9.0 POST-IMPLEMENTATION CHANGES
Because of problems found in the weeks following this implementation the following changes
were made to the system:
2. A substantial increase was made in the horizontal diffusion for the small-scale end of the
3. A set of changes was made to reduce (but not eliminate) the warm bias over land:
Changes (1) and (2) were tested in a parallel system at T170 resolution, while
the changes in (3) (which are not resolution-dependent) were tested at T62.
Then, the entire package was tested in the T170 parallel system from July 17
through July 21.
The map files are labeled in the form [mdd]f[hh].gif, where m=month, d=day, and hh= forecast hour, e.g., 717f12.gif is the 12-h forecast from 17 July. All forecasts originate at 00Z.