Variations of solar irradiance
Abstract
Since 1978 satellite based radiometers have been measuring changes in solar irradiance, so that the available record now covers almost 3 solar cycles. In addition, spectral irradiance has been measured with increasing precision time has passed. These data have uncoverd a rich structure of the variable solar irradiance. In addition, the physical understanding of irradiance variations and the detailed reconstruction of this quantity (both for the time in which observations are available and for earlier times) have made great strides over the last years. It is now possible to reproduce both the total and spectral irradiance variations with very high precision. In this talk an overview of the measurements and the modelling of total and spectral irradiance variations is given, highlighting in particular the progress of the last few years.
- Publication:
-
IAU Joint Discussion
- Pub Date:
- August 2006
- Bibcode:
- 2006IAUJD...8E..43S