Folder /data_5arcmin contains grid data at the lower resolution of 5 arc-min.
The grids were derived from applying 5x5 boxmeans to the 1 arc-min grids.
The storage is the same as in case of the 1 arc-min grids. The 5 arc-min grids 
contain 2,160 x 4,320 data points, are 18 MB in size and extend from
 -90+5/120 deg to  +90-5/120 deg in latitude direction, and from
-180+5/120 deg to +180-5/120 deg in longitude direction.

The SHCs available in folder /data_5arcmin/SHCs_to2160 are simple truncations 
of the degree-10,800 files to degree 2,160.