| 1 | MODULE calc_precipitation_mod |
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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: calc_precipitation.f90 4 2007-02-13 11:33:16Z raasch $ |
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| 11 | ! RCS Log replace by Id keyword, revision history cleaned up |
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| 12 | ! |
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| 13 | ! Revision 1.5 2004/01/30 10:15:57 raasch |
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| 14 | ! Scalar lower k index nzb replaced by 2d-array nzb_2d |
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| 15 | ! |
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| 16 | ! Revision 1.1 2000/04/13 14:45:22 schroeter |
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| 17 | ! Initial revision |
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| 18 | ! |
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| 19 | ! |
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| 20 | ! |
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| 21 | ! Description: |
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| 22 | ! ------------ |
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| 23 | ! Calculate the change of total water content due to precipitation |
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| 24 | ! (simplified Kessler scheme) |
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| 25 | !------------------------------------------------------------------------------! |
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| 26 | |
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| 27 | PRIVATE |
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| 28 | PUBLIC calc_precipitation |
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| 29 | |
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| 30 | INTERFACE calc_precipitation |
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| 31 | MODULE PROCEDURE calc_precipitation |
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| 32 | MODULE PROCEDURE calc_precipitation_ij |
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| 33 | END INTERFACE calc_precipitation |
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| 34 | |
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| 35 | CONTAINS |
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| 36 | |
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| 37 | |
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| 38 | !------------------------------------------------------------------------------! |
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| 39 | ! Call for all grid points |
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| 40 | !------------------------------------------------------------------------------! |
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| 41 | SUBROUTINE calc_precipitation |
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| 42 | |
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| 43 | USE arrays_3d |
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| 44 | USE cloud_parameters |
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| 45 | USE constants |
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| 46 | USE indices |
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| 47 | |
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| 48 | IMPLICIT NONE |
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| 49 | |
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| 50 | INTEGER :: i, j, k |
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| 51 | REAL :: precipitation_rate |
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| 52 | |
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| 53 | |
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| 54 | DO i = nxl, nxr |
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| 55 | DO j = nys, nyn |
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| 56 | DO k = nzb_2d(j,i)+1, nzt-1 |
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| 57 | |
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| 58 | IF ( ql(k,j,i) > ql_crit ) THEN |
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| 59 | precipitation_rate = prec_time_const * & |
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| 60 | ( ql(k,j,i) - ql_crit ) |
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| 61 | ELSE |
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| 62 | precipitation_rate = 0.0 |
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| 63 | ENDIF |
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| 64 | tend(k,j,i) = tend(k,j,i) - precipitation_rate |
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| 65 | |
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| 66 | ENDDO |
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| 67 | ENDDO |
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| 68 | ENDDO |
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| 69 | |
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| 70 | END SUBROUTINE calc_precipitation |
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| 71 | |
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| 72 | |
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| 73 | !------------------------------------------------------------------------------! |
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| 74 | ! Call for grid point i,j |
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| 75 | !------------------------------------------------------------------------------! |
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| 76 | SUBROUTINE calc_precipitation_ij( i, j ) |
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| 77 | |
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| 78 | USE arrays_3d |
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| 79 | USE cloud_parameters |
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| 80 | USE constants |
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| 81 | USE indices |
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| 82 | |
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| 83 | IMPLICIT NONE |
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| 84 | |
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| 85 | INTEGER :: i, j, k |
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| 86 | REAL :: precipitation_rate |
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| 87 | |
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| 88 | |
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| 89 | DO k = nzb_2d(j,i)+1, nzt-1 |
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| 90 | |
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| 91 | IF ( ql(k,j,i) > ql_crit ) THEN |
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| 92 | precipitation_rate = prec_time_const * ( ql(k,j,i) - ql_crit ) |
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| 93 | ELSE |
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| 94 | precipitation_rate = 0.0 |
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| 95 | ENDIF |
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| 96 | tend(k,j,i) = tend(k,j,i) - precipitation_rate |
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| 97 | |
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| 98 | ENDDO |
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| 99 | |
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| 100 | END SUBROUTINE calc_precipitation_ij |
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| 101 | |
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| 102 | END MODULE calc_precipitation_mod |
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