Summary - PowerPoint PPT Presentation

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Summary

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Supergranulation, and other convective scale realistic ... NS lanes. Latitudinal variations. Thermal/velocity/magnetic correlations. Torsional oscillations ... – PowerPoint PPT presentation

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Slides: 6
Provided by: alexanderk
Learn more at: http://hmi.stanford.edu
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Title: Summary


1
Summary
2
Two directions in modeling
  • Adopting physical (realistic) models
  • Creating artificial data sets with simplified
    physics

3
What modelers do
  • Non-linear realistic simulations 48x48x20 Mm
    50x50x45 Mm
  • Supergranulation, and other convective scale
    realistic artificial data time-distance
  • Emerging flux 23 Mm, very close to the surface
    (f-modes ?)
  • High-resolution 6Mm, 6 km resolution
  • Global simulations how to couple to near-surface
    simulations (SSW maps) narrow the gap to the
    dynamo models.
  • Links to HMI
  • Meridional circulation
  • NS lanes
  • Latitudinal variations
  • Thermal/velocity/magnetic correlations
  • Torsional oscillations
  • Artificial data
  • Acoustic waves on sphere
  • Acoustic waves in box
  • Full Navier-Stokes

4
What observers want
  • Time-distance
  • Improve power distribution
  • Magnetic field sunspot areas !
  • Large-scale flows
  • Sensitivity kernels from simulations testing
    approximations
  • Rings
  • Line profile modeling - non-Lorentzian
  • 20-200 Mm depth 16 Mm, 8-24 hours
  • Complicated flow fields
  • Non-uniform amplitude distribution due to
    magnetic field
  • Holography
  • Acoustic emission sources high frequencies
  • Modeling the far-side signal
  • Artificial data wave physics understanding

5
Wave interaction with sunspots
Courtesy E.Khomenko
Need to continue work of K.Julien, C.Rosenthal,
2000
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