| 1 | SUBROUTINE user_init_grid( gls, nzb_local ) |
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| 2 | |
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| 3 | !------------------------------------------------------------------------------! |
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| 4 | ! Actual revisions: |
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| 5 | ! ----------------- |
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| 6 | ! +topography_grid_convention |
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| 7 | ! Former file user_interface.f90 split into one file per subroutine |
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| 8 | ! |
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| 9 | ! Former revisions: |
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| 10 | ! ----------------- |
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| 11 | ! $Id: user_init_grid.f90 217 2008-12-09 18:00:48Z letzel $ |
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| 12 | ! |
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| 13 | ! Description: |
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| 14 | ! ------------ |
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| 15 | ! Execution of user-defined grid initializing actions |
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| 16 | ! First argument gls contains the number of ghost layers, which is > 1 if the |
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| 17 | ! multigrid method for the pressure solver is used |
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| 18 | !------------------------------------------------------------------------------! |
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| 19 | |
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| 20 | USE control_parameters |
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| 21 | USE indices |
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| 22 | USE user |
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| 23 | |
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| 24 | IMPLICIT NONE |
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| 25 | |
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| 26 | INTEGER :: gls |
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| 27 | |
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| 28 | INTEGER, DIMENSION(-gls:ny+gls,-gls:nx+gls) :: nzb_local |
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| 29 | |
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| 30 | ! |
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| 31 | !-- Here the user-defined grid initializing actions follow: |
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| 32 | |
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| 33 | ! |
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| 34 | !-- Set the index array nzb_local for non-flat topography. |
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| 35 | !-- Here consistency checks concerning domain size and periodicity are necessary |
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| 36 | SELECT CASE ( TRIM( topography ) ) |
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| 37 | |
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| 38 | CASE ( 'flat', 'single_building' ) |
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| 39 | ! |
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| 40 | !-- Not allowed here since these are the standard cases used in init_grid. |
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| 41 | |
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| 42 | CASE ( 'user_defined_topography_1' ) |
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| 43 | ! |
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| 44 | !-- Here the user can define his own topography. |
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| 45 | |
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| 46 | ! |
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| 47 | !-- For each user-defined topography, the topography grid convention has |
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| 48 | !-- to be explicitly set to either 'cell_edge' or 'cell_center'. |
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| 49 | !-- topography_grid_convention = 'cell_edge' ! OR: |
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| 50 | !-- topography_grid_convention = 'cell_center' |
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| 51 | |
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| 52 | ! |
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| 53 | !-- After definition, please remove the following three lines! |
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| 54 | PRINT*, '+++ user_init_grid: topography "', & |
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| 55 | topography, '" not available yet' |
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| 56 | CALL local_stop |
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| 57 | |
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| 58 | CASE DEFAULT |
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| 59 | ! |
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| 60 | !-- The DEFAULT case is reached if the parameter topography contains a |
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| 61 | !-- wrong character string that is neither recognized in init_grid nor |
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| 62 | !-- here in user_init_grid. |
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| 63 | PRINT*, '+++ (user_)init_grid: unknown topography "', & |
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| 64 | topography, '"' |
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| 65 | CALL local_stop |
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| 66 | |
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| 67 | END SELECT |
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| 68 | |
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| 69 | |
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| 70 | END SUBROUTINE user_init_grid |
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| 71 | |
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