Why has the file format changed, compared to previous versions?
The latest files were produced for a particular ‘customer’ (an EU consortium) who were keen to minimise data volumes. The time-based grids that I provided to them are more efficient than the space-based grids, because they eliminate the ocean grid points. The file format is described here. To access the scenario data-sets (TYN SC 1.0 and 2.0) you must unpack the raw files. You may achieve the unpacking either by the supplied fortran software (requires Unix and possibly some programming), or else by doing the unpacking yourself. See the unpacking information. Unless you unpack as specified the data you deduce will be nonsense.