On the spectra of long-period oscillations of geophysical parameters
Open Access
- 1 October 1971
- journal article
- Published by Stockholm University Press in Tellus
- Vol. 23 (4-5) , 337-345
- https://doi.org/10.1111/j.2153-3490.1971.tb00580.x
Abstract
Computations were made of 21 time series spectra of long-period oscillations of meteorological elements and some geophysical parameters (annual thicknesses of glacial and clastic lake varves, evaporite varves, tree-ring indices). Jackson-Poussin-Vallée kernel was used as a filter. In all the computed spectra, 11-and 22-year energetic components are absent, hence there is no relation with solar activity parameters. The time spectra in the long-period region are approximately similar. An attempt is made to construct a universal curve that describes time spectra of very far-distant geological eras—from Paleozoic (Permian and Carbonic periods) and Cenozoic time (Tertiary-Pleistocene and Quaternary periods) till Recent time. DOI: 10.1111/j.2153-3490.1971.tb00580.xKeywords
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