Solar Activity Changes During Prolonged Sunspot Minima as Inferred from Indian Monsoon Rainfall Variations

Autor:	T. E. Girish, S. Ambily, V. G. Haritha, C. Sunil Kumar Morais
Rok vydání:	2018
Předmět:	Sunspot media_common.quotation_subject Mode (statistics) Astronomy and Astrophysics Atmospheric sciences Asymmetry Maxima and minima Space and Planetary Science Quadrupole field Indian monsoon rainfall Solar dynamo Magnetic dipole Geology media_common
Zdroj:	Proceedings of the International Astronomical Union. 13:209-210
ISSN:	1743-9221 1743-9213
DOI:	10.1017/s1743921318001631
Popis:	We could find a new 5 year periodicity in the occurrences of peaks in sunspot activity and inferred deviations of annual Indian monsoon rainfall variations from the normal during the Maunder minimum (MM) period. This result is explained in terms of solar dynamo functioning in a different mode from normal during the MM where quadrupole field (first harmonic, 5-5.5 years) dominate over dipole field (fundamental, 11 years) causing extreme north south asymmetry in sunspot activity.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2be900c870647a3c788e5ccabe33c17d https://doi.org/10.1017/s1743921318001631 Zobrazit plný text záznamu