NCL Website header
NCL Home > Documentation > Functions > Spherical harmonic routines


Inverts the Laplacian (on a fixed grid) using spherical harmonics and retains metadata.


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 ilapsF_Wrap (
		zlap    : numeric,  
		zlmbda  : numeric   

	return_val [dimsizes(zlap)] :  float or double



An array of two or more dimensions containing the Laplacian values to invert. Last two dimensions must be lat and lon. Values must be in ascending latitudinal order. Grid must be global.


A constant if zlap is a two-dimensional. If zlap has three or more dimensions then must be the same size as zlap minus the rightmost two dimensions.


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