuations Near the Auroral Electrojet.

Descriptive Note : Technical rept.,

Corporate Author : AEROSPACE CORP EL SEGUNDO CA SPACE SCIENCES LAB

Personal Author(s) : Luhmann,Janet G

PDF Url : ADA111640

Report Date : 15 Jan 1982

Pagination or Media Count : 40

Abstract : The low frequency pressure and velocity perturbations caused by the temporally varying Lorentz force associated with auroral electrojet activity are modelled by calculating the disturbances generated by a two-dimensional, time-dependent current system in a gravitationally stratified, isothermal, windless atmosphere. These calculations provide information about the pattern of gravity waves around the hypothetical electrojet and give estimates of the magnitudes of near-field auroral disturbances in the middle atmosphere. It is suggested that the near-field vertical wind shears may be large enough to affect the development of air turbulence in the auroral zone. (Author)

Descriptors :   *Aurorae, *Electrojets, *Atmospheric disturbances, *Mathematical models, Perturbations, Atmospheric physics, Lorentz force, Wind shear, Vertical orientation

Subject Categories : Atmospheric Physics
      Numerical Mathematics

Distribution Statement : APPROVED FOR PUBLIC RELEASE