include file: wrf_io_flags.h 8
  integer, parameter  :: WRF_FILE_NOT_OPENED                  = 100
  integer, parameter  :: WRF_FILE_OPENED_NOT_COMMITTED        = 101
  integer, parameter  :: WRF_FILE_OPENED_AND_COMMITTED        = 102
  integer, parameter  :: WRF_FILE_OPENED_FOR_READ             = 103
  integer, parameter  :: WRF_REAL                             = 104
  integer, parameter  :: WRF_REAL8                            = 105
  integer, parameter  :: WRF_INTEGER                          = 106
  integer, parameter  :: WRF_LOGICAL                          = 107
  integer, parameter  :: WRF_REAL4                            = WRF_REAL