Equatorial electrojet parameters and the relevance of Electromagnetic Drifts (EMD) over Thumba

Swamy, A.C.B. (1992) Equatorial electrojet parameters and the relevance of Electromagnetic Drifts (EMD) over Thumba. Astrophysics and Space Science, 191 (2). pp. 203-211.

Full text not available from this repository. (Request a copy)
Official URL: https://doi.org/10.1007/BF00644769


The thermal imbalance in the E-region heights is inescapable and an undisputed fact. The equatorial electrojet parameters are being evaluated for an Indian Equatorial station of Thumba, making use of the observed electron density, electron temperature, and current density profiles for two rocket flights on 3 March, 1973 and 7 April, 1972 around local noon, corresponding to low and medium solar active conditions. The computed Joule heating due to Equatorial Electrojet Current (EEC) does not account for the observed difference between the electron and neutral gas temperatures. The discrepancy of about 6 km in the peaks of the observed and computed current density profiles may be attributed to the presence of the Electromagnetic Drifts (EMD). In order to see whether or not EMD plays an important role, the photoionization balance between production and loss rates have been computed by making use of the latest available solar flux and cross sections and chemical reaction rate constants for the appropriate solar epoch conditions including the transport term due to EMD. There is an excellent agreement between the observed and computed electron density profiles indicating its relevance.

Item Type: Article
Subjects: D Physical Science > Physics
Divisions: Department of > Physics
Depositing User: Users 23 not found.
Date Deposited: 15 May 2021 05:15
Last Modified: 15 May 2021 05:15
URI: http://eprints.uni-mysore.ac.in/id/eprint/16440

Actions (login required)

View Item View Item