1 | !> @file compute_vpt.f90 |
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2 | !--------------------------------------------------------------------------------------------------! |
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3 | ! This file is part of the PALM model system. |
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4 | ! |
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5 | ! PALM is free software: you can redistribute it and/or modify it under the terms of the GNU General |
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6 | ! Public License as published by the Free Software Foundation, either version 3 of the License, or |
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7 | ! (at your option) any later version. |
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8 | ! |
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9 | ! PALM is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the |
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10 | ! implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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11 | ! Public License for more details. |
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12 | ! |
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13 | ! You should have received a copy of the GNU General Public License along with PALM. If not, see |
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14 | ! <http://www.gnu.org/licenses/>. |
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15 | ! |
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16 | ! Copyright 1997-2020 Leibniz Universitaet Hannover |
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17 | !--------------------------------------------------------------------------------------------------! |
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18 | ! |
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19 | ! Current revisions: |
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20 | ! ----------------- |
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21 | ! |
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22 | ! |
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23 | ! Former revisions: |
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24 | ! ----------------- |
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25 | ! $Id: compute_vpt.f90 4559 2020-06-11 08:51:48Z suehring $ |
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26 | ! file re-formatted to follow the PALM coding standard |
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27 | ! |
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28 | ! 4521 2020-05-06 11:39:49Z schwenkel |
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29 | ! Rename variable |
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30 | ! |
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31 | ! 4502 2020-04-17 16:14:16Z schwenkel |
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32 | ! Implementation of ice microphysics |
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33 | ! |
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34 | ! 4360 2020-01-07 11:25:50Z suehring |
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35 | ! Corrected "Former revisions" section |
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36 | ! |
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37 | ! 3655 2019-01-07 16:51:22Z knoop |
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38 | ! Modularization of all bulk cloud physics code components |
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39 | ! |
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40 | ! Revision 1.1 2000/04/13 14:40:53 schroeter |
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41 | ! Initial revision |
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42 | ! |
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43 | ! |
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44 | ! Description: |
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45 | ! ------------- |
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46 | !> Computation of the virtual potential temperature |
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47 | !--------------------------------------------------------------------------------------------------! |
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48 | SUBROUTINE compute_vpt |
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49 | |
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50 | |
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51 | USE arrays_3d, & |
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52 | ONLY: d_exner, pt, q, qi, ql, vpt |
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53 | |
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54 | USE basic_constants_and_equations_mod, & |
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55 | ONLY: ls_d_cp, lv_d_cp |
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56 | |
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57 | USE control_parameters, & |
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58 | ONLY: cloud_droplets |
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59 | |
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60 | USE indices, & |
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61 | ONLY: nzb, nzt |
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62 | |
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63 | USE kinds |
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64 | |
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65 | USE bulk_cloud_model_mod, & |
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66 | ONLY: bulk_cloud_model, microphysics_ice_phase |
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67 | |
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68 | IMPLICIT NONE |
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69 | |
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70 | INTEGER(iwp) :: k !< |
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71 | |
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72 | IF ( .NOT. bulk_cloud_model .AND. .NOT. cloud_droplets ) THEN |
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73 | vpt = pt * ( 1.0_wp + 0.61_wp * q ) |
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74 | ELSEIF ( bulk_cloud_model .AND. .NOT. microphysics_ice_phase ) THEN |
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75 | DO k = nzb, nzt+1 |
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76 | vpt(k,:,:) = ( pt(k,:,:) + d_exner(k) * lv_d_cp * ql(k,:,:) ) * & |
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77 | ( 1.0_wp + 0.61_wp * q(k,:,:) - 1.61_wp * ql(k,:,:) ) |
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78 | ENDDO |
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79 | ELSEIF ( bulk_cloud_model .AND. microphysics_ice_phase ) THEN |
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80 | DO k = nzb, nzt+1 |
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81 | vpt(k,:,:) = ( pt(k,:,:) + d_exner(k) * lv_d_cp * ql(k,:,:) + & |
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82 | d_exner(k) * ls_d_cp * qi(k,:,:) ) * & |
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83 | ( 1.0_wp + 0.61_wp * q(k,:,:) - 1.61_wp * ( ql(k,:,:) + qi(k,:,:) ) ) |
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84 | ENDDO |
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85 | ELSE |
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86 | vpt = pt * ( 1.0_wp + 0.61_wp * q - ql ) |
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87 | ENDIF |
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88 | |
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89 | END SUBROUTINE compute_vpt |
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