Cubed-sphere wavelets as developed by:
Simons, Loris, Nolet, Daubechies, et al.
Geophys. J. Int., 187 (2), 969–988, 2011, doi: 10.1111/j.1365-246X.2011.05190.x
which you may cite if you find any of these routines useful!
Supported by the National Science Foundation under grant EAR-1550389.