Speaker
Description
The extraordinary importance of the sunspot number is given by the fact that it is the longest data series available for the study of the long term behaviour of the solar activity. This is also one of the sources of its weakness because of the calibrational challenge of the datasets recorded in the large number of different time intervals. A further drawback is that it is a dimensionless parameter without direct physical meaning, a simple inventory of observed features regardless of their importance. The recent progress in the upgrade of the Debrecen sunspot databases makes it possible to achieve our goal published earlier to establish a new activity index constructed from the amount of magnetic flux in emerging active regions. This will be a genuine physical index measured in Weber. The lecture overviews the necessary calibration procedures and the preliminary status of the addressed time series by comparing it to the sunspot numbers. The planned dataset may open the possibility for the empirical assessment of the global magnetic flux amount produced during a solar cycle.
| Do you plan to attend in-person or online? | In-person |
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