source: palm/trunk/SOURCE/user_check_parameters.f90 @ 251

 SUBROUTINE user_check_parameters

!------------------------------------------------------------------------------!
! Actual revisions:
! -----------------
! add default topography_grid_convention for the new topography case 
! 'single_street_canyon'
!
! Former revisions:
! -----------------
! $Id: user_check_parameters.f90 240 2009-02-18 17:50:38Z raasch $
!
! 217 2008-12-09 18:00:48Z letzel
! Initial version
!
! Description:
! ------------
! Check &userpar control parameters and deduce further quantities.
!------------------------------------------------------------------------------!

    USE control_parameters
    USE user

    IMPLICIT NONE

!
!-- In case of non-flat topography, check whether the convention how to 
!-- define the topography grid has been set correctly, or whether the default
!-- is applicable. If this is not possible, abort.
    IF ( TRIM( topography ) /= 'flat' )  THEN
       IF ( TRIM( topography_grid_convention ) == ' ' )  THEN
          IF ( TRIM( topography ) /= 'single_building' .AND.  &
               TRIM( topography ) /= 'single_street_canyon' .AND.  &
               TRIM( topography ) /= 'read_from_file' )  THEN
!--          The default value is not applicable here, because it is only valid
!--          for the two standard cases 'single_building' and 'read_from_file'
!--          defined in init_grid.
             WRITE( message_string, * )  &
                  'The value for "topography_grid_convention" ',  &
                  'is not set. Its default value is & only valid for ',  &
                  '"topography" = ''single_building'', ',  &
                  '''single_street_canyon'' & or ''read_from_file''.',  &
                  ' & Choose ''cell_edge'' or ''cell_center''.'
             CALL message( 'user_check_parameters', 'UI0001', 1, 2, 0, 6, 0 )
          ELSE
!--          The default value is applicable here.
!--          Set convention according to topography.
             IF ( TRIM( topography ) == 'single_building' .OR.  &
                  TRIM( topography ) == 'single_street_canyon' )  THEN
                topography_grid_convention = 'cell_edge'
             ELSEIF ( TRIM( topography ) == 'read_from_file' )  THEN
                topography_grid_convention = 'cell_center'
             ENDIF
          ENDIF
       ELSEIF ( TRIM( topography_grid_convention ) /= 'cell_edge' .AND.  &
                TRIM( topography_grid_convention ) /= 'cell_center' )  THEN
          WRITE( message_string, * )  &
               'The value for "topography_grid_convention" is ', &
               'not recognized. & Choose ''cell_edge'' or ''cell_center''.'
          CALL message( 'user_check_parameters', 'UI0002', 1, 2, 0, 6, 0 )
       ENDIF
    ENDIF

!
!-- Here the user may add code to check the validity of further &userpar 
!-- control parameters or deduce further quantities.


 END SUBROUTINE user_check_parameters