NCEPLIBS-sp
2.5.0
|
Analyze spectral from Fourier. More...
Go to the source code of this file.
Functions/Subroutines | |
subroutine | spanaly (I, M, IM, IX, NC, NCTOP, KM, WGT, CLAT, PLN, PLNTOP, MP, F, SPC, SPCTOP) |
Analyzes spectral coefficients from Fourier coefficients for a latitude pair (Northern and Southern hemispheres). More... | |
Analyze spectral from Fourier.
Date | Programmer | Comments |
---|---|---|
91-10-31 | Mark Iredell | Initial. |
94-08-01 | Mark Iredell | Moved zonal wavenumber loop inside. |
1998-12-15 | Iredell | Openmp directives inserted. |
Definition in file spanaly.f.
subroutine spanaly | ( | I, | |
M, | |||
IM, | |||
IX, | |||
NC, | |||
NCTOP, | |||
KM, | |||
WGT, | |||
CLAT, | |||
real, dimension((m+1)*((i+1)*m+2)/2) | PLN, | ||
real, dimension(m+1) | PLNTOP, | ||
integer, dimension(km) | MP, | ||
real, dimension(ix,2,km) | F, | ||
real, dimension(nc,km) | SPC, | ||
real, dimension(nctop,km) | SPCTOP | ||
) |
Analyzes spectral coefficients from Fourier coefficients for a latitude pair (Northern and Southern hemispheres).
Vector components are multiplied by cosine of latitude.
I | spectral domain shape (0 for triangular, 1 for rhomboidal) |
M | spectral truncation |
IM | even number of Fourier coefficients |
IX | dimension of Fourier coefficients (IX>=IM+2) |
NC | dimension of spectral coefficients (NC>=(M+1)*((I+1)*M+2)) |
NCTOP | dimension of spectral coefficients over top (NCTOP>=2*(M+1)) |
KM | number of fields |
WGT | Gaussian weight |
CLAT | cosine of latitude |
PLN | Legendre polynomials |
PLNTOP | Legendre polynomial over top |
MP | identifiers (0 for scalar, 1 for vector) |
F | Fourier coefficients combined |
SPC | spectral coefficients |
SPCTOP | spectral coefficients over top |
Definition at line 35 of file spanaly.f.
Referenced by sptranf1().