The first results of photometric measurements of Ca-K plage remnants are presented. They show that during the fall of 1986 the remnants gave a significant contribution to the irradiance variations and that the averaged remnant component is less than assumed in the present UV models. The contribution of the plage remnants to the combined plage and remnant index was on average about 13 percent, and it changed with time.
Modelling solar irradiances using ground-based measurements
1991-01-01
Miscellaneous
No indication
English
Modelling solar irradiances using ground-based measurements
Elsevier | 1991
|Solar EUV irradiances and indices
Elsevier | 1989
|Long-Term Variations in Total Solar and UV Irradiances
British Library Online Contents | 1997
|Geographical differences of UV irradiances
British Library Conference Proceedings | 1995
|Variability in the solar constant from irradiances shortward of Lyman-Alpha
Online Contents | 2002
|