Links of Terrestrial Volcanic Eruptions to Solar Activity and Solar Magnetic Field

1
Irina Vasilieva
Irina Vasilieva
2
Valentina Zharkova
Valentina Zharkova
1 Northhumbria University, UK, MAO, Ukraine

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We compare frequencies of volcanic eruptions (VEs) in the past 270 years with variations of solar activity and summary curve of eigen vectors (EVs) of the solar background magnetic field (SBMF) from the WSO synoptic magnetic maps. In the period 1868 -1950 and 1990-2020 the total numbers of volcanic eruptions are maximal during the maxima or the descending phase of the magnetic field cycles with the dominant southern polarity, and minimal during the maxima or ascending phase of the magnetic field cycles with the northern polarity. While in the earlier years (1762-1868) this link disappeared. The frequency analysis of VEs with Morlet wavelet reveals the dominant period of about 22 years and weaker periods of 10.7 and 55-70 years. Comparison of VE frequencies with the modulus summary curve (MSC) of EVs of SBMF for solar cycles after 1868 reveals a strong positive correlation (coefficient of 0.84) with the maxima of VEs occurring when the summary curve of EVs derived from the solar magnetic fields have the southern polarity, or more active southern hemisphere of the Sun, and minima when the northern one.

Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

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Not applicable for this article.

Irina Vasilieva. 2026. \u201cLinks of Terrestrial Volcanic Eruptions to Solar Activity and Solar Magnetic Field\u201d. Global Journal of Science Frontier Research - A: Physics & Space Science GJSFR-A Volume 23 (GJSFR Volume 23 Issue A3): .

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Enhanced contrast of volcanic eruptions, solar activity, and magnetic fields in space.
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GJSFR Volume 23 Issue A3
Pg. 23- 43
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Crossref Journal DOI 10.17406/GJSFR

Print ISSN 0975-5896

e-ISSN 2249-4626

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GJSFR-A Classification: (LCC): QE523.V65, QB529
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v1.2

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May 31, 2023

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English

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We compare frequencies of volcanic eruptions (VEs) in the past 270 years with variations of solar activity and summary curve of eigen vectors (EVs) of the solar background magnetic field (SBMF) from the WSO synoptic magnetic maps. In the period 1868 -1950 and 1990-2020 the total numbers of volcanic eruptions are maximal during the maxima or the descending phase of the magnetic field cycles with the dominant southern polarity, and minimal during the maxima or ascending phase of the magnetic field cycles with the northern polarity. While in the earlier years (1762-1868) this link disappeared. The frequency analysis of VEs with Morlet wavelet reveals the dominant period of about 22 years and weaker periods of 10.7 and 55-70 years. Comparison of VE frequencies with the modulus summary curve (MSC) of EVs of SBMF for solar cycles after 1868 reveals a strong positive correlation (coefficient of 0.84) with the maxima of VEs occurring when the summary curve of EVs derived from the solar magnetic fields have the southern polarity, or more active southern hemisphere of the Sun, and minima when the northern one.

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Links of Terrestrial Volcanic Eruptions to Solar Activity and Solar Magnetic Field

Irina Vasilieva
Irina Vasilieva Northhumbria University, UK, MAO, Ukraine
Valentina Zharkova
Valentina Zharkova

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