Sporadic-E and atmospheric pressure waves

Shrrstha K.L. (1971) Sporadic-E and atmospheric pressure waves. Journal of Atmospheric and Terrestrial Physics, 33 2: . doi:10.1016/0021-9169(71)90196-6

Author Shrrstha K.L.
Title Sporadic-E and atmospheric pressure waves
Journal name Journal of Atmospheric and Terrestrial Physics
ISSN 0021-9169
Publication date 1971-01-01
Sub-type Article (original research)
DOI 10.1016/0021-9169(71)90196-6
Volume 33
Issue 2
Total pages 1
Subject 1902 Film, Television and Digital Media
1908 Geophysics
Abstract It is shown that the phenomena of sporadic-E ionization, cold fronts and microbarometric activity are related. The method of superimposed epoch applied to sporadic-E parameters indicated that on the frontal days sporadic-E tends to occur more frequently and with higher critical frequency than for the 10 preceding and 10 following days. No such effects were observed in the case of the blanketing frequency of sporadic-E, z.hfl;bEs. The data used are for Brisbane and cover a period of almost two years. Generation of atmospheric waves in the frontal region appears to cause the enhancement of microbarometric oscillations. A part of this wave energy leaking to ionospheric heights is suggested as the possible cause of the enhancement of sporadic-E. It is not clear whether the wind shear provided by the waves themselves, or the turbulence they generated, was responsible for the sporadic-E enhancement. No effect of geomagnetic activity on the frequency of occurrence and the critical frequency of sporadic-E, for the chosen period, is discernible.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
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Created: Tue, 14 Jun 2016, 15:34:28 EST by System User