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NCEPLIBS-ip 5.2.0
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Compute fourier transform to gridpoints. More...
Go to the source code of this file.
Functions/Subroutines | |
| subroutine | spfftpt (m, n, incw, incg, kmax, rlon, w, g) |
| This subprogram computes a slow Fourier transform from Fourier space to a set of gridpoints. | |
| subroutine spfftpt | ( | integer, intent(in) | m, |
| integer, intent(in) | n, | ||
| integer, intent(in) | incw, | ||
| integer, intent(in) | incg, | ||
| integer, intent(in) | kmax, | ||
| real, dimension(n), intent(in) | rlon, | ||
| real, dimension(2*incw,kmax), intent(in) | w, | ||
| real, dimension(incg,kmax), intent(out) | g | ||
| ) |
This subprogram computes a slow Fourier transform from Fourier space to a set of gridpoints.
| M | Fourier wavenumber truncation |
| N | number of gridpoints |
| INCW | first dimension of the complex amplitude array (INCW >= M+1) |
| INCG | first dimension of the gridpoint array (INCG >= N) |
| KMAX | number of Fourier fields |
| RLON | grid longitudes in degrees |
| W | Fourier amplitudes |
| G | gridpoint values |
Definition at line 22 of file spfftpt.f.
Referenced by sptgpt(), sptgptsd(), sptgptv(), and sptgptvd().