f2gsh_Wrap

Interpolates a scalar quantity from a fixed grid to a Gaussian grid (with optional truncation) (retains metadata).

Prototype

load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"  ; This library is automatically loaded
                                                             ; from NCL V6.2.0 onward.
                                                             ; No need for user to explicitly load.

	function f2gsh_Wrap (
		grid        : numeric,  
		outdims [2] : integer,  
		twave   [1] : integer   
	)

	return_val  :  float or double

Arguments

An array of 2 or more dimensions whose rightmost two dimensions must be latitude x longitude. The values must be in ascending latitude order.

An array indicating the dimensions of the rightmost two dimensions of the output grid (outdims[0] = nlatb, outdims[1] = nlonb).

A scalar integer indicating the optional wave truncation:

twave = 0 => exact interpolation
twave > 0 => exact interpolation and triangular truncation at twave
twave < 0 => exact interpolation, triangular truncation at twave and spectral coefficient tapering (the effect is to smooth the data)

Return value

The return array's dimensions are the same as grid's dimensions, except the rightmost two dimensions, nlata and nlona, are replaced by nlatb and nlonb. The type will be double if the input is double, and float otherwise.

Description

This function is identical to f2gsh, except the return value will have metadata added based on metadata attached to grid. See the f2gsh page for full documentation and examples.