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Peer-reviewed

Combined Surface Flux Transport and Helioseismic Far-Side Active Region Model (FARM)

Dan Yang; Stephan G. Heinemann; Robert H. Cameron; Laurent Gizon

Solar Physics · 2024

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Summary

AbstractMaps of the magnetic field at the Sun’s surface are commonly used as boundary conditions in space-weather modeling. However, continuous observations are only available from the Earth-facing part of the Sun’s surface. One commonly used approach to mitigate the lack of far-side information is to apply a surface flux transport (SFT) model to model the evolution of the magnetic field as the Sun rotates. Helioseismology can image active regions on the far side using acoustic oscillations and hence has the potential to improve the modeled surface magnetic field. In this study, we propose a novel approach for estimating magnetic fields of active regions on the Sun’s far side based on seismic measurements and then include them into an SFT model. To calibrate the conversion from helioseismi

Source type
Peer-reviewed study
DOI
10.1007/s11207-024-02405-9
Catalogue ID
NRmo9rin9c-0vu
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