CALL SEQUENCE...
       ijlook  GFILE INPUT OUTPUT [ -t1   VAL1 -t2  VAL2 -t3   VAL3 \ 
                                    -lv1  VAL4 -lv2 VAL5 -name VAL6 \ 
                                    -i    VAL7   VAL8  \ 
                                    -j    VAL9   VAL10 \ 
                                    -kind VAL11 [VAL12] ]
 
 
      DESCRIPTION...
       ijlook  - PRINTS TIME SERIES OF A WINDOW IN A GRID FILE
 
 
      AUTHOR  - J-Francois Fortin ET R.Laprise, FEB 14/84.
      LAST REVISION: $Header: Autres-corrections-d-usages-de-MAXW-NWDS-modifs-dans-GGSIGN-SIGNAG @ 2018-06-05 17:00:06 -0400 (dugas) $
 
 
      PURPOSE - PRINTS ALL THE INFORMATION CONTAINED IN GFILE PERTAINING TO
                VARIABLE NAME, IN THE WINDOW FROM I1 TO I2 AND FROM J1 TO J2
                BETWEEN TIMESTEPS NT1 AND NT2 BY INCREMENT OF INT, AT ALL
                LEVELS BETWEEN LV1 AND LV2.
 
 
      INPUT FILE...
       GFILE = FILE CONTAINING A TIME SERIES OF GRIDS.
 
 
      INPUT PARAMETERS...
 
       NT1,NT2     = FIRST AND LAST TIMESTEP NUMBERS TO BE PRINTED.
       (t1,t2)       VALUES OF- 1 DEFAULT TO ALL TIMESTEPS.
       INT         = TIMESTEP INTERVAL TO BE PRINTED.
       (t3)          A VALUE LESS OR EQUAL TO ZERO DEFAULTS TO 1.
       LV1,LV2     = UPPER AND LOWER LEVELS TO BE PRINTED
                     IN COMMAND-LINE MODE, LV1 AND LV2 MAY ALSO BE THE REAL
                     DECODED LEVEL VALUES. IN THAT CASE, THE LEVEL TYPE
                     PARAMETER *** ABSOLUTELY HAS TO BE SPECIFIED ***.
       NAME        = VARIABLE TO BE PRINTED (BLANK, 'ALL' or '-1' PRINTS ALL)
       I1,I2,J1,J2 = VALUES DEFINING WINDOW TO BE PRINTED
       KIND-1 (RES)= OUTPUT RESOLUTION 'HI' FOR 5 NUMBER PER LINE AND 'LO'
                     FOR 12 NUMBERS PER LINE (THE DEFAULT IS 'LO')
       KIND-2      = VERTICAL LEVEL TYPE. ONLY USE THIS WITH IN RPN STD FILES
                     AND WHEN LV1 AND LV2 CONTAIN DECODED VALUES. FURTHERMORE,
                     THIS PARAMETRE CAN ONLY BE SPECIFIED IN COMMAND-LINE MODE.
                     THE CURRENTLY SUPPORTED VALUES ARE:
                     'HAUTEUR'   , heights (m) with respect to sea level
                     'SIGMA'     , classical terrain following (0.0 -> 1.0)
                     'ETA'       , first version of the GEM ETA coordinate
                     'PRESSION'  , pressure (mb)
                     'ARBITRAIRE', arbitrary level (no units apply)
                     'HAUTEURS'  , heights (M) with respect to the surface
                     'HYBRIDE'   , hybrid GEM coordinate
                     'THETA'     , potential temperature coordinate
                     'GALCHEN'   , GalChen generalized coordinate
 
       NOTE: 1) -1,0 FOR  NT,LV,I OR J,  IJLOOK WILL PRINT EVERYTHING.
             2) IF NT1,NT2 = 0, IJLOOK WILL PAUSE BETWEEN EACH RECORD.
 
       READ( 5,5010 ) NT1,NT2,INT,LV1,LV2,NAME
       READ( 5,5020 ) I1,J1,I2,J2,RES
 5010  FORMAT(15X,2I10,I5,5X,2I5,5X,1X,A4)
 5020  FORMAT(4I5,1X,A2)
 
 
      EXAMPLE OF INPUT CARDS...
 
    IJLOOK             24        48    1       100  850      VORT
   24   30   24   32 HI
 
         0123456789012345678901234567890123456789012345678901234567890
         1         2         3         4         5         6         7
 
 
      EXIT CONDITIONS...
        0 NO PROBLEMS
        1 ILLEGAL LOWER-LEFT POSITION SUPPLIED
        2 ILLEGAL RESOLUTION REQUESTED
        3 ILLEGAL UPPER-RIGHT POSITION SUPPLIED
        4 ERROR ABORT READING INPUT PARAMETRES
        5 REAL (DECODED) VERTICAL LEVELS, KIND NOT DEFINED
        6 INCONSISTENT VALUES IN INPUT PARAMETERS
        7 UNABLE TO OPEN GFILE