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!

      SUBROUTINE oda_qcvad 1,1
      use modmask, only : lmaskgo,lmaskro,lmask
#if defined (DOC)
*
*
*Purpose : Factorizes Grad(Jo) according to Andersson and Jarvinen
*          1999, Variational quality control, Q.J.R., 125,
*          pp. 697-722.
*          It uses the value of (1-Wqc) saved in ROBDATA8(NCMOMN,*)
*          in oda_qcv.ftn
*
*Author  : S. Pellerin, ARMA, January 2009
*          Generalisation of QCVAR originally embeded in adjoint of
*          observation operators from P. Koclas, J. Halle and
*          J. St-James
*
*Revisions :
*
#endif
      IMPLICIT NONE
*implicits
#include "comdimo.cdk"
#include "comoabdy.cdk"
#include "comoahdr.cdk"
#include "comoba.cdk"
*
      INTEGER j,JDATA
      logical :: llmask(ndata)
      llmask = lmask .neqv. lmaskgo  ! Exclusion of GOES QCVAR
      llmask = llmask .neqv. lmaskro ! Exclusion of GPSRO QCVAR
      DO JDATA=1,ndata
        IF (llmask(jdata)) THEN
          ROBDATA8(NCMOMI,JDATA) = ROBDATA8(NCMOMI,JDATA)
     &         *(1.d0 - ROBDATA8(NCMOMN,JDATA))
        ENDIF
      END DO
C--------------------------------------------------------------------
      RETURN
      END