A new code for Fourier-Legendre analysis of large datasets: first results and a comparison with ring-diagram analysis

H. -P. Doerr, M. Roth, A. Zaatri +2

Fourier-Legendre decomposition (FLD) of solar Doppler imaging data is a promising method to estimate the sub-surface solar meridional flow. FLD is sensible to low-degree oscillatio…