There are Fourier transform operations for both 1D and 2D applications in the SU package. The 1D transforms provide spectral (either amplitude or phase) information about each trace in a panel of seismic data.

The 2D transforms include the seismic F-K variety, assuming that the fast dimension of the input data is temporal, and the second dimension is spatial, and the non-seismic K1-K2 variety, in which the input is assumed to be purely spatial (x1,x2) data.

John Stockwell 2007-04-10