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Specifies the data required for the application: it requires divergence for velocity potential and vorticity for stream function (both in spherical harmonics representation).
Truncation
Specifies the truncation to be applied to the spherical harmonics input data prior to transformation to gridpoint space.
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| Mathdisplay |
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\exp(-(\frac{n\times (n+1)}{fltc\times (fltc+1)})^{mfiltexp}) |
where,
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This filter is roughly equivalent to applying the
| Mathinline |
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\nabla^{2 x\times mfilteexp} |
operator in grid point space.
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