PLANETARY SCALE FLUCTUATIONS IN RADIO-WAVE ABSORPTION OBSERVED AT DELHI

Authors
SRIVASTAVA S NATH N SETTY CSGK
Citation
S. Srivastava et al., PLANETARY SCALE FLUCTUATIONS IN RADIO-WAVE ABSORPTION OBSERVED AT DELHI, Indian journal of radio & space physics, 23(3), 1994, pp. 217-219
Citations number
NO
Categorie Soggetti
Metereology & Atmospheric Sciences","Astronomy & Astrophysics
Journal title
Indian journal of radio & space physics → ACNP
ISSN journal
03678393
Volume
23
Issue
3
Year of publication
1994
Pages
217 - 219
Database
ISI
SICI code
0367-8393(1994)23:3<217:PSFIRA>2.0.ZU;2-Y
Abstract
Ionospheric radio wave absorption measurements made during June 1981-J anuary 1989 using Al technique at Delhi (28.6-degrees-N, 77.2-degrees- E) were subjected to power spectral analysis by the maximum entropy me thod. Analysis reveals a large number of periods in the range 2-40 day s in the data sets. Effects of varying levels of solar activity and se asonal effects have also been investigated and discussed.