function progz (args)

EXPORT   = subwrd(args,1)
GC       = subwrd(args,2)

expid    = subwrd(args,3)
output   = subwrd(args,4)
debug    = subwrd(args,5)

ptop     = 20
plttop   = 30


* Define Seasons to Process
* -------------------------
seasons  = ''
       k = 6
while( k > 0 )
    season = subwrd(args,k)
if( season = '' )
    k = -1
else
    seasons = seasons % ' ' % season
k = k+1
endif
endwhile
uppercase seasons
          seasons = result
                                                                                                                                                     
* Initialize
* ----------
'reinit'
'set display greyscale white'
'set csmooth on'
'set clab off'
'c'


* Determine Variable Name and Location
* ------------------------------------
if ( EXPORT = "HE" )
    'run getvar  ZLE      DYN'
else
    'run getvar 'EXPORT' 'GC
endif
         mname  = subwrd(result,1)
         mfile  = subwrd(result,2)
         scale  = subwrd(result,3)
         expdsc = subwrd(result,4)

if( mfile = "NULL" ) ; return ; endif

'run getenv "GEOSUTIL"'
         geosutil = result
                                                                                                   
'run getenv "VERIFICATION"'
         verification = result

'run getenv "ANALYSIS"'
         analysis = result

'run getenv "STD_DEV"'
         std_dev  = result



* Model Experiment Data
* ---------------------
'set dfile 'mfile
'setdates'
'run getenv "BEGDATE"'
             begdate  = result
'run getenv "ENDDATE"'
             enddate  = result
'setlons'
'sety'
'setz'
'sett'

* Get Dimension of Model Environment
* ----------------------------------
'getinfo lonmin'
         lonmin = result
'getinfo lonmax'
         lonmax = result
'getinfo latmin'
         latmin = result
'getinfo latmax'
         latmax = result

                     ' alias ' mname
                      malias = result
'chckname            'malias
'seasonalf -FUNCTION 'malias'*'scale' -NAME mod0'
 modfile  = subwrd(result,1)
 
*******************************************************************
****   Loop over Possible Experiment Datasets for Comparison   ****
*******************************************************************

'!/bin/mv HISTORY.T HISTORY.Tmp'
'run getenv "CMPEXP"'
         cmpexp = result
            num = 1
            exp = subwrd( cmpexp,num )
while( exp != 'NULL' )
say ' '
say 'Comparing with: 'exp

'run setenv "LEVTYPE" 'A

'!chckfile 'exp'/.HOMDIR'
 'run getenv CHECKFILE'
         CHECKFILE  = result
     if( CHECKFILE != 'NULL' )
        '!/bin/cp `cat 'exp'/.HOMDIR`/HISTORY.rc .'
     else
        '!/bin/cp 'exp'/HISTORY.rc .'
     endif
'!remove CHECKFILE.txt'

'!cat HISTORY.rc | sed -e "s/,/ , /g" > HISTORY.T'

if ( EXPORT = "HE" )
    'run getvar  ZLE      DYN 'exp
else
    'run getvar 'EXPORT' 'GC' 'exp
endif
               oname = subwrd(result,1)
               ofile = subwrd(result,2)
              oscale = subwrd(result,3)
              obsdsc = subwrd(result,4)
              obsnam = subwrd(result,5)

'set dfile 'ofile
    'getdates'
     begdateo = subwrd(result,1)
     enddateo = subwrd(result,2)

'set lon 'lonmin' 'lonmax
'set lat 'latmin' 'latmax
'setz'

                     ' alias ' oname
                      oalias = result
'chckname            'oalias
'seasonalf -FUNCTION 'oalias'*'oscale' -NAME exp'num
 expfile  = subwrd(result,1)
 

* Loop over Seasons to Process
* ----------------------------
                 m = 1
          while( m > 0 )
              season = subwrd(seasons,m)
          if( season = '' )
                   m = -1
          else
                   m = m+1

say 'Processing Season: 'season

'set dfile 'mfile
'count "'season'" 'begdate' 'enddate
 nmod =  result

'set dfile 'ofile
'count "'season'"'
 nobs =  result


* Set EXPORT Model and Observation Scaling Factors
* ------------------------------------------------
if( EXPORT = "U"     ) ; facm = 1     ; endif
if( EXPORT = "V"     ) ; facm = 1     ; endif
if( EXPORT = "T"     ) ; facm = 1     ; endif
if( EXPORT = "Q"     ) ; facm = 1000  ; endif
if( EXPORT = "ZLE"   ) ; facm = 1     ; endif
if( EXPORT = "RH2"   ) ; facm = 100   ; endif
if( EXPORT = "OMEGA" ) ; facm = 864   ; endif

faco = facm

* Create Temporary File at 1x1 degree resolution with consistent levels
* ---------------------------------------------------------------------
'set dfile 'mfile
'set lat -90 90'
'setlons'

'set dfile 'modfile
'setz'
'set t 1'
'define mod = mod0'season'*'facm
'makez  mod z'

'set dfile 'expfile
'setz'
'set t 1'
'define obs = exp'num''season'*'faco
'makez  obs z'

'set dfile 'mfile
'set t 1'
'makezdif -q1 mod -q2 obs -file1 'modfile' -file2 'expfile' -ptop 'ptop


* Make ZPLT
* ---------
                       flag = ""
               while ( flag = "" )

'run 'geosutil'/plots/zcmp/zplt -EXPID 'expid' -EXPORT 'EXPORT' -ALIAS 'mname' -QFILE 'mfile' -OFILE 'ofile' -ONAME 'obsnam' -OBDATE 'begdateo' -OEDATE 'enddateo' -NMOD 'nmod' -NOBS 'nobs' -QDESC 'expdsc' -ODESC 'obsdsc' -OUTPUT 'output' -SEASON 'season' -PTOP 'plttop

                if( debug = "debug" )
                    say "Hit  ENTER  to repeat plot"
                    say "Type 'next' for  next plot, 'done' for next field"
                    pull flag
                else
                    flag = "next"
                endif
               'c'
               endwhile

* End Seasonal Test
* -----------------
endif

* End Seasonal Loop
* -----------------
endwhile


* Check next Comparison Experiment Dataset
* ----------------------------------------
  num = num + 1
  exp = subwrd( cmpexp,num )
endwhile
'!/bin/mv HISTORY.Tmp HISTORY.T'


*********************************************************************
****   Loop over Possible Verification Datasets for Comparison   ****
*********************************************************************

* Set EXPORT Model and Observation Scaling Factors
* ------------------------------------------------
if( EXPORT = "U"     ) ; facm = 1     ; faco = 1     ; endif
if( EXPORT = "V"     ) ; facm = 1     ; faco = 1     ; endif
if( EXPORT = "T"     ) ; facm = 1     ; faco = 1     ; endif
if( EXPORT = "Q"     ) ; facm = 1000  ; faco = 1000  ; endif
if( EXPORT = "ZLE"   ) ; facm = 1     ; faco = 1     ; endif
if( EXPORT = "RH2"   ) ; facm = 100   ; faco = 1     ; endif
if( EXPORT = "OMEGA" ) ; facm = 864   ; faco = 864   ; endif

* Get Plotting Values from Resource File
* --------------------------------------
'run getenv "GEOSUTIL"'
         geosutil = result
PLOTRC = geosutil'/plots/grads_util/plot.rc'

' getnumrc 'geosutil'/plots/zcmp'
     rcinfo = result
     numrc  = subwrd( rcinfo,1 )
       num  = 1
       cnt  = 0
while( num <= numrc )
        loc = num + 1
     rcfile = subwrd( rcinfo,loc )
              OBS = EXPORT
     'run getobs 'OBS' 'GC' 'rcfile
               oname = subwrd(result,1)
               ofile = subwrd(result,2)
              oscale = subwrd(result,3)
              obsdsc = subwrd(result,4)
              obsnam = subwrd(result,5)

if( analysis != "false" )
   'run setenv "LEVTYPE" 'A
else
   'run setenv "LEVTYPE" 'D
endif

* Compute PLOT for Specific Verification
* --------------------------------------
if( oname != 'NULL' ) 

'set dfile 'ofile
    'getdates'
     begdateo = subwrd(result,1)
     enddateo = subwrd(result,2)

'set lon 'lonmin' 'lonmax
'set lat 'latmin' 'latmax
'setz'

                     ' alias ' oname
                      oalias = result
'chckname            'oalias
'seasonalf -FUNCTION 'oalias'*'oscale' -NAME obs'num
 obsfile  = subwrd(result,1)
 

* Loop over Seasons to Process
* ----------------------------
                 m = 1
          while( m > 0 )
              season = subwrd(seasons,m)
          if( season = '' )
                   m = -1
          else
                   m = m+1

say 'Processing Season: 'season

'set dfile 'mfile
'count "'season'" 'begdate' 'enddate
 nmod =  result

'set dfile 'ofile
'count "'season'"'
 nobs =  result


* Create Temporary File at 1x1 degree resolution with consistent levels
* ---------------------------------------------------------------------
'set dfile 'mfile
'set lat -90 90'
'setlons'

'set dfile 'modfile
'setz'
'set t 1'
'define mod = mod0'season'*'facm
'makez  mod z'

'set dfile 'obsfile
'setz'
'set t 1'
'define obs = obs'num''season'*'faco
'makez  obs z'

'set dfile 'mfile
'set t 1'
'makezdif -q1 mod -q2 obs -file1 'modfile' -file2 'obsfile' -ptop 'ptop

* Make ZPLT
* ---------
                       flag = ""
               while ( flag = "" )

'run 'geosutil'/plots/zcmp/zplt -EXPID 'expid' -EXPORT 'EXPORT' -ALIAS 'mname' -QFILE 'mfile' -OFILE 'ofile' -ONAME 'obsnam' -OBDATE 'begdateo' -OEDATE 'enddateo' -NMOD 'nmod' -NOBS 'nobs' -QDESC 'expdsc' -ODESC 'obsdsc' -OUTPUT 'output' -SEASON 'season' -PTOP 'plttop

                if( debug = "debug" )
                    say "Hit  ENTER  to repeat plot"
                    say "Type 'next' for  next plot, 'done' for next field"
                    pull flag
                else
                    flag = "next"
                endif
               'c'
               endwhile

* End Seasonal Test
* -----------------
endif

* End Seasonal Loop
* -----------------
endwhile

* End check for valid OBS
* -----------------------
endif

* Check next Verification Dataset
* -------------------------------
num = num + 1
endwhile

return

function getdate (date,month,year)
       num = 1
       bit = substr(date,num,1)
while( bit != '' )
       num = num+1
       bit = substr(date,num,1)
endwhile
       loc = num-7
     month = substr(date,loc  ,3)
      year = substr(date,loc+3,4)
return month' 'year