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DETECTION OF COHERENT STRUCTURES IN PHOTOSPHERIC TURBULENT FLOWS
2014
Astrophysical Journal
We study coherent structures in solar photospheric flows in a plage in the vicinity of the active region AR 10930 using the horizontal velocity data derived from Hinode/SOT magnetograms. Eulerian and Lagrangian coherent structures are detected by computing the Q-criterion and the finite-time Lyapunov exponents of the velocity field, respectively. Our analysis indicates that, on average, the deformation Eulerian coherent structures dominate over the vortical Eulerian coherent structures in the
doi:10.1088/0004-637x/786/1/51
fatcat:oepzn4jp55dqpmi24erwadjxq4