Reanalysis 1/2 pgb			Portable version 1.0
makes pressure level grib files


Input for program is ieee f77 spectral sigma files.  (Note sigma
data on Cray is in COS blocked files using IBM type numbers.
Programs are available to convert these files to f77 ieee data.)

Note: this version of the post can read the current operational
sigma files but will produce slightly different results.  (For
example, the filtering has changed.)


The program can either be compiled 4-byte reals and integers or
8-byte reals and integers if the compiler supports it.

Platforms tested:

   linux: 
	current version of g77 (need to increase stack size to run)
	f90 (vast f90 translator)

   sgi:
	f90

   hp:
	f77

   aix:
	xlf
         

The code was originally written to support threaded cray code but
in this port, the threading is ignored.  Threading is not essential
as processing is quite quick (less than 7 seconds for a T62 file
on my home PC, a Celeron 464MHz).

