Each 11-years cycle of solar activity consists of two processes with different physical properties. The variety of shapes of the 11-years curves depends on the way these processes overlap. All events in the photosphere, chromosphere and corona, and all kinds of emissions like the radio-and corpuscu
Gleissberg cycle of solar activity over the last 7000 years
โ Scribed by L.H. Ma
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 502 KB
- Volume
- 14
- Category
- Article
- ISSN
- 1384-1076
No coin nor oath required. For personal study only.
โฆ Synopsis
Long-term variations of solar activity significantly affect terrestrial phenomena. Studies have shown cyclic components in solar activity and geophysical phenomena (e.g., the Schwabe, Hale, Gleissberg, and Suess cycles, and a cycle of about 2300 years). In this paper, the wavelet technique is employed to investigate the Gleissberg cycle in solar variations during 5000 BC-1995 AD. Analysis shows time-variable characteristics in the Gleissberg solar cycle over the period; no obvious correlation between the Gleissberg and Suess cycles has been found.
๐ SIMILAR VOLUMES
A total number of 460 DCIM events, single or groups, were observed during the period of October 1980 to December 1984 with the Weissenau spectrograph as dynamic film spectra. Several parameters describing these data were evaluated statistically and the main features were discussed in context with as