Two-Dimensional Field Smoothing
Fast Fourier Transform (FFT) of a 2-d Gridded Field
Wrapper Functions for kernel2dsmooth
Create a Kernel Matrix
Convolution Smooth on a 2-d Field.
Two-dimensional Field Smoothing
Perform two-dimensional smoothing for spatial fields using FFT and the convolution theorem (see Gilleland 2013, <doi:10.5065/D61834G2>).