4.4.1.1. Namelist NAM_FRAC

This namelist defines if ECOCLIMAP mechanism based on fractions of covers will be used or not.

It’s also where the fractions of the 4 main types of surfaces or tiles are given if ECOCLIMAP is not used to define them.

Fortran name Fortran type values default value
LECOCLIMAP Logical .TRUE.
XUNIF_SEA real between 0 and 1 none
CFNAM_SEA character (LEN=28) ' '
CFTYP_SEA character (LEN=6) 'DIRECT', 'BINLLF','BINLLV','ASCLLV' none
XUNIF_WATER real between 0 and 1 none
CFNAM_WATER character (LEN=28) ' '
CFTYP_WATER character (LEN=6) 'DIRECT', 'BINLLF','BINLLV', 'ASCLLV' none
XUNIF_NATURE real between 0 and 1 none
CFNAM_NATURE character (LEN=28) ' '
CFTYP_NATURE character (LEN=6) 'DIRECT', 'BINLLF','BINLLV', 'ASCLLV' none
XUNIF_TOWN real between 0 and 1 none
CFNAM_TOWN character (LEN=28) ' '
CFTYP_TOWN character (LEN=6) 'DIRECT', 'BINLLF','BINLLV', 'ASCLLV' none

  • LECOCLIMAP : flag to use ECOCLIMAP or not. From version 7.1, it’s possible to partially use ECOCLIMAP to complete missing parameters when they are given directly in the namelist ( see here )
  • XUNIF_SEA : uniform prescribed value of sea fraction. If XUNIF_SEA is set, file CFNAM_SEA is not used.
  • CFNAM_SEA: sea fraction data file name. If XUNIF_SEA is set, file CFNAM_SEA is not used.
  • CFTYP_SEA: type of sea data file ('DIRECT', 'BINLLF', 'BINLLV', 'ASCLLV')
  • XUNIF_WATER : uniform prescribed value of water fraction. If XUNIF_WATER is set, file CFNAM_WATER is not used.
  • CFNAM_WATER: water fraction data file name. If XUNIF_WATER is set, file CFNAM_WATER is not used.
  • CFTYP_WATER: type of water data file ('DIRECT', 'BINLLF', 'BINLLV', 'ASCLLV')
  • XUNIF_NATURE : uniform prescribed value of nature fraction. If XUNIF_NATURE is set, file CFNAM_NATURE is not used.
  • CFNAM_NATURE: nature fraction data file name. If XUNIF_NATURE is set, file CFNAM_NATURE is not used.
  • CFTYP_NATURE: type of nature data file ('DIRECT', 'BINLLF', 'BINLLV', 'ASCLLV')
  • XUNIF_TOWN : uniform prescribed value of town fraction. If XUNIF_TOWN is set, file CFNAM_TOWN is not used.
  • CFNAM_TOWN: town fraction data file name. If XUNIF_TOWN is set, file CFNAM_TOWN is not used.
  • CFTYP_TOWN: type of town data file ('DIRECT', 'BINLLF', 'BINLLV', 'ASCLLV')