The ISWI Webinar committee, jointly with SCOSTEP/COURSE, organizes and hosts virtual seminars on topics of interest to the community. The ISWI-SCOSTEP/COURSE Online Seminars will be scheduled approximately every 2 months. The webinars are recorded and the playlist with the previous seminars, which will also include future sessions, can be accessed through the following links:
NASA page with links: https://cdaw.gsfc.nasa.gov/webinars/ISWI/
UN page with links: https://www.unoosa.org/
YouTube playlist link: https://www.youtube.com/playlist?list=PLaOqa4cng0GF3cKuj6Yz5kqG1BQ-Akkhr
The next ISWI-SCOSTEP/COURSE Online Seminar will take place July 29th, 2026, at 14:00 UTC by Prof. Dan Yang
To register for the virtual seminar, please use the webinar registration form. There is a limit of 300 participants, so please register your interest as soon as possible. The MS Teams link will be sent to registered participants ~2 days before the event.
Title: Helioseismic imaging of the Sun’s far side
Speaker: Dr. Dan Yang
Max Planck Institute for Solar System Research, Germany
Abstract:
Speaker: Dr. Dan Yang
Max Planck Institute for Solar System Research, Germany
Abstract:
Helioseismic holography can produce maps of the Sun’s far side using the Sun’s five-minute oscillations observed from the Earth-facing side. This technique is known as helioseismic far-side imaging, which enables the detection of active regions days before they rotate into view from Earth. In this talk, I will explain how far-side helioseismology works and present a direct validation using SO/PHI magnetograms of the Sun’s far side. I will then focus on our work, Combined Surface Flux Transport and Helioseismic Far-Side Active Region Model (FARM), published in Solar Physics (299, 161). In this study, collaborators and I introduce a novel method for estimating magnetic fields of far-side active regions from helioseismic measurements and incorporate the inferred magnetic fields into a surface flux transport model.