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SDO/HMI survey of emerging active regions for helioseismology
H. Schunker, D. C. Braun, A. C. Birch +2
Observations from the Solar Dynamics Observatory (SDO) have the potential for allowing the helioseismic study of the formation of hundreds of active regions, which would enable us…
Structure and evolution of solar supergranulation using SDO/HMI data
Th. Roudier, M. Švanda, M. Rieutord +3
Context: Studying the motions on the solar surface is fundamental for understanding how turbulent convection transports energy and how magnetic fields are distributed across the so…
Comparison of solar horizontal velocity fields from SDO/HMI and Hinode data
Th. Roudier, M. Rieutord, V. Prat +7
The measurement of the Sun's surface motions with a high spatial and temporal resolution is still a challenge. We wish to validate horizontal velocity measurements all over the vis…
Time--distance inversions for horizontal and vertical flows on supergranular scales applied to MDI and HMI data
Michal Svanda, Hannah Schunker, Raymond Burston
We study the possibility of consistent extension of MDI full-disc helioseismic campaigns with the growing data set of HMI observations. To do so, we down-sample and filter the HMI…