Tapered truncation in g2gsh, etc.

I would like to use g2gsh and f2gsh to regrid data while reducing the
spatial resolution to T15 resolution. I would like to use the tapered
truncation in spherical harmonic space (twave <0), as this reduces
spectral ripples. However, I cannot find any documentation as to what
the taper is. Does anyone know? Is it the Sardeshmukh and Hoskins taper
that is used in exp_tapersh. If so, what exponent is used?

Thanks,

Joe Barsugli
University of Colorado
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Received on Fri Jul 21 2006 - 18:00:21 MDT