anchor.diff:          call create_variables(this, options)
   
           call initialize_core_variables(this, options)
  +
  +        call read_land_variables(this, options)
   
           call setup_meta_data(this, options)
   
  
positive.code: 
      end subroutine initialize_core_variables
  
      !> -------------------------------
      !! Initialize various internal variables that need forcing data first, e.g. temperature, pressure on interface, exner, ...
      !!
  
negative.code:         if (0<opt%vars_to_allocate( kVARS%canopy_water) )               call setup(this%canopy_water,             this%grid2d )
          if (0<opt%vars_to_allocate( kVARS%snow_water_equivalent) )      call setup(this%snow_water_equivalent,    this%grid2d )
          if (0<opt%vars_to_allocate( kVARS%skin_temperature) )           call setup(this%skin_temperature,         this%grid2d,   forcing_var=opt%parameters%sst_var,     list=this%variables_to_force)
          if (0<opt%vars_to_allocate( kVARS%soil_water_content) )         call setup(this%soil_water_content,       this%grid_soil)
          if (0<opt%vars_to_allocate( kVARS%soil_temperature) )           call setup(this%soil_temperature,         this%grid_soil)
          if (0<opt%vars_to_allocate( kVARS%latitude) )                   call setup(this%latitude,                 this%grid2d)
          if (0<opt%vars_to_allocate( kVARS%longitude) )                  call setup(this%longitude,                this%grid2d)
          if (0<opt%vars_to_allocate( kVARS%u_latitude) )                 call setup(this%u_latitude,               this%u_grid2d)
  