grid: /X (degree_east) ordered (21.855E) to (51.455E) by 0.05 N= 593 pts :grid
grid: /Y (degree_north) ordered (11.775S) to (23.125N) by 0.05 N= 699 pts :grid
grid: /T (days since 1960-01-01) ordered [ (1-10 Jan 1981) (11-20 Jan 1981) (21-31 Jan 1981) (1-10 Feb 1981) (11-20 Feb 1981) (21-28 Feb 1981) (1-10 Mar 1981) (11-20 Mar 1981) (21-31 Mar 1981) (1-10 Apr 1981) (11-20 Apr 1981) (21-30 Apr 1981) (1-10 May 1981) (11-20 May 1981) (21-31 May 1981) (1-10 Jun 1981) (11-20 Jun 1981) (21-30 Jun 1981) (1-10 Jul 1981) (11-20 Jul 1981) (21-31 Jul 1981) (1-10 Aug 1981) (11-20 Aug 1981) (21-31 Aug 1981) (1-10 Sep 1981) (11-20 Sep 1981) (21-30 Sep 1981) (1-10 Oct 1981) (11-20 Oct 1981) (21-31 Oct 1981) (1-10 Nov 1981) (11-20 Nov 1981) (21-30 Nov 1981) (1-10 Dec 1981) (11-20 Dec 1981) (21-31 Dec 1981)] :grid