CALL SEQUENCE...
       zxint  ZXIN INPUT OUTPUT [ -scal VAL1 -a VAL2 -b VAL3 -label VAL4 ]
 
 
      DESCRIPTION...
       zxint  - GRAPHS LATITUDE AVG AND PRESSURE INTEGRAL OF A  CROSS-SECTION
 
 
      AUTHOR  - J.D.Henderson, NOV 29/83.
      LAST REVISION: $Header: /home/cvs/RMNLIB/utils/rdiag/lspgm/zxint.ptn,v 4.9 2014/09/25 20:20:57 dugas Exp $
 
 
      PURPOSE - GRAPHS ONE CROSS-SECTION (FROM FILE ZXIN) WHICH IS AVERAGED
                IN LATITUDE AND INTEGRATED IN PRESSURE. THE VALUE OF THE
                GLOBAL INTEGRAL PER UNIT AREA IS ALSO PRINTED.
      NOTES   - 1) AT INPUT THE CROSS-SECTION IS ORDERED FROM S TO N AND
                   TOP TO BOTTOM.
                2) THE MAXIMUM LATITUDES AND LEVELS ARE SET TO 999.
 
 
      INPUT FILE...
       ZXIN = FILE CONTAINING ONE CROSS-SECTION.
 
 
      INPUT PARAMETERS...
 
       CONST     (scal) = MULTIPLICATIVE CONSTANT (DEFAULTS TO 1./9.80616)
       GMIN,GMAX (a,b)  = MIN AND MAX LIMITS FOR THE GRAPH OF PRESSURE
                          INTEGRAL VS. LATITUDE. IF BOTH ARE ZERO THE
                          LIMITS ARE CALCULATED.
       LABEL            = 80 CHARACTER LABEL PRINTED ON THE GRAPH.
 
       READ( 5,5010 ) CONST,GMIN,GMAX
       READ( 5,5012 ) LABEL
 5010  FORMAT(10X,3E10.0)
 5012  FORMAT(A80)
 
 
      EXAMPLE OF INPUT CARD...
 
   ZXINT  0.10197671        0.        0.
   LABEL CARD GOES HERE
 
         0123456789012345678901234567890123456789012345678901234567890
         1         2         3         4         5         6         7
 
 
      EXIT CONDITIONS...
        0 NO PROBLEMS
        1 PROBLEMS READING ZXIN
        2 FOUND DATA TYPE NOT ZONAL IN ZXIN
        3 ABORT ERROR READING ZXIN
        4 MORE THAN ONE SIZE FOR ARRAYS IN ZXIN
        5 ABORT ERROR READIND INPUT DIRECTIVES
        6 ABORT ERROR READIND INPUT LABEL
        7 ZXIN DOES NOT CONTAIN PRESSURE LEVELS