ADAS Subroutine b4sumd

       SUBROUTINE B4SUMD ( NDREP  , NDT     ,
     &                     MAXTM  , IREPMAX , IREP   , DRMF   , DRMS   ,
     &                     EIJN   , PWTEMP   
     &                   )
C-----------------------------------------------------------------------
C
C **************** FORTRAN 77 SUBROUTINE: B4SUMD  **********************
C
C  VERSION: 2.0
C
C  PURPOSE: TO SUM BADNELL DIELECTRONIC RATE COEFFICIENT DATA OVER THE
C           REPRESENTATIVE SET TO GIVE ZERO DENSITY TOTAL AND
C           RADIATED POWER FROM SATELLITE LINES
C       
C  CALLING PROGRAM: B4DATD
C
C
C  INPUT:
C  INPUT :  (I*4) NDREP    = MAXIMUM NUMBER OF REPRESENTATIVE LEVELS
C  INPUT :  (I*4) NDT      = MAXIMUM NUMBER OF TEMPERATURES
C  INPUT :  (I*4) DRMF(,)  = BADNELL DIELECTRONIC DATA (CM3 S-1)
C                            1ST DIM.: REPRESENTATIVE LEVEL INDEX
C                            2ND DIM.: TEMPERATURE INDEX
C  INPUT :  (I*4) NBT      = NO. OF TEMPERATURES
C  INPUT :  (I*4) IREPMAX  = NO OF REPRESENTATIVE LEVELS
C  INPUT :  (I*4) IREP()   = SET OF REPRESENTATIVE LEVELS
C  INPUT :  (R*8) EIJN()   = SATELLITE. ENERGY AS A FUNCTION OF 
C                            REPRESENTATIVE LEVEL (K)
C
C  OUTPUT:  (R*8) DRMS()   = SUMMED DR RATE COEFFICIENTS (CM3 S-1)
C                            1ST DIM.: TEMPERATURE INDEX
C  OUTPUT:  (R*8) PWTEMP() = SAT. RADIATED POWER (UNITS ERG S-1 CM3)
C                            1ST DIM.: TEMPERATURE INDEX
C
C           (I*4) NREP     = GENERAL LEVEL INDEX
C           (I*4) IN       = GENERAL INDEX
C           (I*4) IT       = GENERAL INDEX
C           (R*8) V        = GENERAL VARIABLE FOR N-SHELL
C           (R*8) V1       = GENERAL VARIABLE FOR N-SHELL
C           (R*8) Y        = GENERAL VARIABLE FOR N-SHELL
C           (R*8) YP       = GENERAL VARIABLE FOR N-SHELL
C           (R*8) Y0       = GENERAL VARIABLE FOR N-SHELL
C           (R*8) Y1       = GENERAL VARIABLE FOR N-SHELL
C           (R*8) PW       = GENERAL VARIABLE FOR N-SHELL
C           (R*8) PW1      = GENERAL VARIABLE FOR N-SHELL
C
C
C  AUTHOR:   WILLIAM J. DICKSON, JET JOINT UNDERTAKING
C
C  DATE:     14TH DECEMBER 1992
C
C  UPDATE: 15/12/92  WJ DICKSON - REVISED ALGORITHM HAS BETTER 
C                                 AGREEMENT WITH INTERNAL SUM
C                                 CALCULATED BY MAINCL
C
C  UPDATE: 31/01/97  HP SUMMERS - CHANGED NAME TO B4SUMD 
C
C  VERSION: 1.1						DATE: 05-03-98
C  MODIFIED: RICHARD MARTIN
C		- PUT UNDER SCCS CONTROL.
C                 
C-------------------------------------------------------------------
      INTEGER             IREP(NDREP), IREPMAX,     MAXTM,       NDREP
      INTEGER             NDT
      REAL*8              DRMF(NDREP,NDT),          DRMS(NDT)
      REAL*8              EIJN(NDREP), PWTEMP(NDT)