Mid-, and long-term periodicities of interplanetary plasma parameters throughout the period (1967-2017): Case Study, the distribution of hemispheric solar activities by using the wavelet analysis
El-Taher, A., El-Borie, M., Ibrahim, S., Tayel, E. (2024). Mid-, and long-term periodicities of interplanetary plasma parameters throughout the period (1967-2017): Case Study, the distribution of hemispheric solar activities by using the wavelet analysis. EKB Journal Management System, 1(1), 53-71. doi: 10.21608/jesbsp.2024.266510.1007
Amr El-Taher; Mohamed El-Borie; Seham Ibrahim; Elsayed Tayel. "Mid-, and long-term periodicities of interplanetary plasma parameters throughout the period (1967-2017): Case Study, the distribution of hemispheric solar activities by using the wavelet analysis". EKB Journal Management System, 1, 1, 2024, 53-71. doi: 10.21608/jesbsp.2024.266510.1007
El-Taher, A., El-Borie, M., Ibrahim, S., Tayel, E. (2024). 'Mid-, and long-term periodicities of interplanetary plasma parameters throughout the period (1967-2017): Case Study, the distribution of hemispheric solar activities by using the wavelet analysis', EKB Journal Management System, 1(1), pp. 53-71. doi: 10.21608/jesbsp.2024.266510.1007
El-Taher, A., El-Borie, M., Ibrahim, S., Tayel, E. Mid-, and long-term periodicities of interplanetary plasma parameters throughout the period (1967-2017): Case Study, the distribution of hemispheric solar activities by using the wavelet analysis. EKB Journal Management System, 2024; 1(1): 53-71. doi: 10.21608/jesbsp.2024.266510.1007

Mid-, and long-term periodicities of interplanetary plasma parameters throughout the period (1967-2017): Case Study, the distribution of hemispheric solar activities by using the wavelet analysis

Journal of the Egyptian Society for Basic Sciences-Physics
Article 2, Volume 1, Issue 1, January 2024, Page 53-71  XML PDF (980.53 K)
Document Type: Original Article
DOI: 10.21608/jesbsp.2024.266510.1007
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Authors
Amr El-Taher1; Mohamed El-Borie email orcid 2; Seham Ibrahim3; Elsayed Tayel4
1physics and chemistry, faculty of education, Alexandria university
2Physics Department, Faculty of Science, Alexandria University. Alexandria, Egypt
3Physics and Chemistry Dept., Faculty of Education, Alexandria University, Alexandria, Egypt.
4Physics Dept., Faculty of Science, Alexandria University, Alexandria, Egypt.
Abstract
In this article, mid-, and long-term periodicities of interplanetary plasma parameters (B, V, n, T, and P) aaccording to the distribution of the hemispheric SSAs in solar hemispheres utilizing the wavelet analysis throughout the period 1967-2017 have been examined. The association between the SSAs and each interplanetary plasma parameter can be established if and only if both the SSAs and the daily averages of each interplanetary plasma parameter have been smoothed by a window of a 3-year running average and a particular time-lag has been applied. The solar activity cycle (~ 10.7 yr), that has almost same power, is the most prominent periodicity in BN and BS power spectra. In addition, the wavelet power spectra of SWSN and SWSS displayed a broad variety of periodicities and their temporal evolutions. The GWS of SWSS provided two significant peaks at 9.8 and 15.2-yr, as well as at 13.9- yr, for SWSN. Furthermore, the most prominent peaks are the periodicities at 9.8 and 13.9 years (9.8 and 15.2 years) for TN (TS) spectra. Additionally, the periodicity around 1.5-yr reveals an increase in power throughout the time intervals (1968-1976) and (1982-1987) for TN and (1970-1972), (1975-1983), and (1985-1993) for TS.
Keywords
solar wind parameters; interplanteraty magnetic fileld; Wavelet power spectra; hemispheric sunspot areas
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