; This procedure demonstrates the indgen and findgen functions in IDL


PRO create_lat_lon

; generate a 91 element integer latitude array that extends from -90¼ to 90¼ with 2¼ grid spacing
lat = (INDGEN(91)-45)*2

; generate a 145 element floating point longitude array that extends from -180 to 180 with
; 2.5¼ grid spacing
lon = (FINDGEN(145))*2.5-180


END