PARAMETER (NTIME=1201)  
      PARAMETER (IlON=64)
      PARAMETER (IlAT=36)
      parameter (kgit=56)
      parameter (nvar=1)
	  character*2  filea1
	        REAl  aus(ilon,ilat,kgit,nvar),aus1(ilon,ilat,kgit,nvar)
		REAl  TD(ilon,ilat,kgit,nvar)
		REAl  PW(ilon,ilat,kgit,nvar)
			  !parameters for averaging pw
	  real h_int1,h_int2,h_int

		!avereging half-period merra 1 day- 8 points
	!	h_int=12
		h_int=18
		
      open(2,file='wvel.dx',form='unformatted', &
     & access='direct', status='unknown',recl=4*ilon*ilat*kgit*nvar)     
	!output bin with real and im   for tides
      open(3,file='w_tD.dx',form='unformatted', &
     & access='direct', status='unknown',recl=4*ilon*ilat*kgit*nvar) 	 
	!output bin with real and im    for planetary waves
      open(4,file='w_pw.dx',form='unformatted', &
     & access='direct', status='unknown',recl=4*ilon*ilat*kgit*nvar) 

!________________________
	  DO L=1,NTIME
	  WRITE(*,*) L
	   read(2,rec=l) aus
		
	   if (L <= h_int) then
	   h_int1=L-1
	   h_int2=h_int
	   endif
	   if (L>=nTIME-h_int) then
	   h_int1=h_int
	   h_int2=h_int-(L-(nTIME-h_int))
	   endif
	   if (L>h_int .and. L<nTIME-h_int) then
	   h_int1=h_int
	   h_int2=h_int
	   endif
	  
		do mm=L-h_int1,L+h_int2
		      read(2,rec=MM) aus1
	
			PW=PW+AUS1/(h_int1+h_int2+1)
	
		enddo 
		

		
	   TD=aus-PW
	   WRITE(3,rec=l) TD
		WRITE(4,rec=l) pw
		

		PW=0
		TD=0
      Enddo  
!________________________	 
	 
	 END