Abstract

Results of analysis of drift data for the E-region taken at Waltair over a period of 2 years are presented in this paper. The main features of diurnal and seasonal variation of drifts in the E-region at this low latitude station are compared with earlier results from high latitude stations. The 24 hourly drift vector is predominent in all seasons. This shows clockwise rotation in all seasons except summer. The 12 hourly drift vector is invariably smaller than the 24 hourly drift vector and shows clockwise rotation in all seasons. The steady component is generally directed towards SSE. The polar plots of 24 hourly and 12 hourly drift vectors show highly elliptical forms, the major axes being oriented nearly along E–W and N–S respectively. The results are compared with the winds deduced for E-region levels from S q -variations.

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