writeheader_surf.f90 5.5 KB
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! SPDX-FileCopyrightText: FLEXPART 1998-2019, see flexpart_license.txt
! SPDX-License-Identifier: GPL-3.0-or-later
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subroutine writeheader_surf

  !*****************************************************************************
  !                                                                            *
  !  This routine produces a file header containing basic information on the   *
  !  settings of the FLEXPART run.                                             *
  !  The header file is essential and must be read in by any postprocessing    *
  !  program before reading in the output data.                                *
  !                                                                            *
  !     Author: A. Stohl                                                       *
  !                                                                            *
  !     7 August 2002                                                          *
  !                                                                            *
  !*****************************************************************************
  !                                                                            *
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  !  Modified to remove TRIM around the output of flexversion so that          *
  !  it will be a constant length (defined in com_mod.f90) in output header    *
  !                                                                            *
  !     Don Morton, Boreal Scientific Computing                                *
  !     07 May 2017                                                            *
  !                                                                            *
  !*****************************************************************************
  !                                                                            *
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  ! Variables:                                                                 *
  !                                                                            *
  ! xlon                   longitude                                           *
  ! xl                     model x coordinate                                  *
  ! ylat                   latitude                                            *
  ! yl                     model y coordinate                                  *
  !                                                                            *
  !*****************************************************************************

  use point_mod
  use outg_mod
  use par_mod
  use com_mod

  implicit none

  integer :: jjjjmmdd,ihmmss,i,ix,jy,j
  real :: xp1,yp1,xp2,yp2


  !************************
  ! Open header output file
  !************************

  open(unitheader,file=path(2)(1:length(2))//'header_grid_time', &
       form='unformatted',err=998)


  ! Write the header information
  !*****************************

  if (ldirect.eq.1) then
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    write(unitheader) ibdate,ibtime, flexversion
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  else
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    write(unitheader) iedate,ietime, flexversion
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  endif

  ! Write info on output interval, averaging time, sampling time
  !*************************************************************

  write(unitheader) loutstep,loutaver,loutsample

  ! Write information on output grid setup
  !***************************************

  write(unitheader) outlon0,outlat0,numxgrid,numygrid, &
       dxout,dyout
  write(unitheader) 1,(outheight(1),i=1,1)

  call caldate(bdate,jjjjmmdd,ihmmss)
  write(unitheader) jjjjmmdd,ihmmss

  ! Write number of species, and name for each species (+extra name for depositions)
  ! Indicate the dimension of the fields (i.e., 1 for deposition fields, numzgrid for
  ! concentration fields
  !*****************************************************************************

  write(unitheader) 3*nspec,maxpointspec_act
  do i=1,nspec
    write(unitheader) 1,'WD_'//species(i)(1:7)
    write(unitheader) 1,'DD_'//species(i)(1:7)
    write(unitheader) 1,species(i)
  end do

  ! Write information on release points: total number, then for each point:
  ! start, end, coordinates, # of particles, name, mass
  !************************************************************************

  write(unitheader) numpoint
  do i=1,numpoint
    write(unitheader) ireleasestart(i),ireleaseend(i),kindz(i)
    xp1=xpoint1(i)*dx+xlon0
    yp1=ypoint1(i)*dy+ylat0
    xp2=xpoint2(i)*dx+xlon0
    yp2=ypoint2(i)*dy+ylat0
    write(unitheader) xp1,yp1,xp2,yp2,zpoint1(i),zpoint2(i)
    write(unitheader) npart(i),1
    if (numpoint.le.1000) then
      write(unitheader) compoint(i)
    else
      write(unitheader) compoint(1001)
    endif
    do j=1,nspec
      write(unitheader) xmass(i,j)
      write(unitheader) xmass(i,j)
      write(unitheader) xmass(i,j)
    end do
  end do

  ! Write information on some model switches
  !*****************************************

  write(unitheader) method,lsubgrid,lconvection, &
       ind_source,ind_receptor

  ! Write age class information
  !****************************

  write(unitheader) nageclass,(lage(i),i=1,nageclass)


  ! Write topography to output file
  !********************************

  do ix=0,numxgrid-1
    write(unitheader) (oroout(ix,jy),jy=0,numygrid-1)
  end do
  close(unitheader)

  return


998   write(*,*) ' #### FLEXPART MODEL ERROR!   THE FILE         #### '
  write(*,*) ' #### '//path(2)(1:length(2))//'header'//' #### '
  write(*,*) ' #### CANNOT BE OPENED. IF A FILE WITH THIS    #### '
  write(*,*) ' #### NAME ALREADY EXISTS, DELETE IT AND START #### '
  write(*,*) ' #### THE PROGRAM AGAIN.                       #### '
  stop

end subroutine writeheader_surf