Sun  ID: 2232

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.

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Visualization Credits

Tom Bridgman (GST): Lead Animator
Neal Hurlburt (LMSAL): Scientist
Junwei Zhao (Stanford University): Scientist
Alexander G. Kosovichev (Stanford University): Scientist
Thomas L. Duvall Jr. (NASA/GSFC): Scientist
Philip Scherrer (Stanford University): Scientist
A. M. Rucklidge (University of Cambridge): Scientist
Please give credit for this item to:
NASA/Goddard Space Flight Center Scientific Visualization Studio

Science Paper:
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

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Data Used:
SOHO/Michelson Doppler Interferometer (MDI) 1998/06/18
Note: While we identify the data sets used in these visualizations, we do not store any further details nor the data sets themselves on our site.

This item is part of this series:
SOHO/MDI Helioseismology

SVS >> Helioseismology
DLESE >> Space science
GCMD >> Earth Science >> Sun-earth Interactions >> Solar Activity >> Sunspots
NASA Science >> Sun

GCMD keywords can be found on the Internet with the following citation: Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version