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Dynamo Modeling: Exploring HMI/AIA Capabilities in Solar Research

This research explores how HMI/AIA data can enhance understanding of solar dynamo processes, including flux transport, magnetic helicity, and tachocline configurations. Discover the impact of HMI measurements on solar rotation and magnetohydrodynamic instabilities.

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Dynamo Modeling: Exploring HMI/AIA Capabilities in Solar Research

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  1. Dynamo Modeling:What HMI/AIA can do for us(and perhaps vice versa) Mark Miesch HAO/NCAR, JILA/CU (Sacha Brun, Juri Toomre, Matt Browning, Marc DeRosa, Ben Brown) Feb, 2006

  2. Question 1:Are Flux-transport dynamos on the right track? Courtesy M. Dikpati How can HMI help? Meridional Circulation measurements!

  3. Question 2:Where is the a-effect? How can HMI help? Estimates of flux emergence, diffusion, cancellation

  4. Question 3:What maintains the Solar Rotation? How can HMI help? Latudinal entropy/temperature variations Velocity correlations (Reynolds stresses)

  5. Question 4:Are magneto-shear instabilities operating in the tachocline? How can HMI help? Non-axisymmetric patterns in flux emergence (esp. m=1) Zonal jets

  6. Question 5:What confines the tachocline? Gough & McIntyre 1998 Brun & Zahn 2006 How can HMI help? Tachocline oscillations, structure

  7. Question 6:What is the nature of giant cells? How can HMI help? SSW, N/S downflow lanes, velocity/thermal/magnetic correlations

  8. Question 7:How does flux organize, destabilize and emerge? Courtesy Y. Fan How can HMI help? Structure below active regions: how deep do they go?

  9. Question 8:How does magnetic helicity flux through the photosphere effect the dynamo? Courtesy S. Gibson How can HMI help? Estimates of helicity flux, patterns

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