!***********************************************************************
!*                   GNU Lesser General Public License
!*
!* This file is part of the GFDL Flexible Modeling System (FMS).
!*
!* FMS is free software: you can redistribute it and/or modify it under
!* the terms of the GNU Lesser General Public License as published by
!* the Free Software Foundation, either version 3 of the License, or (at
!* your option) any later version.
!*
!* FMS is distributed in the hope that it will be useful, but WITHOUT
!* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
!* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
!* for more details.
!*
!* You should have received a copy of the GNU Lesser General Public
!* License along with FMS.  If not, see <http://www.gnu.org/licenses/>.
!***********************************************************************
subroutine MPP_WRITE_( unit, field, data, tstamp)
      use mpp_parameter_mod, only : NULLUNIT
      integer, intent(in) :: unit
      type(fieldtype), intent(in) :: field
      MPP_TYPE_, intent(in) :: data MPP_RANK_
      MPP_TYPE_, intent(in), optional :: tstamp

      if (unit == NULLUNIT) return
      MPP_WRITE_RECORD_
      return
    end subroutine MPP_WRITE_