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  !# Use climatological values of GHG in radiation (CCCMARAD2 only)
  logical           :: radghg_L     =.false.

  !# Use LINOZ prognostic Ozone in radiation (CCCMARAD2 .and. LINOZ only)
  logical           :: rad_linoz_L  =.false.

Roughness length

Gravity wave drag

Turbulent orographic form drag

By default, part of the unresolved topography gets "added" as an orographic roughness length to the roughness length of the surface schemes. But instead one can also use a turbulent orographic form drag scheme. To do this the following parameters of The parameter 'gwdrag' from the namelist 'physics_cfgs' should can get set to one of the following::

    Tofd               = 'beljaars04'
    Tofd_alpha  = 35.

Gravity wave drag

The parameter 'gwdrag' from the namelist 'physics_cfgs' should get set to one of the following:

    'NIL'         : no Gravity wave drag (default)
    'GWD86' : gravity wave drag + low-level blocking
    'SGO16'  : new formulation (2016) of GWD86

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   'NIL'                      : No explicit condensation scheme used (default)
   'CONSUN'           : Sunqvist type condensation scheme
   'NEWSUND'        : Sunqvist type condensation scheme
   'MP_MY2_OLD' : Milbrandtl and Yau microphysics scheme (old formulation)
   'MP_MY2'            : Milbrandtl and Yau microphysics scheme
   'MP_P3'               : P3 microphysics scheme

Convection

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   'MP_MY2'            : Milbrandtl and Yau microphysics scheme
   'MP_P3'               : P3 microphysics scheme

For resolutions of 10 km and lower we usually use 'consun'. For resolutions of 4 km and higher 'MP_P3'. However, 'MP_P3' can also get used at lower resolutions  (down to 12 km), especially when the output is used to drive a higher resolution simulation that uses 'MP_P3'.

Tracers to advect

Depending on the condensation scheme, several tracers can get chosen to get advected by setting the parameter 'Tr3d_list_S' from the namelist 'gem_cfgs'. For example:

for 'stcond = consun':

 Tr3d_list_S  =  'HU,wload=0,mono=2,mass=1,hzd=0,min=0.',
                              'QC,wload=1,mono=2,mass=1,hzd=0,min=0.'

for 'stcond = MP_P3':

 Tr3d_list_S  =  'HU,  wload=0,mono=2,mass=1,hzd=0,min=0.',
                              'MPQC,  wload=1,mono=2,mass=1,hzd=0,min=0.',
                              'MPNC,  wload=0,mono=2,mass=1,hzd=0,min=0.',

Precipitation (Bourgouin)

Boundary layer

Horizontal diffusion

Convection

Output fields

Have a look at the following wiki page to learn more about the format of the file 'outcfg.out', in which all output fields need to get specified, apart from station data (see below): outcfg.out

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