Whistler evidence of downward movement of ionization at low latitudes

Authors

  • S. K. DI.KSHIT Meteorological Office, Pune

DOI:

https://doi.org/10.54302/mausam.v35i4.2267

Abstract

The entire path of whistlers observed at our low latitude field station Nainital lies well within the upper boundary of the F-region. Large number of whistlers recorded during nighttime at Nainital show a smooth decrease in dispersion with time. This decrease in dispersion is interpreted in terms of corresponding decrease in the electron content of tubes of ionization. The computed result shows a downward flux of ionization at the base level of 500 km to be in the order of 2.8 X 108 electrons /cm2/sec.

 

It is also shown that the ambipolar diffusion alone cannot explain the transport of ionization in the topside F-region at low latitudes but some other processes such as E x B drifts are also important.

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Published

1984-10-01

Issue

Vol. 35 No. 4 (1984): MAUSAM

Section

Shorter Contribution

Categories

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How to Cite

[1]
“Whistler evidence of downward movement of ionization at low latitudes”, MAUSAM, vol. 35, no. 4, pp. 521–524, Oct. 1984, doi: 10.54302/mausam.v35i4.2267.