!-------------------------------------- LICENCE BEGIN ------------------------------------
!Environment Canada - Atmospheric Science and Technology License/Disclaimer,
!                     version 3; Last Modified: May 7, 2008.
!This is free but copyrighted software; you can use/redistribute/modify it under the terms
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!

      subroutine susvbg 2,3
#if defined (DOC)
*
***s/r minimize  - Setup SV's for use in B matrix (make sure etiket for desired
*                  SVs is correctly set in call to READSV)
*
*
*Author  : M. Buehner *ARMA/MSC August, 2002
*Revision:
*
*Arguments
*    -NONE-
#endif
      IMPLICIT NONE
*implicits
#include "comdim.cdk"
#include "comlun.cdk"
#include "comcva.cdk"
#include "comsv.cdk"
*
      INTEGER IERR,ILEN,JJ
c
      call printrev("SUBROUTINE susvbg:",18)
c
c Read in Singular Vectors and continue with analysis
c
      WRITE(NULOUT,*) 'IN SUSVBG: NSV,NVADIM=',nsv,nvadim
      call vflush(NULOUT)
      IF(NSV.gt.0) THEN
        ILEN = NI*NJ*NKGDIM*NSV
        CALL HPALLOC(PTSVGD   ,MAX(ILEN,1),IERR,8)
        ILEN = NSV
        CALL HPALLOC(PTSVEVAL ,MAX(ILEN,1),IERR,8)
        CALL HPALLOC(PTSVCONTR,MAX(ILEN,1),IERR,8)
c
c set inner product scaling and initial value for SV control vector
c
        DO JJ=1,NSV
          SCALP(JJ+NVADIM-NSV)   = 1.0d0
          SCALPM1(JJ+NVADIM-NSV) = 1.0d0
          SVCONTR(JJ) = 0.0d0
        ENDDO
        WRITE(nulout,*) '**********************************'
        WRITE(NULOUT,*) '***READ IN SINGULAR VECTORS***'
        WRITE(NULOUT,*) '**********************************'
        IF(NSVMODE.ne.0) CALL READSV('SV_PROP ')
      ENDIF
c
      RETURN
      END