| 1 | MODULE calc_precipitation_mod |
|---|
| 2 | |
|---|
| 3 | !------------------------------------------------------------------------------! |
|---|
| 4 | ! Actual revisions: |
|---|
| 5 | ! ----------------- |
|---|
| 6 | ! Calculation extended for gridpoint nzt |
|---|
| 7 | ! |
|---|
| 8 | ! Former revisions: |
|---|
| 9 | ! ----------------- |
|---|
| 10 | ! $Id: calc_precipitation.f90 19 2007-02-23 04:53:48Z raasch $ |
|---|
| 11 | ! RCS Log replace by Id keyword, revision history cleaned up |
|---|
| 12 | ! |
|---|
| 13 | ! Revision 1.5 2004/01/30 10:15:57 raasch |
|---|
| 14 | ! Scalar lower k index nzb replaced by 2d-array nzb_2d |
|---|
| 15 | ! |
|---|
| 16 | ! Revision 1.1 2000/04/13 14:45:22 schroeter |
|---|
| 17 | ! Initial revision |
|---|
| 18 | ! |
|---|
| 19 | ! |
|---|
| 20 | ! |
|---|
| 21 | ! Description: |
|---|
| 22 | ! ------------ |
|---|
| 23 | ! Calculate the change of total water content due to precipitation |
|---|
| 24 | ! (simplified Kessler scheme) |
|---|
| 25 | !------------------------------------------------------------------------------! |
|---|
| 26 | |
|---|
| 27 | PRIVATE |
|---|
| 28 | PUBLIC calc_precipitation |
|---|
| 29 | |
|---|
| 30 | INTERFACE calc_precipitation |
|---|
| 31 | MODULE PROCEDURE calc_precipitation |
|---|
| 32 | MODULE PROCEDURE calc_precipitation_ij |
|---|
| 33 | END INTERFACE calc_precipitation |
|---|
| 34 | |
|---|
| 35 | CONTAINS |
|---|
| 36 | |
|---|
| 37 | |
|---|
| 38 | !------------------------------------------------------------------------------! |
|---|
| 39 | ! Call for all grid points |
|---|
| 40 | !------------------------------------------------------------------------------! |
|---|
| 41 | SUBROUTINE calc_precipitation |
|---|
| 42 | |
|---|
| 43 | USE arrays_3d |
|---|
| 44 | USE cloud_parameters |
|---|
| 45 | USE constants |
|---|
| 46 | USE indices |
|---|
| 47 | |
|---|
| 48 | IMPLICIT NONE |
|---|
| 49 | |
|---|
| 50 | INTEGER :: i, j, k |
|---|
| 51 | REAL :: precipitation_rate |
|---|
| 52 | |
|---|
| 53 | |
|---|
| 54 | DO i = nxl, nxr |
|---|
| 55 | DO j = nys, nyn |
|---|
| 56 | DO k = nzb_2d(j,i)+1, nzt |
|---|
| 57 | |
|---|
| 58 | IF ( ql(k,j,i) > ql_crit ) THEN |
|---|
| 59 | precipitation_rate = prec_time_const * & |
|---|
| 60 | ( ql(k,j,i) - ql_crit ) |
|---|
| 61 | ELSE |
|---|
| 62 | precipitation_rate = 0.0 |
|---|
| 63 | ENDIF |
|---|
| 64 | tend(k,j,i) = tend(k,j,i) - precipitation_rate |
|---|
| 65 | |
|---|
| 66 | ENDDO |
|---|
| 67 | ENDDO |
|---|
| 68 | ENDDO |
|---|
| 69 | |
|---|
| 70 | END SUBROUTINE calc_precipitation |
|---|
| 71 | |
|---|
| 72 | |
|---|
| 73 | !------------------------------------------------------------------------------! |
|---|
| 74 | ! Call for grid point i,j |
|---|
| 75 | !------------------------------------------------------------------------------! |
|---|
| 76 | SUBROUTINE calc_precipitation_ij( i, j ) |
|---|
| 77 | |
|---|
| 78 | USE arrays_3d |
|---|
| 79 | USE cloud_parameters |
|---|
| 80 | USE constants |
|---|
| 81 | USE indices |
|---|
| 82 | |
|---|
| 83 | IMPLICIT NONE |
|---|
| 84 | |
|---|
| 85 | INTEGER :: i, j, k |
|---|
| 86 | REAL :: precipitation_rate |
|---|
| 87 | |
|---|
| 88 | |
|---|
| 89 | DO k = nzb_2d(j,i)+1, nzt |
|---|
| 90 | |
|---|
| 91 | IF ( ql(k,j,i) > ql_crit ) THEN |
|---|
| 92 | precipitation_rate = prec_time_const * ( ql(k,j,i) - ql_crit ) |
|---|
| 93 | ELSE |
|---|
| 94 | precipitation_rate = 0.0 |
|---|
| 95 | ENDIF |
|---|
| 96 | tend(k,j,i) = tend(k,j,i) - precipitation_rate |
|---|
| 97 | |
|---|
| 98 | ENDDO |
|---|
| 99 | |
|---|
| 100 | END SUBROUTINE calc_precipitation_ij |
|---|
| 101 | |
|---|
| 102 | END MODULE calc_precipitation_mod |
|---|
