Atmospheric Pressure and Velocity Fluctuations Near the Auroral Electrojet.
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 15, 1982
- Accession Number
- ADA111640
Entities
People
- Janet G. Luhmann
Organizations
- The Aerospace Corporation