an outline showing all sub-datasets and variables contained in this dataset
grid: /T (57.2957795130823 radian-1 north second-1) ordered (240.5 57.2957795130823 radian-1 north second-1) to (655.5 57.2957795130823 radian-1 north second-1) by 5.6599274E-06 N= 73322496 pts :grid