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dc.contributor.authorReddy, R S-
dc.contributor.authorMurty, BH V Ramana-
dc.identifier.issn0975-105X (Online); 0367-8393 (Print)-
dc.description.abstractAn attempt is made to examine short term periodicities, if any, in the sunspot activity and rainfall. The daily mean relative sunspot numbers for July-Sep. during 1961-70 and the daily sunspot means for July-Sep. 1889-1938, as well as the rainfall series of Tamil Nadu for July-Sep. during 1961-70 have been analyzed by power spectrum. The study has suggested that the sunspot activity and the rainfall contain a concurrent 30-day periodicity which is highly significant during the southwest monsoon period (July-Sep.) when the sun remains at all times in the northern hemisphere.en_US
dc.publisherNISCAIR-CSIR, Indiaen_US
dc.rights CC Attribution-Noncommercial-No Derivative Works 2.5 Indiaen_US
dc.sourceIJRSP Vol.07(4) [August 1978]en_US
dc.title30-Day Periodicity in Sunspot Activity & Rainfallen_US
Appears in Collections:IJRSP Vol.07(4) [August 1978]

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