SOHO/MDI Investigates Solar Flows Under Sunspots
SOHO/MDI performs a 'sonogram' of the sun, revealing the subsurface temperature profile around a sunspot. Red isosurfaces denote regions where the sound speed (and temperature) are higher than average while blue isosurfaces directly under the spot illustrate where the sound speed (and temperature) are lower than average.
Zoom down to and below the solar surface to see temperature isosurfaces below the sunspot.
A full view of the sun at the start of the fly-in.
A close-up view of the sunspot in the region of interest.
Just below the solar surface, we can display isosurfaces of temperature anomalies. Blue is cooler than average, red is warmer than average, and yellow is just a little warmer than average.
A view of the subsurface sunspot structure from another angle.
Slate title from video tape reads, 'SOHO/MDI Peers Beaneath Sunspots.'
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Credits
Please give credit for this item to:
NASA/Goddard Space Flight Center
Scientific Visualization Studio
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Animator
- Tom Bridgman (Global Science and Technology, Inc.)
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Scientists
- Neal Hurlburt (LMSAL)
- Junwei Zhao (Stanford University)
- Alexander G. Kosovichev (Stanford University)
- Thomas L. Duvall (NASA/GSFC)
- Philip Scherrer (Stanford University)
- A. M. Rucklidge (University of Cambridge)
Release date
This page was originally published on Tuesday, November 6, 2001.
This page was last updated on Wednesday, May 3, 2023 at 1:57 PM EDT.
Missions
This page is related to the following missions:Series
This page can be found in the following series:Related papers
Zhao, J., Kosovichev, A.G., and Duvall, T.L. 2001, Astrophysical Journal, 557, 384.
Hurlburt, N.E. and Rucklidge, A.M. 2000, Monthly Notices of the Royal Astronomical Society, 314, 793
Zhao, J., Kosovichev, A.G., and Duvall, T.L. 2001, Astrophysical Journal, 557, 384.
Hurlburt, N.E. and Rucklidge, A.M. 2000, Monthly Notices of the Royal Astronomical Society, 314, 793
Datasets used
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SOHO/MDI [SOHO: Michelson Doppler Interferometer (MDI)]
ID: 96This dataset can be found at: http://sohowww.nascom.nasa.gov
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Note: While we identify the data sets used on this page, we do not store any further details, nor the data sets themselves on our site.