NCEPLIBS-ip 5.2.0
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spfftpt.f File Reference

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.
 

Detailed Description

Compute fourier transform to gridpoints.

Author
Iredell
Date
96-02-20

Definition in file spfftpt.f.

Function/Subroutine Documentation

◆ spfftpt()

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.

Note
This subprogram is thread-safe.
Parameters
MFourier wavenumber truncation
Nnumber of gridpoints
INCWfirst dimension of the complex amplitude array (INCW >= M+1)
INCGfirst dimension of the gridpoint array (INCG >= N)
KMAXnumber of Fourier fields
RLONgrid longitudes in degrees
WFourier amplitudes
Ggridpoint values
Author
Iredell
Date
96-02-20

Definition at line 22 of file spfftpt.f.

Referenced by sptgpt(), sptgptsd(), sptgptv(), and sptgptvd().