NCL Home > Documentation > Functions > Lat/Lon functions


Adds two fake pole points (90S and 90N) to the leftmost dimension of the given data.


load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"      ; These four libraries are automatically
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"       ; loaded from NCL V6.4.0 onward.
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"   ; No need for user to explicitly load.
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/shea_util.ncl"

	function add90LatY (
		Data [*][*] : numeric   

	return_val [*][*] :  typeof(Data)



A 2-dimensional array with latitude as the leftmost dimension.

Return value

The results are returned in an array of the same type as Data, and with dimensions ny+2 x nx where ny x nx are the dimensions of Data.


This function adds two fake pole points (i.e. 90S and 90N) to data where there are no pole points to get nice round -90 (90S) and 90 (90N) points. It's assumed that the "y" (leftmost dimension) coordinate is latitude. Missing values are assigned to the data for these added points.

See Also



For an application example, see: