Physics
Scientific paper
Dec 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufmsh11c0731p&link_type=abstract
American Geophysical Union, Fall Meeting 2001, abstract #SH11C-0731
Physics
1650 Solar Variability, 7524 Magnetic Fields, 7536 Solar Activity Cycle (2162), 7538 Solar Irradiance
Scientific paper
In this paper we show the relation between solar total and UV irradiance and magnetic field variations. Comparison of the multi-decade long irradiance and magnetic field measurements indicates that the shape and magnitude of irradiance variations are different from that of magnetic indices. Specifically, while magnetic indices show that solar cycle 23 is weaker than the two previous cycles, the long-term variation of total solar irradiance within the last three solar cycles is rather symmetrical, showing that its maximum and minimum levels were about the same within their measuring uncertainties. Study of UV irradiance variations also shows that UV irradiance is higher at the maximum of cycle 23 than magnetic indices, such as sunspot number, the full disk magnetic flux, and faculae indices. The long-term irradiance data bases are compared with the Kitt Peak full disk magnetic field and the Wilcox polar magnetic field measurements as well as photometric measurements of sunspots and faculae.
Arge N.
Chapman Gary
Floyd Linton E.
Pap Judit M.
Turmon Michael
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