Hostname: page-component-745bb68f8f-s22k5 Total loading time: 0 Render date: 2025-01-15T01:00:53.576Z Has data issue: false hasContentIssue false
  • English
  • Français

The Downturn in Solar Activity during Solar Cycles 5 and 6

Published online by Cambridge University Press:  25 April 2016

J. O. Murphy
J. O. Murphy*
Affiliation:
Department of Mathematics, Monash University, Clayton Vic 3168
Get access Rights & Permissions [Opens in a new window]

Abstract

The atmospheric 14C record, the corresponding WM values derived from a carbon reservoir model, auroral numbers and the Zurich relative annual sunspot numbers all demonstrate a substantial downturn in solar activity for the duration of solar cycles 5 and 6. This reduction is also imbedded in some dendrochronological proxy data sets, which describe an annual index radial growth rate for trees at high-altitude sites. A significant lagged correlation can exist between tree-ring indices and the 11–year solar cycle during periods of high solar activity, a feature which is not evident during quiescent periods.

Type
Solar & Solar System
Information
Publications of the Astronomical Society of Australia , Volume 9 , Issue 2 , 1991 , pp. 330 - 331
Copyright
Copyright © Astronomical Society of Australia 1991

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Dansgaard, W., Johnsen, S. J., Moller, J. and Langway, C., 1969, Science, 166, 377.CrossRefGoogle Scholar
Gleissberg, W., 1971, Solar Phys., 21, 242.CrossRefGoogle Scholar
La Marche, V. C., Holmes, R. L., Dunwiddie, P. W. and Drew, L. G., 1979, Tree-Ring Chronologies of the Southern Hemisphere: 2. Chile, Chronology Series V, Laboratory of Tree Ring Research, Univ. of Arizona.Google Scholar
Mori, Y., 1981, J. Climat., 1, 345.CrossRefGoogle Scholar
Raisbeck, G. H., Yiou, F., Bourles, D., Lorius, C., Jouzeb, J. and Barkov, N. I., 1987, Nature, 326, 273.CrossRefGoogle Scholar
Sonett, C. P., 1983, J. Geophys. Res., 88, No. A4, 3225.CrossRefGoogle Scholar
Stuiver, M. and Quay, P. D., 1980, Science, 207, No. 4426, 11.CrossRefGoogle Scholar