Observations of spread echoes from the F layer over Kodaikanal-A preliminary study
DOI:
https://doi.org/10.54302/mausam.v9i1.4691Keywords:
F-layer, Kodaikanal,, Geomagnetic activityAbstract
Occurrence of spread F echoes at Kodaikanal for a period of about one year has been analysed and diurnal and seasonal characteristics have been found to exist in the frequency of occurrence of these echoes. It has been found that the phenomenon occurs only during night-time with largest frequency between 1900 and 0400 hrs local time, While the seasonal variation is characterised by equinoctial maxima as in the case of geomagnetic activity. the day-today variations in scattering indicate a negative correlation with the degree of magnetic activity. Thus. scattering persists for largest percentage of time during comparatively quiet periods and is often altogether absent on magnetically stormy nights. The phenomenon is discussed in relation to ionospheric irregularities and radio-star scintillation.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2021 MAUSAM
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
All articles published by MAUSAM are licensed under the Creative Commons Attribution 4.0 International License. This permits anyone.
Anyone is free:
- To Share - to copy, distribute and transmit the work
- To Remix - to adapt the work.
Under the following conditions:
- Share - copy and redistribute the material in any medium or format
- Adapt - remix, transform, and build upon the material for any purpose, even
commercially.