SHTSGZ

DCL:MATH2:SHTLIB: Spherical Harmonic Functions: Explanation of Subroutines

4.3.18 SHTSGZ

1.

Function

Performs inverse spectral transformation only for the zonal component by successively carrying out SHTSWZ and SHTWGZ.

2.

Definition

See SHTSWZ, SHTWGZ.

3.

Call

SHTSGZ(MM,JM,IM,ISW,S,WZ,G,WORK)

4.

Explanation of Parameters

MM (I) Input parameter. The cut-off wavenumber (M).

JM (I) Input parameter. 1/2 of the NS partition number (J).

IM (I) Input parameter. 1/2 of the EW partition number (I).

ISW (I) Input parameter. Specifies the type of transformation. (See SHTS2G.)

S (R) Input parameter. Spectral data. (For length and arrangement, see SHTNML.)

WZ (R) Output parameter. Wave data.(W⁰_(&phi)) (For length and arrangement, see SHTSWZ.)

G (R) Output parameter. Grid data. (For length and arrangement, see SHTW2G.)

WORK (R) Working area initialized by SHTINT.

5.

Notes

(a): This subroutine is equivalent to successively calling SHTSWZ and SHTWGZ.

`MM`	`(I)`	Input parameter. The cut-off wavenumber (M).
`JM`	`(I)`	Input parameter. 1/2 of the NS partition number (J).
`IM`	`(I)`	Input parameter. 1/2 of the EW partition number (I).
`ISW`	`(I)`	Input parameter. Specifies the type of transformation. (See `SHTS2G`.)
`S`	`(R)`	Input parameter. Spectral data. (For length and arrangement, see `SHTNML`.)
`WZ`	`(R)`	Output parameter. Wave data.(W⁰_(&phi)) (For length and arrangement, see `SHTSWZ`.)
`G`	`(R)`	Output parameter. Grid data. (For length and arrangement, see `SHTW2G`.)
`WORK`	`(R)`	Working area initialized by `SHTINT`.