M. CHEN:
As advertised, here is the latest version of the GEM wind model
which should run every trackfile given to it regardless of the
value of the holland B parameter.

To compile this latest version of the wind model,
place ALL of the modules, obtained from AOML's ftp site
in the directory: hrd/pub/soukup/MODEL/MODULES, into a
empty working directory on your machine.


Invoke IDL and compile the modules in the following order:
 
gemfplex.pro  gemf.pro

track.pro thinner.pro

suv.pro vghgen.pro usg.pro dus.pro

fixshots15.pro mnrdu.pro mnrdsg.pro rsdu.pro rsdsg.pro udvs.prp sgdvs.pro

pkwinds.pro reach.pro lltoxy.pro zmar2zot.pro

while this is being done, all files included in the distribution
with the suffix .m will be automatically compiled into whichever
of the above procedures calls them.

At this point you should test the program by
typing at the IDL> prompt, the following
syntax:


IDL> kinc=15 & flcnt=0   (cr)
IDL> gemfplex,kinc,flcnt  (cr)


after which the program will commence running using
the supplied trackfile "g_trackfile" which contains
exactly one trackfile.

after the IDL> prompt returns, generate an executable
by typing after the prompt:

IDL> save,/routines,filename='gemf.exe'  (cr)
IDL> exit  (cr)

Execution is now complete and your working directory
will contain several  additional files:
suv.idl track.idl fixshots.idl and trackfile,
which can be simply deleted, as well as the single output file
output1.dat and the "executeable" gemf.exe .

The first of these, "output1.dat" is the model output file,
while the second, "gemf.exe" is an executeable file which 
should be used for all further runs.  

To test it, go to a new empty working directory and populate it 
with only the files:

gemf.exe gemf.m g_trackfile nrmrayse10_15.idl and zipcodes.idl


To run the model again using the executable, simply type at the 
UNIX PROMPT

UNIX%  idl gemf.m  (cr)

when the unix prompt returns, your new working directory
will contain one additional files, namely output1.dat,
which should be identical with the one obtained earlier.

You may now safely store the source files somewhere and
use only the executable in all future runs.