| 1 | SUBROUTINE user_init_plant_canopy |
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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 | ! |
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| 7 | ! |
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| 8 | ! Former revisions: |
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| 9 | ! ----------------- |
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| 10 | ! $Id: user_init_plant_canopy.f90 226 2009-02-02 07:39:34Z letzel $ |
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| 11 | ! |
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| 12 | ! 211 2008-11-11 04:46:24Z raasch |
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| 13 | ! Former file user_interface.f90 split into one file per subroutine |
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| 14 | ! |
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| 15 | ! Description: |
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| 16 | ! ------------ |
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| 17 | ! Initialisation of the leaf area density array (for scalar grid points) and |
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| 18 | ! the array of the canopy drag coefficient, if the user has not chosen any |
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| 19 | ! of the default cases |
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| 20 | !------------------------------------------------------------------------------! |
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| 21 | |
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| 22 | USE arrays_3d |
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| 23 | USE control_parameters |
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| 24 | USE indices |
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| 25 | USE user |
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| 26 | |
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| 27 | IMPLICIT NONE |
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| 28 | |
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| 29 | INTEGER :: i, j |
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| 30 | |
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| 31 | ! |
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| 32 | !-- Here the user-defined grid initializing actions follow: |
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| 33 | |
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| 34 | ! |
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| 35 | !-- Set the 3D-arrays lad_s and cdc for user defined canopies |
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| 36 | SELECT CASE ( TRIM( canopy_mode ) ) |
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| 37 | |
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| 38 | CASE ( 'block' ) |
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| 39 | ! |
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| 40 | !-- Not allowed here since this is the standard case used in init_3d_model. |
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| 41 | |
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| 42 | CASE ( 'user_defined_canopy_1' ) |
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| 43 | ! |
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| 44 | !-- Here the user can define his own topography. |
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| 45 | !-- The following lines contain an example in that the |
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| 46 | !-- plant canopy extends only over the second half of the |
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| 47 | !-- model domain along x |
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| 48 | ! DO i = nxl-1, nxr+1 |
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| 49 | ! IF ( i >= INT(nx+1/2) ) THEN |
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| 50 | ! DO j = nys-1, nyn+1 |
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| 51 | ! lad_s(:,j,i) = lad(:) |
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| 52 | ! cdc(:,j,i) = drag_coefficient |
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| 53 | ! ENDDO |
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| 54 | ! ELSE |
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| 55 | ! lad_s(:,:,i) = 0.0 |
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| 56 | ! cdc(:,:,i) = 0.0 |
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| 57 | ! ENDIF |
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| 58 | ! ENDDO |
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| 59 | !-- After definition, please |
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| 60 | !-- remove the following three lines! |
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| 61 | PRINT*, '+++ user_init_plant_canopy: canopy_mode "', & |
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| 62 | canopy_mode, '" not available yet' |
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| 63 | |
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| 64 | CASE DEFAULT |
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| 65 | ! |
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| 66 | !-- The DEFAULT case is reached if the parameter canopy_mode contains a |
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| 67 | !-- wrong character string that is neither recognized in init_3d_model nor |
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| 68 | !-- here in user_init_plant_canopy. |
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| 69 | PRINT*, '+++ user_init_plant_canopy: unknown canopy_mode "', & |
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| 70 | canopy_mode, '"' |
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| 71 | CALL local_stop |
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| 72 | |
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| 73 | END SELECT |
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| 74 | |
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| 75 | |
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| 76 | END SUBROUTINE user_init_plant_canopy |
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| 77 | |
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