How Quantitative Diagnostics Meaningfully Enhance the Level of Complexity in 
the Interpretation of Solar Eruptions

Georgoulis, Manolis K.; Liu, Yang; Welsch, Brian T.; Thalmann, Julia K.; Liokati, Evangelia; Guo, Yang; Moraitis, Kostas; Nindos, Alexander; Pariat, Etienne; Park, Sung-Hong; Patsourakos, Spiros; Valori, Gherardo

doi:10.57757/IUGG23-3123

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How Quantitative Diagnostics Meaningfully Enhance the Level of Complexity in the Interpretation of Solar Eruptions

Authors

Georgoulis, Manolis K.
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Liu, Yang
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Welsch, Brian T.
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Thalmann, Julia K.
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Liokati, Evangelia
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Guo, Yang
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Moraitis, Kostas
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Nindos, Alexander
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Pariat, Etienne
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Park, Sung-Hong
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Patsourakos, Spiros
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Valori, Gherardo
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

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Citation

Georgoulis, M. K., Liu, Y., Welsch, B. T., Thalmann, J. K., Liokati, E., Guo, Y., Moraitis, K., Nindos, A., Pariat, E., Park, S.-H., Patsourakos, S., Valori, G. (2023): How Quantitative Diagnostics Meaningfully Enhance the Level of Complexity in the Interpretation of Solar Eruptions, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-3123

Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020382

Abstract

We argue that, to physically understand the most energetic solar eruptions, obtaining quantitative and meaningful diagnostics of evolving solar active regions is equally important to modeling active regions, either in fully synthetic or in data-driven settings. We review a series of works advocating for two fundamental physical quantities to monitor, namely, magnetic energy and (relative) magnetic helicity. While there are different ways to monitor the evolution of active-region magnetic energy (particularly its electric current-driven, “free” term) and relative helicity, recent works show that (i) different but complementary methods may lead to benefits in understanding and (ii) monitoring any of the two parameters in tandem can lead to either oversimplifications of the eruption process or, plainly, to missing physics. Temporal evolution can also be intriguing when the twist parameter is involved and, in fact, we show results from a very recent study that clearly call for an increased level of sophistication in the interpretation of the eruption process, corroborating previous qualitative assessments. If understood, the effect seen could potentially lead to one of the clearest eruption precursors to date.