Tag Archives: time-distance

36. Application of Mutual Information Methods in Time-Distance Helioseismology

Contributed by Dustin Keys. Posted on February 18, 2015

What could be common between solar atmosphere and information exchange in communicating systems? Well, this is all about how information is transferred from point A to point B. This work represents a proof-of-concept application of methods of mutual information (MI) to helioseismology.

12. Analyzing 60,000 Supergranules to Determine their Subsurface Flow Profile

Contributed by Tom Duvall. Posted on April 29, 2014

Analysis of a large number of supergranules observed with HMI and simulations with a convectively stabilized solar model imply that the average supergranular cell has a peak upflow of 240 m s-1 at a depth of 2.3 Mm and a corresponding peak outward horizontal flow of 700 m s-1 at a depth of 1.6 Mm.