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!                     version 3; Last Modified: May 7, 2008.
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!

      subroutine sustatsglb 1,4
#if defined (DOC)
*
***s/r sustatsglb  - Characterization of the forecast error covariance in GU mode.
*
*
*Author  : Luc Fillion ARMA/EC - 28 Aug 2008.
*Revision:
*    -------------------
**    Purpose: to initialize the background error correlations
*     .        and the forecast error standard deviations.
*
*Arguments
#endif
      IMPLICIT NONE
*implicits
#include "comlun.cdk"
#include "comdim.cdk"
#include "comcva.cdk"
#include "comsim.cdk"
!
!!
      if(lsimulcor) then
!
!       Read in PtoT - operator needed for balance
!       ------------------------------------------
!
        if(.not.lsw.or.mbal_order.gt.0) call readptot_simul
!
!       Prepare control variable spectral covariances
!       ---------------------------------------------
!
        call sucovgu
      else
        call sunewstats(0,0) ! n.b.: regression matrices reinitialized in sucva.ftn if l1obs...
      endif
!
      call corrlengthglb(999,.false.,.true.) ! final diagnostic and ensure rhcorl array is representative.
!
      return
      end