Power spectrum analysis of geomagnetic indices | Zendy

R. P. Kane | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Power spectrum analysis of geomagnetic indices

Author(s) -

R. P. Kane

Publication year - 1986

Publication title -

journal of earth system science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.444

H-Index - 52

eISSN - 0973-774X

pISSN - 0253-4126

DOI - 10.1007/bf03029168

Subject(s) - earth's magnetic field , neutron monitor , solar rotation , sunspot , spectral density , spectral analysis , sunspot number , physics , cosmic ray , astrophysics , spectral line , harmonics , atmospheric sciences , mathematics , meteorology , solar cycle , climatology , solar physics , geology , solar wind , statistics , astronomy , magnetic field , spectroscopy , quantum mechanics , voltage

Using the method of maximum entropy spectral analysis (MESA) by Burg and the least-squares linear prediction (lslp) (also calledFABNE) by Barrodale and Erickson, the spectra of geomagnetic indices Ap, AN, AS, AE, AU, AL, Dst and cosmic ray neutron intensity at Deep River are obtained for 1965 and 1969 from daily means and for longer periods from monthly means. A large number of peaks of periodicities from 2 days to several years is obtained, many of which are shown by all the indices. Some of these are probably harmonics of the 27 days solar rotation period and the 20–22 years double sunspot cycle period. Comparison is made with results of earlier workers who reported fewer peaks.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research