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Periodogram analysis of sunspot numbers and the relation with solar activitiesThe time series of average monthly sunspot numbers during 1900-1992 is studied by using power spectral analysis. This prediction method is used to study the sunspot periodicities relations between its, and with the other periodicities by solar activities. There are periodicities (between few days and 5 years) overwhelm on the mean solar cycle. ( 11 year cycle). These periodicities have the same relation with variations of solar constant and solar radiation reaching the Earth's atmosphere in the last solar cycle. These periods are related to the solar magnetic activity and to the modulation of solar features due to solar rotation.
Document ID
19960021338
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
Authors
Hady, Ahmed A.
(College of Technological Studies Shuwaikh, Kuwait)
Date Acquired
August 17, 2013
Publication Date
June 30, 1995
Subject Category
Solar Physics
Accession Number
96N24734
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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