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| Paper: |
Time-Distance Helioseismic Imaging of a Numerically Simulated Solar Tachocline |
| Volume: |
416, Solar-Stellar Dynamos as Revealed by Helio- and Asteroseismology: GONG 2008/SOHO 21 |
| Page: |
25 |
| Authors: |
Zhao, J.; Hartlep, T.; Kosovichev, A. G.; Mansour N. N. |
| Abstract: |
The solar tachocline, located near the bottom of the convection
zone, is a very important region for solar dynamics and the solar
dynamo. We develop a time-distance helioseismology technique,
including both surface- and deep-focusing measurements, together
with inversions, to derive the interior image of the sound speed
perturbation at the tachocline with a latitudinal dependence. We
test the technique on numerically simulated global wavefields and
find that the technique is able to recover the major features that
are preset in the numerical model, though a bit more widespread
into the deeper interior. This measurement and inversion technique
will be applied to MDI observations to derive the structures of
solar tachocline.
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