Investigations on Travelling Ionospheric Disturbances (TID'S) BY THE CW Doppler Phase-Path Sounding Array
Abstract
Travelling ionospheric disturbances in the ionized regions of the earth's atmosphere have been investigated using a CW doppler (phase-path) sounding array. A description of wave characteristics such as periods and wavelengths for medium scale TID's is given. An apparent correlation between TID's and occurrence of sporadic E was examined in the light of internal atmospheric gravity wave theory. The results of the present investigation were compared with those of earlier results. It can be concluded from this study that near the solstices, TID's in both hemispheres travel in approximately the same direction, away from the pole. Near the equinoxes, TID's in the Northern Hemisphere travel approximately in the westward direction, while those in the Southern Hemisphere travel eastward.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1970
- Accession Number
- AD0723318
Entities
People
- Ganti L. Rao