NCEPLIBS-sp 2.4.0
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. More...
 

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().