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Volume 5, Issue 5, September 2016, Page: 79-86
Analysis of Sunspot Time Series During the Ascending Phase of Solar Cycle 24 Using the Wavelet Transform
Satish Kumar Kasde, Space Science Research Laboratory, Department of Physics and Electronics, Barkatullah University, Bhopal, India
Deepak Kumar Sondhiya, Department of Physics, LNCT Group of Colleges, Bhopal, India
Ashok Kumar Gwal, Space Science Research Laboratory, Department of Physics and Electronics, Barkatullah University, Bhopal, India
Received: Jul. 6, 2016;       Accepted: Jul. 18, 2016;       Published: Aug. 17, 2016
DOI: 10.11648/j.ajmp.20160505.11      View  4366      Downloads  205
Abstract
The sunspots are widely used to measure the rotational rate of solar surface. We are interested in analysis of the temporal evaluation of the short-term period present in sunspot time series (i.e. sunspot number and area) during the ascending phase of Solar Cycle 24. For the better understanding of variation in solar activity originated at different layers of the solar atmosphere with respect to sunspot cycles, we study the phase relation between sunspot numbers and sunspot areas using cross correlation analysis techniques based on extended wavelet based approaches such as continuous wavelet transform, cross-wavelet transform, and wavelet coherence. In this study we found the short-term periodicity “27 days-rotational rate of Sun” for current solar cycle 24 (January2008-May2013), which suggested that the Solar Cycle24 has minimum solar activity. We have also investigated the correlation between both parameters and identify the unusual conditions in space weather.
Keywords
Sunspots, Rotational Rate of Sun, Solar Cycle, Solar Activity, Wavelet Analysis
To cite this article
Satish Kumar Kasde, Deepak Kumar Sondhiya, Ashok Kumar Gwal, Analysis of Sunspot Time Series During the Ascending Phase of Solar Cycle 24 Using the Wavelet Transform, American Journal of Modern Physics. Vol. 5, No. 5, 2016, pp. 79-86. doi: 10.11648/j.ajmp.20160505.11
Copyright
Copyright © 2016 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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