IIA Institutional Repository

Doppler frequency fluctuations of lower thermospheric reflections in the equatorial electrojet region

Show simple item record

dc.contributor.author Sastri, J. H
dc.contributor.author Ramesh, K. B
dc.contributor.author Rao, J. V. S. V
dc.date.accessioned 2008-08-05T12:01:38Z
dc.date.available 2008-08-05T12:01:38Z
dc.date.issued 1991-07
dc.identifier.citation Journal of Atmospheric and Terrestrial Physics , Vol. 53, No.6 - 7, pp. 567 - 576 en
dc.identifier.issn 0021-9169
dc.identifier.uri http://hdl.handle.net/2248/3031
dc.description Restricted Access
dc.description.abstract The origin of short-period fluctuations from Doppler frequency-shift (P) data is investigated by examining their quantitative relationships with ambient electrojet strength and associated ionospheric conditions. The wave activity from 30-300 s is computed in terms of variations in P as synthesized through reverse FFT. P is found to vary linearly with ambient electrojet strength, and the Doppler fluctuations in the 30-300-s range tend to stop during partial or total counter-electrojet conditions. The highest sensitivity to changes in electrojet strength is noted in the 30-120-s region, and the spectral content of P fluctuations is dominated by the 120-210-s and 210-300-s subbands. The primary source of the short-period fluctuations in P data from the lower F-region reflections near the dip equator is the turbulent state of the diurnal electrojet. en
dc.format.extent 3894 bytes
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher Elsevier en
dc.subject Doppler effect en
dc.subject Equatorial electrojet en
dc.subject F Region en
dc.subject Thermosphere en
dc.subject Wave propagation en
dc.subject Gravity waves en
dc.subject High frequencies en
dc.subject Plasma density en
dc.subject Plasma frequencies en
dc.subject Refractivity en
dc.title Doppler frequency fluctuations of lower thermospheric reflections in the equatorial electrojet region en
dc.type Article en

Files in this item

This item appears in the following Collection(s)

Show simple item record

Search DSpace


My Account