Upper Atmosphere Neutral and Plasma Density Modeling
Abstract
The neutral density studies described in this report concentrate on specifying tidal aspects of the thermosphere. Firstly, HMEs were used to describe the variations in a database of tidal measurements, providing improved thermospheric specification. Similar techniques were used to derive diurnal and semi-diurnal density corrections to the Grove/MSIS83 model currently used by the AWS. Finally, the variations of satellite -based (SETA) wind and density measurements in the 170-220km high latitude region have been described Plasma modeling work described in this report includes both the development and application of semi-empirical ionospheric models and the application of theoretical models. A simple model was derived for storm-time middle-latitude perturbation in TEC. A simple model of slab thickness was developed leading to a simple successful model of TEC. Slab thickness was also used as a constraint in a new profile formalism that was both validated against an ICS database and extended into a SLIM-like profile model. The PLIM was applied in diagnostic modeling studies to investigate the nature of diurnal double maxima and to derive relationships between ionospheric parameters and satellite-based UV nightglow measurements providing additional ionospheric monitoring at AWS.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 31, 1993
- Accession Number
- ADA274768
Entities
People
- Jeffrey M. Forbes
- Matthew Fox
Organizations
- Boston University