Possible Frequency Modulation Effects Singled Out by the Fourier Vector Amplitude in a Delta-14C Yearly Series of Georgian Wines
Citation
Pierazzo, E., & Sartori, S. (1989). Possible frequency modulation effects singled out by the Fourier Vector Amplitude in a Delta-14C yearly series of Georgian wines. Radiocarbon, 31(3), 725-739.Journal
RadiocarbonDescription
From the 13th International Radiocarbon Conference held in Dubrovnik, Yugoslavia, June 20-25, 1988.Additional Links
http://radiocarbon.webhost.uits.arizona.edu/Abstract
The Delta-14C series of yearly sampled cosmogenic 14C in wines (1909-1952) was analyzed with the Fourier Vector Amplitude (FVA) method, using cyclograms as a graphic tool, to find information on periodicities imprinted by the sun. Because the high sensitivity of the FVA algorithm in detecting periodicities and their variations is emphasized by immediate visualization of its cyclograms, a suggestion has been found for a modulation event. Data are compared with a frequency modulation model, the extension of which to the long 9000-a Delta-14C series suggests a first approach to interpret the Suess wiggles.Type
Proceedingstext