Linking the solar cycle and Earth’s climate

Authors

  • RajasriSen Jaiswal Centre for Study on Rainfall and Radio Wave Propagation, Sona College of Technology, Salem, Tamil Nadu – 636 005, India
  • Vinotha M Centre for Study on Rainfall and Radio Wave Propagation, Sona College of Technology, Salem, Tamil Nadu – 636 005, India
  • ThirumalaLakshmi K Centre for Study on Rainfall and Radio Wave Propagation, Sona College of Technology, Salem, Tamil Nadu – 636 005, India https://orcid.org/0000-0002-1645-2672
  • Siva M Centre for Study on Rainfall and Radio Wave Propagation, Sona College of Technology, Salem, Tamil Nadu – 636 005, India

DOI:

https://doi.org/10.54302/mausam.v74i3.1383

Keywords:

El Nino, Famine, La Nina, Rainfall, Sunspot number, Temperature

Abstract

 In this paper, the authors have made an effort to investigate the impact of the solar cycle on Earth’s climate in the context of rainfall and temperature over a location, on El Nino/ La Nina, and world famines. The study shows that the peak sunspot number (SSN) often occurs in pairs. Multiple peaks are also seen frequently. The La Ninas follow multiple peaks, or sometimes associated with it. The El Ninos usually follow the solar minima, though not always. This study shows that the SSN trough will occur in 2020, thereby causing El Nino during 2019-2021. The multiple SSN peak is likely to occur during 2023-2028, predicting a La-Nina during this period. Multiple SSN peaks and very high SSN values bring about famines. The study shows that the total solar irradiance (TSI) bears a strong correlation with the SSN. Besides, the cosmic ray flux decreases as the SSN and the TSI increases. The monthly and yearly variations of SSN, TSI, and temperature show increasing trends over the years, indicating increased warming as the years advance.  However, none of these parameters bears significant correlations with the temperature, either independently or together, implying that some other factors are also responsible for determining the temperature. The study shows no direct relationship between rainfall and the SSN. However, several years show a similar trend between the two. The investigation indicates a strong influence of the solar cycle on world climate.

Author Biographies

ThirumalaLakshmi K, Centre for Study on Rainfall and Radio Wave Propagation, Sona College of Technology, Salem, Tamil Nadu – 636 005, India

 K. Thirumala Lakshmi received her B.E (Electronics and Communication Engineering) from Anna University, Tuticorin, and M.E (Applied Electronics) from Anna University, Tirunelveli. Presently, she is a Junior Research Fellow at the Centre for Study in Rainfall and Radio wave Propagation, Sona College of Technology, Salem, India. Her research area includes rain-induced attenuation, image processing, algorithm development, neural networks, and fuzzy.

Siva M, Centre for Study on Rainfall and Radio Wave Propagation, Sona College of Technology, Salem, Tamil Nadu – 636 005, India

Mr. M Siva received his B.Sc (Physics) and M.Sc (Physics) from Periyar University, Salem. Presently, he is a Junior Research Fellow at the Centre for Study in Rainfall and Radio wave Propagation, Sona College of Technology, Salem, India. His research area is the study of cloud parameters.

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Published

02-01-2024

How to Cite

[1]
R. . Jaiswal, V. M, T. K, and S. M, “Linking the solar cycle and Earth’s climate”, MAUSAM, vol. 74, no. 3, pp. 607–620, Jan. 2024.

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Section

Research Papers

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