Physics
Scientific paper
Dec 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003agufmsh42b0534c&link_type=abstract
American Geophysical Union, Fall Meeting 2003, abstract #SH42B-0534
Physics
7522 Helioseismology
Scientific paper
During the last decade, time-distance helioseismology has provided important new insight into the solar sub-photospheric structure and dynamics of sunspots, active regions, supergranular cells, and large-scale flows. These results were based either on the ray-path or on the Fresnel-zone approximations. We present inversion results of travel-time perturbations of wavepackets propagating inside the Sun, using both ray-path and Fresnel-zone kernels for real and artificial data. The ray approximation was the first approximation in time-distance helioseismology for deriving the travel-times. However new types of kernels are being developed to take into account the finite-wavelength effects of the wavepackets (such as Fresnel-zone kernels), and thus improve the resolution and accuracy of the inversions. Since many results have been obtained with the ray-path approximation, it is important to compare them with the new Fresnel-zone inversions to quantify their accuracy.
Birch Aaron C.
Couvidat Sebastien
Kosovichev Aleksandr G.
Zhao Jun
No associations
LandOfFree
Time-Distance Helioseismology: How The Inversion Results Depend On The Approximation Used does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Time-Distance Helioseismology: How The Inversion Results Depend On The Approximation Used, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Time-Distance Helioseismology: How The Inversion Results Depend On The Approximation Used will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1647432